From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 154019656879062.85335917052919; Mon, 22 Oct 2018 01:22:48 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A15A4550CC; Mon, 22 Oct 2018 08:22:46 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5FE0C5C8B3; Mon, 22 Oct 2018 08:22:46 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 105EA18005B0; Mon, 22 Oct 2018 08:22:46 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w9M82wum003026 for ; Mon, 22 Oct 2018 04:02:58 -0400 Received: by smtp.corp.redhat.com (Postfix) id 64F196FECF; Mon, 22 Oct 2018 08:02:58 +0000 (UTC) Received: from mx1.redhat.com (ext-mx13.extmail.prod.ext.phx2.redhat.com [10.5.110.42]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1EE026FEC7; Mon, 22 Oct 2018 08:02:56 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E2D0C308212D; Mon, 22 Oct 2018 08:02:54 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:02:54 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:02:53 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891659" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:13 +0800 Message-Id: <1540195290-27666-2-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Mon, 22 Oct 2018 08:02:55 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Mon, 22 Oct 2018 08:02:55 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.42 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 01/18] docs, util: Refactor schemas and virresctrl to support optional cache X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 22 Oct 2018 08:22:47 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Refactor schemas and virresctrl to support optional element in . Later, the monitor entry will be introduced and to be placed under . Either cache entry or monitor entry is an optional element of . An cachetune has no element is taking the default resource allocating policy defined in '/sys/fs/resctrl/schemata'. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- docs/formatdomain.html.in | 4 ++-- docs/schemas/domaincommon.rng | 4 ++-- src/util/virresctrl.c | 28 ++++++++++++++++++++++++++++ 3 files changed, 32 insertions(+), 4 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 8189959..b1651e3 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -943,8 +943,8 @@
cache
- This element controls the allocation of CPU cache and has the - following attributes: + This optional element controls the allocation of CPU cache and= has + the following attributes:
level
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 099a949..5c533d6 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -956,7 +956,7 @@ - + @@ -980,7 +980,7 @@ - + diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 5d811a2..91bd341 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -234,6 +234,11 @@ virResctrlInfoMonFree(virResctrlInfoMonPtr mon) * in case there is no allocation for that particular cache allocation (le= vel, * cache, ...) or memory allocation for particular node). * + * Allocation corresponding to root directory, /sys/fs/sysctrl/, defines t= he + * default resource allocating policy, which is created immediately after + * mounting, and owns all the tasks and cpus in the system. Cache or memory + * bandwidth resource will be shared for tasks in this allocation. + * * =3D=3D=3D=3D=3DCache allocation technology (CAT)=3D=3D=3D=3D=3D * * Since one allocation can be made for caches on different levels, the fi= rst @@ -2215,6 +2220,15 @@ virResctrlAllocDeterminePath(virResctrlAllocPtr allo= c, return -1; } =20 + /* If the allocation is empty, then the path will be SYSFS_RESCTRL_PAT= H */ + if (virResctrlAllocIsEmpty(alloc)) { + if (!alloc->path && + VIR_STRDUP(alloc->path, SYSFS_RESCTRL_PATH) < 0) + return -1; + + return 0; + } + if (!alloc->path && virAsprintf(&alloc->path, "%s/%s-%s", SYSFS_RESCTRL_PATH, machinename, alloc->id) < 0) @@ -2248,6 +2262,11 @@ virResctrlAllocCreate(virResctrlInfoPtr resctrl, if (virResctrlAllocDeterminePath(alloc, machinename) < 0) return -1; =20 + /* If the allocation is empty, then do not create directory in underly= ing + * resctrl file system */ + if (virResctrlAllocIsEmpty(alloc)) + return 0; + if (virFileExists(alloc->path)) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Path '%s' for resctrl allocation exists"), @@ -2302,6 +2321,11 @@ virResctrlAllocAddPID(virResctrlAllocPtr alloc, char *pidstr =3D NULL; int ret =3D 0; =20 + /* If the allocation is empty, then it is impossible to add a PID to + * allocation due to lacking of its 'tasks' file. Just return */ + if (virResctrlAllocIsEmpty(alloc)) + return 0; + if (!alloc->path) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Cannot add pid to non-existing resctrl allocatio= n")); @@ -2334,6 +2358,10 @@ virResctrlAllocRemove(virResctrlAllocPtr alloc) { int ret =3D 0; =20 + /* No directory have ever been created. Just return */ + if (virResctrlAllocIsEmpty(alloc)) + return 0; + if (!alloc->path) return 0; =20 --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196570123147.47935482230366; Mon, 22 Oct 2018 01:22:50 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0F03B3084038; Mon, 22 Oct 2018 08:22:48 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C9B326FEC7; Mon, 22 Oct 2018 08:22:47 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 815D84CAA8; Mon, 22 Oct 2018 08:22:47 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w9M8359E003066 for ; Mon, 22 Oct 2018 04:03:05 -0400 Received: by smtp.corp.redhat.com (Postfix) id E39835D777; Mon, 22 Oct 2018 08:03:05 +0000 (UTC) Received: from mx1.redhat.com (ext-mx18.extmail.prod.ext.phx2.redhat.com [10.5.110.47]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 75F955D772; Mon, 22 Oct 2018 08:03:03 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2429F30821C3; Mon, 22 Oct 2018 08:02:57 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:02:56 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:02:54 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891663" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:14 +0800 Message-Id: <1540195290-27666-3-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Mon, 22 Oct 2018 08:02:57 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Mon, 22 Oct 2018 08:02:57 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.47 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 02/18] util: Introduce resctrl monitor for CMT X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Mon, 22 Oct 2018 08:22:48 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Cache Monitoring Technology (aka CMT) provides the capability to report cache utilization information of system task. This patch introduces the concept of resctrl monitor through data structure virResctrlMonitor. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/libvirt_private.syms | 1 + src/util/virresctrl.c | 79 ++++++++++++++++++++++++++++++++++++++++++++= ---- src/util/virresctrl.h | 9 ++++++ 3 files changed, 83 insertions(+), 6 deletions(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 335210c..d2573c5 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2680,6 +2680,7 @@ virResctrlInfoGetCache; virResctrlInfoGetMonitorPrefix; virResctrlInfoMonFree; virResctrlInfoNew; +virResctrlMonitorNew; =20 =20 # util/virrotatingfile.h diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 91bd341..6530801 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -36,9 +36,9 @@ VIR_LOG_INIT("util.virresctrl") =20 =20 /* Resctrl is short for Resource Control. It might be implemented for var= ious - * resources. Currently this supports cache allocation technology (aka CAT= ) and - * memory bandwidth allocation (aka MBA). More resources technologies may = be - * added in the future. + * resources. Currently this supports cache allocation technology (aka CAT= ), + * memory bandwidth allocation (aka MBA) and cache monitoring technology (= aka + * CMT). More resources technologies may be added in the future. */ =20 =20 @@ -105,6 +105,7 @@ typedef virResctrlAllocMemBW *virResctrlAllocMemBWPtr; /* Class definitions and initializations */ static virClassPtr virResctrlInfoClass; static virClassPtr virResctrlAllocClass; +static virClassPtr virResctrlMonitorClass; =20 =20 /* virResctrlInfo */ @@ -224,11 +225,16 @@ virResctrlInfoMonFree(virResctrlInfoMonPtr mon) } =20 =20 -/* virResctrlAlloc */ +/* virResctrlAlloc and virResctrlMonitor*/ =20 /* - * virResctrlAlloc represents one allocation (in XML under cputune/cachetu= ne and - * consequently a directory under /sys/fs/resctrl). Since it can have mul= tiple + * virResctrlAlloc and virResctrlMonitor are representing a resource contr= ol + * group (in XML under cputune/cachetune and consequently a directory under + * /sys/fs/resctrl). virResctrlAlloc is the data structure for resource + * allocation, while the virResctrlMonitor represents the resource monitor= ing + * part. + * + * virResctrlAlloc represents one allocation. Since it can have multiple * parts of multiple caches allocated it is represented as bunch of nested * sparse arrays (by sparse I mean array of pointers so that each might be= NULL * in case there is no allocation for that particular cache allocation (le= vel, @@ -275,6 +281,18 @@ virResctrlInfoMonFree(virResctrlInfoMonPtr mon) * a sparse array to represent whether a memory bandwidth allocation happe= ns * on corresponding node. The available memory controller number is collec= ted * in 'virResctrlInfo'. + * + * =3D=3D=3D=3D=3DCache monitoring technology (CMT)=3D=3D=3D=3D=3D + * + * Cache monitoring technology is used to perceive how many cache the proc= ess + * is using actually. virResctrlMonitor represents the resource control + * monitoring group, it is supported to monitor resource utilization + * information on granularity of vcpu. + * + * From hardware perspective, cache monitoring technology (CMT), memory + * bandwidth technology (MBM), as well as the CAT and MBA, are all orthogo= nal + * features. The monitor will be created under the scope of default resctl + * group if no specific CAT or MBA entries are provided for the guest." */ struct _virResctrlAllocPerType { /* There could be bool saying whether this is set or not, but since ev= erything @@ -320,6 +338,29 @@ struct _virResctrlAlloc { char *path; }; =20 +/* + * virResctrlMonitor is the data structure for resctrl monitor. Resctrl + * monitor represents a resctrl monitoring group, which can be used to + * monitor the resource utilization information for either cache or + * memory bandwidth. + */ +struct _virResctrlMonitor { + virObject parent; + + /* In resctrl, each monitor is associated with one specific allocation, + * either the allocation under / sys / fs / resctrl or allocation of t= he + * root directory itself. This pointer points to the allocation + * this monitor associated with. */ + virResctrlAllocPtr alloc; + /* The monitor identifier. For a monitor has the same @path name as its + * @alloc, the @id will be set to the same value as it is in @alloc->i= d. + */ + char *id; + /* libvirt-generated path in /sys/fs/resctrl for this particular + * monitor */ + char *path; +}; + =20 static void virResctrlAllocDispose(void *obj) @@ -369,6 +410,17 @@ virResctrlAllocDispose(void *obj) } =20 =20 +static void +virResctrlMonitorDispose(void *obj) +{ + virResctrlMonitorPtr monitor =3D obj; + + virObjectUnref(monitor->alloc); + VIR_FREE(monitor->id); + VIR_FREE(monitor->path); +} + + /* Global initialization for classes */ static int virResctrlOnceInit(void) @@ -379,6 +431,9 @@ virResctrlOnceInit(void) if (!VIR_CLASS_NEW(virResctrlAlloc, virClassForObject())) return -1; =20 + if (!VIR_CLASS_NEW(virResctrlMonitor, virClassForObject())) + return -1; + return 0; } =20 @@ -2373,3 +2428,15 @@ virResctrlAllocRemove(virResctrlAllocPtr alloc) =20 return ret; } + + +/* virResctrlMonitor-related definitions */ + +virResctrlMonitorPtr +virResctrlMonitorNew(void) +{ + if (virResctrlInitialize() < 0) + return NULL; + + return virObjectNew(virResctrlMonitorClass); +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index 10505e9..eaa077d 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -185,4 +185,13 @@ int virResctrlInfoGetMonitorPrefix(virResctrlInfoPtr resctrl, const char *prefix, virResctrlInfoMonPtr *monitor); + +/* Monitor-related things */ + +typedef struct _virResctrlMonitor virResctrlMonitor; +typedef virResctrlMonitor *virResctrlMonitorPtr; + + +virResctrlMonitorPtr +virResctrlMonitorNew(void); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; 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Mon, 22 Oct 2018 04:03:03 -0400 Received: by smtp.corp.redhat.com (Postfix) id 1A95C5C223; Mon, 22 Oct 2018 08:03:03 +0000 (UTC) Received: from mx1.redhat.com (ext-mx09.extmail.prod.ext.phx2.redhat.com [10.5.110.38]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 806A05C8B3; Mon, 22 Oct 2018 08:03:00 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 18213D3C21; Mon, 22 Oct 2018 08:02:59 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:02:58 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:02:56 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891668" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:15 +0800 Message-Id: <1540195290-27666-4-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); 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Mon, 22 Oct 2018 08:04:27 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The code for determining resctrl allocation path could be reused for monitor. Refactor it for reuse. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/util/virresctrl.c | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 6530801..956aca8 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2265,28 +2265,50 @@ virResctrlAllocAssign(virResctrlInfoPtr resctrl, } =20 =20 +static char * +virResctrlDeterminePath(const char *parentpath, + const char *prefix, + const char *id) +{ + char *path =3D NULL; + + if (!id) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Resctrl ID must be set before determining resctr= l " + "parentpath=3D'%s'"), parentpath); + return NULL; + } + + if (virAsprintf(&path, "%s/%s-%s", parentpath, prefix, id) < 0) + return NULL; + + return path; +} + + int virResctrlAllocDeterminePath(virResctrlAllocPtr alloc, const char *machinename) { - if (!alloc->id) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Resctrl Allocation ID must be set before creatio= n")); + if (alloc->path) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Resctrl allocation path is already set to '%s'"), + alloc->path); return -1; } =20 /* If the allocation is empty, then the path will be SYSFS_RESCTRL_PAT= H */ if (virResctrlAllocIsEmpty(alloc)) { - if (!alloc->path && - VIR_STRDUP(alloc->path, SYSFS_RESCTRL_PATH) < 0) + if (VIR_STRDUP(alloc->path, SYSFS_RESCTRL_PATH) < 0) return -1; =20 return 0; } =20 - if (!alloc->path && - virAsprintf(&alloc->path, "%s/%s-%s", - SYSFS_RESCTRL_PATH, machinename, alloc->id) < 0) + alloc->path =3D virResctrlDeterminePath(SYSFS_RESCTRL_PATH, + machinename, alloc->id); + + if (!alloc->path) return -1; =20 return 0; --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; 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22 Oct 2018 01:02:58 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891675" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:16 +0800 Message-Id: <1540195290-27666-5-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 22 Oct 2018 08:03:01 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 22 Oct 2018 08:03:01 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.38 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 04/18] util: Add interface to determine monitor path X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Mon, 22 Oct 2018 08:23:06 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add interface for resctrl monitor to determine the path. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/libvirt_private.syms | 1 + src/util/virresctrl.c | 55 ++++++++++++++++++++++++++++++++++++++++++++= ++++ src/util/virresctrl.h | 5 ++++- 3 files changed, 60 insertions(+), 1 deletion(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d2573c5..5235046 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2680,6 +2680,7 @@ virResctrlInfoGetCache; virResctrlInfoGetMonitorPrefix; virResctrlInfoMonFree; virResctrlInfoNew; +virResctrlMonitorDeterminePath; virResctrlMonitorNew; =20 =20 diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 956aca8..1d0eb01 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2462,3 +2462,58 @@ virResctrlMonitorNew(void) =20 return virObjectNew(virResctrlMonitorClass); } + + +/* + * virResctrlMonitorDeterminePath + * + * @monitor: Pointer to a resctrl monitor + * @machinename: Name string of the VM + * + * Determines the directory path that the underlying resctrl group will be + * created with. + * + * A monitor represents a directory under resource control file system, + * its directory path could be the same path as @monitor->alloc, could be a + * path of directory under 'mon_groups' of @monitor->alloc, or a path of + * directory under '/sys/fs/resctrl/mon_groups' if @monitor->alloc is NULL. + * + * Returns 0 on success, -1 on error. + */ +int +virResctrlMonitorDeterminePath(virResctrlMonitorPtr monitor, + const char *machinename) +{ + VIR_AUTOFREE(char *) parentpath =3D NULL; + + if (!monitor) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Invalid resctrl monitor")); + return -1; + } + + if (monitor->path) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Resctrl monitor path is already set to '%s'"), + monitor->path); + return -1; + } + + if (monitor->id && monitor->alloc && monitor->alloc->id) { + if (STREQ(monitor->id, monitor->alloc->id)) { + if (VIR_STRDUP(monitor->path, monitor->alloc->path) < 0) + return -1; + return 0; + } + } + + if (virAsprintf(&parentpath, "%s/mon_groups", monitor->alloc->path) < = 0) + return -1; + + monitor->path =3D virResctrlDeterminePath(parentpath, machinename, + monitor->id); + if (!monitor->path) + return -1; + + return 0; +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index eaa077d..baae554 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -191,7 +191,10 @@ virResctrlInfoGetMonitorPrefix(virResctrlInfoPtr resct= rl, typedef struct _virResctrlMonitor virResctrlMonitor; typedef virResctrlMonitor *virResctrlMonitorPtr; =20 - virResctrlMonitorPtr virResctrlMonitorNew(void); + +int +virResctrlMonitorDeterminePath(virResctrlMonitorPtr monitor, + const char *machinename); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196558812258.75442264612; Mon, 22 Oct 2018 01:22:38 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EC213C0528C4; 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Mon, 22 Oct 2018 08:03:03 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:03 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:01 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891686" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:17 +0800 Message-Id: <1540195290-27666-6-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 22 Oct 2018 08:03:03 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 22 Oct 2018 08:03:03 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.38 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 05/18] util: Refactor code for adding PID to the resource group X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 22 Oct 2018 08:22:37 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The code of adding PID to the allocation could be reused, refactor it for later reuse. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/util/virresctrl.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 1d0eb01..5fc8772 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2390,26 +2390,21 @@ virResctrlAllocCreate(virResctrlInfoPtr resctrl, } =20 =20 -int -virResctrlAllocAddPID(virResctrlAllocPtr alloc, - pid_t pid) +static int +virResctrlAddPID(const char *path, + pid_t pid) { char *tasks =3D NULL; char *pidstr =3D NULL; int ret =3D 0; =20 - /* If the allocation is empty, then it is impossible to add a PID to - * allocation due to lacking of its 'tasks' file. Just return */ - if (virResctrlAllocIsEmpty(alloc)) - return 0; - - if (!alloc->path) { + if (!path) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Cannot add pid to non-existing resctrl allocatio= n")); + _("Cannot add pid to non-existing resctrl group")); return -1; } =20 - if (virAsprintf(&tasks, "%s/tasks", alloc->path) < 0) + if (virAsprintf(&tasks, "%s/tasks", path) < 0) return -1; =20 if (virAsprintf(&pidstr, "%lld", (long long int) pid) < 0) @@ -2431,6 +2426,19 @@ virResctrlAllocAddPID(virResctrlAllocPtr alloc, =20 =20 int +virResctrlAllocAddPID(virResctrlAllocPtr alloc, + pid_t pid) +{ + /* If allocation is empty, then no resctrl directory and the 'tasks' f= ile + * exists, just return */ + if (virResctrlAllocIsEmpty(alloc)) + return 0; + + return virResctrlAddPID(alloc->path, pid); +} + + +int virResctrlAllocRemove(virResctrlAllocPtr alloc) { int ret =3D 0; --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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22 Oct 2018 01:03:03 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891701" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:18 +0800 Message-Id: <1540195290-27666-7-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:06 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:06 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 06/18] util: Add interface for adding PID to the monitor X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Mon, 22 Oct 2018 08:22:59 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add interface for adding task PID to the monitor. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/libvirt_private.syms | 1 + src/util/virresctrl.c | 8 ++++++++ src/util/virresctrl.h | 4 ++++ 3 files changed, 13 insertions(+) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 5235046..e175c8b 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2680,6 +2680,7 @@ virResctrlInfoGetCache; virResctrlInfoGetMonitorPrefix; virResctrlInfoMonFree; virResctrlInfoNew; +virResctrlMonitorAddPID; virResctrlMonitorDeterminePath; virResctrlMonitorNew; =20 diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 5fc8772..93b5e70 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2525,3 +2525,11 @@ virResctrlMonitorDeterminePath(virResctrlMonitorPtr = monitor, =20 return 0; } + + +int +virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, + pid_t pid) +{ + return virResctrlAddPID(monitor->path, pid); +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index baae554..52d283a 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -197,4 +197,8 @@ virResctrlMonitorNew(void); int virResctrlMonitorDeterminePath(virResctrlMonitorPtr monitor, const char *machinename); + +int +virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, + pid_t pid); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540195487031254.6284927518892; Mon, 22 Oct 2018 01:04:47 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E24BA30B8FB2; 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Mon, 22 Oct 2018 08:03:08 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 07/18] util: Refactor code for creating resctrl group X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Mon, 22 Oct 2018 08:04:45 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The code for creating resctrl allocation group could be reused for monitoring group, refactor it for reuse in the later patch. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/util/virresctrl.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-) diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 93b5e70..5b984d9 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2315,6 +2315,26 @@ virResctrlAllocDeterminePath(virResctrlAllocPtr allo= c, } =20 =20 +/* This function creates a resctrl directory in resource control file syst= em, + * and the directory path is specified by @path. */ +static int +virResctrlCreateGroupPath(const char *path) +{ + /* Directory exists, return */ + if (virFileExists(path)) + return 0; + + if (virFileMakePath(path) < 0) { + virReportSystemError(errno, + _("Cannot create resctrl directory '%s'"), + path); + return -1; + } + + return 0; +} + + /* This checks if the directory for the alloc exists. If not it tries to = create * it and apply appropriate alloc settings. */ int @@ -2344,13 +2364,6 @@ virResctrlAllocCreate(virResctrlInfoPtr resctrl, if (virResctrlAllocIsEmpty(alloc)) return 0; =20 - if (virFileExists(alloc->path)) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Path '%s' for resctrl allocation exists"), - alloc->path); - goto cleanup; - } - lockfd =3D virResctrlLockWrite(); if (lockfd < 0) goto cleanup; @@ -2358,6 +2371,9 @@ virResctrlAllocCreate(virResctrlInfoPtr resctrl, if (virResctrlAllocAssign(resctrl, alloc) < 0) goto cleanup; =20 + if (virResctrlCreateGroupPath(alloc->path) < 0) + goto cleanup; + alloc_str =3D virResctrlAllocFormat(alloc); if (!alloc_str) goto cleanup; @@ -2365,13 +2381,6 @@ virResctrlAllocCreate(virResctrlInfoPtr resctrl, if (virAsprintf(&schemata_path, "%s/schemata", alloc->path) < 0) goto cleanup; =20 - if (virFileMakePath(alloc->path) < 0) { - virReportSystemError(errno, - _("Cannot create resctrl directory '%s'"), - alloc->path); - goto cleanup; - } - VIR_DEBUG("Writing resctrl schemata '%s' into '%s'", alloc_str, schema= ta_path); if (virFileWriteStr(schemata_path, alloc_str, 0) < 0) { rmdir(alloc->path); --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196599057865.2643055198087; Mon, 22 Oct 2018 01:23:19 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BD2CA3082E02; 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Mon, 22 Oct 2018 08:03:09 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:09 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:07 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891736" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:20 +0800 Message-Id: <1540195290-27666-9-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:10 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:10 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 08/18] util: Add interface for creating monitor group X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Mon, 22 Oct 2018 08:23:17 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add interface for creating the resource monitoring group according to '@virResctrlMonitor->path'. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/libvirt_private.syms | 1 + src/util/virresctrl.c | 24 ++++++++++++++++++++++++ src/util/virresctrl.h | 4 ++++ 3 files changed, 29 insertions(+) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index e175c8b..a878083 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2681,6 +2681,7 @@ virResctrlInfoGetMonitorPrefix; virResctrlInfoMonFree; virResctrlInfoNew; virResctrlMonitorAddPID; +virResctrlMonitorCreate; virResctrlMonitorDeterminePath; virResctrlMonitorNew; =20 diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 5b984d9..9f42065 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2542,3 +2542,27 @@ virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, { return virResctrlAddPID(monitor->path, pid); } + + +int +virResctrlMonitorCreate(virResctrlMonitorPtr monitor, + const char *machinename) +{ + int lockfd =3D -1; + int ret =3D -1; + + if (!monitor) + return 0; + + if (virResctrlMonitorDeterminePath(monitor, machinename) < 0) + return -1; + + lockfd =3D virResctrlLockWrite(); + if (lockfd < 0) + return -1; + + ret =3D virResctrlCreateGroupPath(monitor->path); + + virResctrlUnlock(lockfd); + return ret; +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index 52d283a..76e40a2 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -201,4 +201,8 @@ virResctrlMonitorDeterminePath(virResctrlMonitorPtr mon= itor, int virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, pid_t pid); + +int +virResctrlMonitorCreate(virResctrlMonitorPtr monitor, + const char *machinename); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; 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22 Oct 2018 01:03:09 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891751" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:21 +0800 Message-Id: <1540195290-27666-10-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:12 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:12 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 09/18] util: Add more interfaces for resctrl monitor X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 22 Oct 2018 08:23:22 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add interfaces monitor group to support operations such as add PID, set ID, remove group ... etc. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/libvirt_private.syms | 5 +++++ src/util/virresctrl.c | 47 ++++++++++++++++++++++++++++++++++++++++++++= +++ src/util/virresctrl.h | 14 ++++++++++++++ 3 files changed, 66 insertions(+) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index a878083..d59ac86 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2683,7 +2683,12 @@ virResctrlInfoNew; virResctrlMonitorAddPID; virResctrlMonitorCreate; virResctrlMonitorDeterminePath; +virResctrlMonitorGetID; virResctrlMonitorNew; +virResctrlMonitorRemove; +virResctrlMonitorSetAlloc; +virResctrlMonitorSetID; + =20 =20 # util/virrotatingfile.h diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index 9f42065..b0205bc 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2566,3 +2566,50 @@ virResctrlMonitorCreate(virResctrlMonitorPtr monitor, virResctrlUnlock(lockfd); return ret; } + + +int +virResctrlMonitorSetID(virResctrlMonitorPtr monitor, + const char *id) +{ + if (!id) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Resctrl monitor 'id' cannot be NULL")); + return -1; + } + + return VIR_STRDUP(monitor->id, id); +} + + +const char * +virResctrlMonitorGetID(virResctrlMonitorPtr monitor) +{ + return monitor->id; +} + + +void +virResctrlMonitorSetAlloc(virResctrlMonitorPtr monitor, + virResctrlAllocPtr alloc) +{ + monitor->alloc =3D virObjectRef(alloc); +} + + +int +virResctrlMonitorRemove(virResctrlMonitorPtr monitor) +{ + int ret =3D 0; + + if (!monitor->path) + return 0; + + VIR_DEBUG("Removing resctrl monitor%s", monitor->path); + if (rmdir(monitor->path) !=3D 0 && errno !=3D ENOENT) { + ret =3D -errno; + VIR_ERROR(_("Unable to remove %s (%d)"), monitor->path, errno); + } + + return ret; +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index 76e40a2..804d6f5 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -205,4 +205,18 @@ virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, int virResctrlMonitorCreate(virResctrlMonitorPtr monitor, const char *machinename); + +int +virResctrlMonitorSetID(virResctrlMonitorPtr monitor, + const char *id); + +const char * +virResctrlMonitorGetID(virResctrlMonitorPtr monitor); + +void +virResctrlMonitorSetAlloc(virResctrlMonitorPtr monitor, + virResctrlAllocPtr alloc); + +int +virResctrlMonitorRemove(virResctrlMonitorPtr monitor); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196592128218.64455625422465; 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Mon, 22 Oct 2018 08:03:18 +0000 (UTC) Received: from mx1.redhat.com (ext-mx11.extmail.prod.ext.phx2.redhat.com [10.5.110.40]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BE15027BAB; Mon, 22 Oct 2018 08:03:16 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 20C1C3084259; Mon, 22 Oct 2018 08:03:14 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:13 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:11 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891769" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:22 +0800 Message-Id: <1540195290-27666-11-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Mon, 22 Oct 2018 08:03:14 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Mon, 22 Oct 2018 08:03:14 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.40 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 10/18] conf: Remove virDomainResctrlAppend and introduce virDomainResctrlNew X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 22 Oct 2018 08:23:10 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Introduced virDomainResctrlNew to do the most part of virDomainResctrlAppend and move the operation of appending resctrl to @def->resctrls out of function. Rather than rely on virDomainResctrlAppend to perform the allocation, move the onus to the caller and make use of virBitmapNewCopy for @vcpus and virObjectRef for @alloc, thus removing the need to set each to NULL after t= he call. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/conf/domain_conf.c | 60 +++++++++++++++++++++++++++++-----------------= ---- 1 file changed, 35 insertions(+), 25 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index e8e0adc..39bd396 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -18920,26 +18920,22 @@ virDomainCachetuneDefParseCache(xmlXPathContextPt= r ctxt, } =20 =20 -static int -virDomainResctrlAppend(virDomainDefPtr def, - xmlNodePtr node, - virResctrlAllocPtr alloc, - virBitmapPtr vcpus, - unsigned int flags) +static virDomainResctrlDefPtr +virDomainResctrlNew(xmlNodePtr node, + virResctrlAllocPtr *alloc, + virBitmapPtr *vcpus, + unsigned int flags) { char *vcpus_str =3D NULL; char *alloc_id =3D NULL; - virDomainResctrlDefPtr tmp_resctrl =3D NULL; - int ret =3D -1; - - if (VIR_ALLOC(tmp_resctrl) < 0) - goto cleanup; + virDomainResctrlDefPtr resctrl =3D NULL; + virDomainResctrlDefPtr ret =3D NULL; =20 /* We need to format it back because we need to be consistent in the n= aming * even when users specify some "sub-optimal" string there. */ - vcpus_str =3D virBitmapFormat(vcpus); + vcpus_str =3D virBitmapFormat(*vcpus); if (!vcpus_str) - goto cleanup; + return NULL; =20 if (!(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE)) alloc_id =3D virXMLPropString(node, "id"); @@ -18954,18 +18950,23 @@ virDomainResctrlAppend(virDomainDefPtr def, goto cleanup; } =20 - if (virResctrlAllocSetID(alloc, alloc_id) < 0) + if (virResctrlAllocSetID(*alloc, alloc_id) < 0) goto cleanup; =20 - tmp_resctrl->vcpus =3D vcpus; - tmp_resctrl->alloc =3D alloc; + if (VIR_ALLOC(resctrl) < 0) + goto cleanup; =20 - if (VIR_APPEND_ELEMENT(def->resctrls, def->nresctrls, tmp_resctrl) < 0) + if (!(resctrl->vcpus =3D virBitmapNewCopy(*vcpus))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("failed to copy 'vcpus'")); goto cleanup; + } =20 - ret =3D 0; + resctrl->alloc =3D virObjectRef(*alloc); + + VIR_STEAL_PTR(ret, resctrl); cleanup: - virDomainResctrlDefFree(tmp_resctrl); + virDomainResctrlDefFree(resctrl); VIR_FREE(alloc_id); VIR_FREE(vcpus_str); return ret; @@ -18982,6 +18983,7 @@ virDomainCachetuneDefParse(virDomainDefPtr def, xmlNodePtr *nodes =3D NULL; virBitmapPtr vcpus =3D NULL; virResctrlAllocPtr alloc =3D NULL; + virDomainResctrlDefPtr resctrl =3D NULL; ssize_t i =3D 0; int n; int ret =3D -1; @@ -19025,14 +19027,17 @@ virDomainCachetuneDefParse(virDomainDefPtr def, goto cleanup; } =20 - if (virDomainResctrlAppend(def, node, alloc, vcpus, flags) < 0) + resctrl =3D virDomainResctrlNew(node, &alloc, &vcpus, flags); + if (!resctrl) + goto cleanup; + + if (VIR_APPEND_ELEMENT(def->resctrls, def->nresctrls, resctrl) < 0) goto cleanup; - vcpus =3D NULL; - alloc =3D NULL; =20 ret =3D 0; cleanup: ctxt->node =3D oldnode; + virDomainResctrlDefFree(resctrl); virObjectUnref(alloc); virBitmapFree(vcpus); VIR_FREE(nodes); @@ -19190,6 +19195,8 @@ virDomainMemorytuneDefParse(virDomainDefPtr def, xmlNodePtr *nodes =3D NULL; virBitmapPtr vcpus =3D NULL; virResctrlAllocPtr alloc =3D NULL; + virDomainResctrlDefPtr resctrl =3D NULL; + ssize_t i =3D 0; int n; int ret =3D -1; @@ -19234,15 +19241,18 @@ virDomainMemorytuneDefParse(virDomainDefPtr def, * just update the existing alloc information, which is done in above * virDomainMemorytuneDefParseMemory */ if (new_alloc) { - if (virDomainResctrlAppend(def, node, alloc, vcpus, flags) < 0) + resctrl =3D virDomainResctrlNew(node, &alloc, &vcpus, flags); + if (!resctrl) + goto cleanup; + + if (VIR_APPEND_ELEMENT(def->resctrls, def->nresctrls, resctrl) < 0) goto cleanup; - vcpus =3D NULL; - alloc =3D NULL; } =20 ret =3D 0; cleanup: ctxt->node =3D oldnode; + virDomainResctrlDefFree(resctrl); virObjectUnref(alloc); virBitmapFree(vcpus); VIR_FREE(nodes); --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196609950457.64617684193774; 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Mon, 22 Oct 2018 08:23:28 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" This refactor allows to add some code between virDomainResctrlNew and virResctrlAllocIsEmpty to extend the scope of resctrl. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/conf/domain_conf.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 39bd396..a068d4d 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -19022,15 +19022,15 @@ virDomainCachetuneDefParse(virDomainDefPtr def, goto cleanup; } =20 + resctrl =3D virDomainResctrlNew(node, &alloc, &vcpus, flags); + if (!resctrl) + goto cleanup; + if (virResctrlAllocIsEmpty(alloc)) { ret =3D 0; goto cleanup; } =20 - resctrl =3D virDomainResctrlNew(node, &alloc, &vcpus, flags); - if (!resctrl) - goto cleanup; - if (VIR_APPEND_ELEMENT(def->resctrls, def->nresctrls, resctrl) < 0) goto cleanup; =20 --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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22 Oct 2018 01:03:15 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891799" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:24 +0800 Message-Id: <1540195290-27666-13-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:18 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:18 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 12/18] conf: Introduce cache monitor element in cachetune X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Mon, 22 Oct 2018 08:23:33 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Introducing element under to represent a cache monitor. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- docs/formatdomain.html.in | 26 +++ docs/schemas/domaincommon.rng | 10 + src/conf/domain_conf.c | 234 +++++++++++++++++= +++- src/conf/domain_conf.h | 11 + tests/genericxml2xmlindata/cachetune-cdp.xml | 3 + .../cachetune-colliding-monitor.xml | 30 +++ tests/genericxml2xmlindata/cachetune-small.xml | 7 + tests/genericxml2xmltest.c | 2 + 8 files changed, 322 insertions(+), 1 deletion(-) create mode 100644 tests/genericxml2xmlindata/cachetune-colliding-monitor.= xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index b1651e3..2fd665c 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -759,6 +759,12 @@ <cachetune vcpus=3D'0-3'> <cache id=3D'0' level=3D'3' type=3D'both' size=3D'3' unit=3D'MiB'= /> <cache id=3D'1' level=3D'3' type=3D'both' size=3D'3' unit=3D'MiB'= /> + <monitor level=3D'3' vcpus=3D'1'/> + <monitor level=3D'3' vcpus=3D'0-3'/> + </cachetune> + <cachetune vcpus=3D'4-5'> + <monitor level=3D'3' vcpus=3D'4'/> + <monitor level=3D'3' vcpus=3D'5'/> </cachetune> <memorytune vcpus=3D'0-3'> <node id=3D'0' bandwidth=3D'60'/> @@ -978,6 +984,26 @@
+
monitor
+
+ The optional element monitor creates the cache + monitor(s) for current cache allocation and has the following + required attributes: +
+
level
+
+ Host cache level the monitor belongs to. +
+
vcpus
+
+ vCPU list the monitor applies to. A monitor's vCPU list + can only be the member(s) of the vCPU list of associating + allocation. The default monitor has the same vCPU list as = the + associating allocation. For non-default monitors, there + are no vCPU overlap permitted. +
+
+
=20 diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 5c533d6..7ce49d3 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -981,6 +981,16 @@ + + + + + + + + + + diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index a068d4d..01f795f 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2955,13 +2955,31 @@ virDomainLoaderDefFree(virDomainLoaderDefPtr loader) =20 =20 static void +virDomainResctrlMonDefFree(virDomainResctrlMonDefPtr domresmon) +{ + if (!domresmon) + return; + + virBitmapFree(domresmon->vcpus); + virObjectUnref(domresmon->instance); + VIR_FREE(domresmon); +} + + +static void virDomainResctrlDefFree(virDomainResctrlDefPtr resctrl) { + size_t i =3D 0; + if (!resctrl) return; =20 + for (i =3D 0; i < resctrl->nmonitors; i++) + virDomainResctrlMonDefFree(resctrl->monitors[i]); + virObjectUnref(resctrl->alloc); virBitmapFree(resctrl->vcpus); + VIR_FREE(resctrl->monitors); VIR_FREE(resctrl); } =20 @@ -18920,6 +18938,177 @@ virDomainCachetuneDefParseCache(xmlXPathContextPt= r ctxt, } =20 =20 +/* Checking if the monitor's vcpus is conflicted with existing allocation + * and monitors. + * + * Returns 1 if @vcpus equals to @resctrl->vcpus, then the monitor will + * share the underlying resctrl group with @resctrl->alloc. Returns - 1 + * if any conflict found. Returns 0 if no conflict and @vcpus is not equal + * to @resctrl->vcpus. + */ +static int +virDomainResctrlMonValidateVcpus(virDomainResctrlDefPtr resctrl, + virBitmapPtr vcpus) +{ + size_t i =3D 0; + int vcpu =3D -1; + size_t mons_same_alloc_vcpus =3D 0; + + if (virBitmapIsAllClear(vcpus)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("vcpus is empty")); + return -1; + } + + while ((vcpu =3D virBitmapNextSetBit(vcpus, vcpu)) >=3D 0) { + if (!virBitmapIsBitSet(resctrl->vcpus, vcpu)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("Monitor vcpus conflicts with allocation")); + return -1; + } + } + + if (virBitmapEqual(vcpus, resctrl->vcpus)) + return 1; + + for (i =3D 0; i < resctrl->nmonitors; i++) { + if (virBitmapEqual(resctrl->vcpus, resctrl->monitors[i]->vcpus)) { + mons_same_alloc_vcpus++; + continue; + } + + if (virBitmapOverlaps(vcpus, resctrl->monitors[i]->vcpus)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("Monitor vcpus conflicts with monitors")); + + return -1; + } + } + + if (mons_same_alloc_vcpus > 1) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("Too many monitors have the same vcpu as allocati= on")); + return -1; + } + + return 0; +} + + +#define VIR_DOMAIN_RESCTRL_MONITOR_CACHELEVEL 3 + +static int +virDomainResctrlMonDefParse(virDomainDefPtr def, + xmlXPathContextPtr ctxt, + xmlNodePtr node, + virResctrlMonitorType tag, + virDomainResctrlDefPtr resctrl) +{ + virDomainResctrlMonDefPtr domresmon =3D NULL; + xmlNodePtr oldnode =3D ctxt->node; + xmlNodePtr *nodes =3D NULL; + unsigned int level =3D 0; + char *tmp =3D NULL; + char *id =3D NULL; + size_t i =3D 0; + int n =3D 0; + int rv =3D -1; + int ret =3D -1; + + ctxt->node =3D node; + + if ((n =3D virXPathNodeSet("./monitor", ctxt, &nodes)) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Cannot extract monitor nodes")); + goto cleanup; + } + + for (i =3D 0; i < n; i++) { + if (VIR_ALLOC(domresmon) < 0) + goto cleanup; + + domresmon->tag =3D tag; + + domresmon->instance =3D virResctrlMonitorNew(); + if (!domresmon->instance) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Could not create monitor")); + goto cleanup; + } + + if (tag =3D=3D VIR_RESCTRL_MONITOR_TYPE_CACHE) { + tmp =3D virXMLPropString(nodes[i], "level"); + if (!tmp) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("Missing monitor attribute 'level'")); + goto cleanup; + } + + if (virStrToLong_uip(tmp, NULL, 10, &level) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid monitor attribute 'level' value = '%s'"), + tmp); + goto cleanup; + } + + if (level !=3D VIR_DOMAIN_RESCTRL_MONITOR_CACHELEVEL) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid monitor cache level '%d'"), + level); + goto cleanup; + } + + VIR_FREE(tmp); + } + + if (virDomainResctrlParseVcpus(def, nodes[i], &domresmon->vcpus) <= 0) + goto cleanup; + + rv =3D virDomainResctrlMonValidateVcpus(resctrl, domresmon->vcpus); + if (rv < 0) + goto cleanup; + + /* If monitor's vcpu list is identical to the vcpu list of the + * associated allocation, set monitor's id to the same value + * as the allocation. */ + if (rv =3D=3D 1) { + const char *alloc_id =3D virResctrlAllocGetID(resctrl->alloc); + + if (VIR_STRDUP(id, alloc_id) < 0) + goto cleanup; + } else { + if (!(tmp =3D virBitmapFormat(domresmon->vcpus))) + goto cleanup; + + if (virAsprintf(&id, "vcpus_%s", tmp) < 0) + goto cleanup; + } + + virResctrlMonitorSetAlloc(domresmon->instance, resctrl->alloc); + + if (virResctrlMonitorSetID(domresmon->instance, id) < 0) + goto cleanup; + + if (VIR_APPEND_ELEMENT(resctrl->monitors, + resctrl->nmonitors, + domresmon) < 0) + goto cleanup; + + VIR_FREE(id); + VIR_FREE(tmp); + } + + ret =3D 0; + cleanup: + ctxt->node =3D oldnode; + VIR_FREE(id); + VIR_FREE(tmp); + VIR_FREE(nodes); + virDomainResctrlMonDefFree(domresmon); + return ret; +} + + static virDomainResctrlDefPtr virDomainResctrlNew(xmlNodePtr node, virResctrlAllocPtr *alloc, @@ -19026,7 +19215,14 @@ virDomainCachetuneDefParse(virDomainDefPtr def, if (!resctrl) goto cleanup; =20 - if (virResctrlAllocIsEmpty(alloc)) { + if (virDomainResctrlMonDefParse(def, ctxt, node, + VIR_RESCTRL_MONITOR_TYPE_CACHE, + resctrl) < 0) + goto cleanup; + + /* If no element or element in , do not + * append any resctrl element */ + if (virResctrlAllocIsEmpty(alloc) && !resctrl->nmonitors) { ret =3D 0; goto cleanup; } @@ -27063,12 +27259,41 @@ virDomainCachetuneDefFormatHelper(unsigned int le= vel, =20 =20 static int +virDomainResctrlMonDefFormatHelper(virDomainResctrlMonDefPtr domresmon, + virResctrlMonitorType tag, + virBufferPtr buf) +{ + char *vcpus =3D NULL; + + if (domresmon->tag !=3D tag) + return 0; + + virBufferAddLit(buf, "vcpus); + if (!vcpus) + return -1; + + virBufferAsprintf(buf, "vcpus=3D'%s'/>\n", vcpus); + + VIR_FREE(vcpus); + return 0; +} + + +static int virDomainCachetuneDefFormat(virBufferPtr buf, virDomainResctrlDefPtr resctrl, unsigned int flags) { virBuffer childrenBuf =3D VIR_BUFFER_INITIALIZER; char *vcpus =3D NULL; + size_t i =3D 0; int ret =3D -1; =20 virBufferSetChildIndent(&childrenBuf, buf); @@ -27077,6 +27302,13 @@ virDomainCachetuneDefFormat(virBufferPtr buf, &childrenBuf) < 0) goto cleanup; =20 + for (i =3D 0; i < resctrl->nmonitors; i ++) { + if (virDomainResctrlMonDefFormatHelper(resctrl->monitors[i], + VIR_RESCTRL_MONITOR_TYPE_CA= CHE, + &childrenBuf) < 0) + goto cleanup; + } + if (virBufferCheckError(&childrenBuf) < 0) goto cleanup; =20 diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index e30a4b2..60f6464 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2236,12 +2236,23 @@ struct _virDomainCputune { }; =20 =20 +typedef struct _virDomainResctrlMonDef virDomainResctrlMonDef; +typedef virDomainResctrlMonDef *virDomainResctrlMonDefPtr; +struct _virDomainResctrlMonDef { + virBitmapPtr vcpus; + virResctrlMonitorType tag; + virResctrlMonitorPtr instance; +}; + typedef struct _virDomainResctrlDef virDomainResctrlDef; typedef virDomainResctrlDef *virDomainResctrlDefPtr; =20 struct _virDomainResctrlDef { virBitmapPtr vcpus; virResctrlAllocPtr alloc; + + virDomainResctrlMonDefPtr *monitors; + size_t nmonitors; }; =20 =20 diff --git a/tests/genericxml2xmlindata/cachetune-cdp.xml b/tests/genericxm= l2xmlindata/cachetune-cdp.xml index 9718f06..9f4c139 100644 --- a/tests/genericxml2xmlindata/cachetune-cdp.xml +++ b/tests/genericxml2xmlindata/cachetune-cdp.xml @@ -8,9 +8,12 @@ + + + diff --git a/tests/genericxml2xmlindata/cachetune-colliding-monitor.xml b/t= ests/genericxml2xmlindata/cachetune-colliding-monitor.xml new file mode 100644 index 0000000..d481fb5 --- /dev/null +++ b/tests/genericxml2xmlindata/cachetune-colliding-monitor.xml @@ -0,0 +1,30 @@ + + QEMUGuest1 + c7a5fdbd-edaf-9455-926a-d65c16db1809 + 219136 + 219136 + 4 + + + + + + + + hvm + + + + destroy + restart + destroy + + /usr/bin/qemu-system-i686 + + + + + + + + diff --git a/tests/genericxml2xmlindata/cachetune-small.xml b/tests/generic= xml2xmlindata/cachetune-small.xml index ab2d9cf..748be08 100644 --- a/tests/genericxml2xmlindata/cachetune-small.xml +++ b/tests/genericxml2xmlindata/cachetune-small.xml @@ -7,6 +7,13 @@ + + + + + + + diff --git a/tests/genericxml2xmltest.c b/tests/genericxml2xmltest.c index fa941f0..4393d44 100644 --- a/tests/genericxml2xmltest.c +++ b/tests/genericxml2xmltest.c @@ -137,6 +137,8 @@ mymain(void) TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE); DO_TEST_FULL("cachetune-colliding-types", false, true, TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE); + DO_TEST_FULL("cachetune-colliding-monitor", false, true, + TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE); DO_TEST("memorytune"); DO_TEST_FULL("memorytune-colliding-allocs", false, true, TEST_COMPARE_DOM_XML2XML_RESULT_FAIL_PARSE); --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196621469566.5085203798; 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Mon, 22 Oct 2018 08:03:24 +0000 (UTC) Received: from mx1.redhat.com (ext-mx19.extmail.prod.ext.phx2.redhat.com [10.5.110.48]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 66C63608E7; Mon, 22 Oct 2018 08:03:21 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5F163307D846; Mon, 22 Oct 2018 08:03:20 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:20 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:18 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891814" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:25 +0800 Message-Id: <1540195290-27666-14-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); 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Mon, 22 Oct 2018 08:23:40 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add functions for creating, destroying, reconnecting resctrl monitor in qemu according to the configuration in domain XML. Signed-off-by: Wang Huaqiang Reviewed-by: John Ferlan --- src/qemu/qemu_process.c | 66 +++++++++++++++++++++++++++++++++++++++++++++= +++- 1 file changed, 65 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index e9c7618..fba4fb4 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -2611,10 +2611,21 @@ qemuProcessResctrlCreate(virQEMUDriverPtr driver, return -1; =20 for (i =3D 0; i < vm->def->nresctrls; i++) { + size_t j =3D 0; if (virResctrlAllocCreate(caps->host.resctrl, vm->def->resctrls[i]->alloc, priv->machineName) < 0) goto cleanup; + + for (j =3D 0; j < vm->def->resctrls[i]->nmonitors; j++) { + virDomainResctrlMonDefPtr mon =3D NULL; + + mon =3D vm->def->resctrls[i]->monitors[j]; + if (virResctrlMonitorCreate(mon->instance, + priv->machineName) < 0) + goto cleanup; + + } } =20 ret =3D 0; @@ -5430,6 +5441,7 @@ qemuProcessSetupVcpu(virDomainObjPtr vm, { pid_t vcpupid =3D qemuDomainGetVcpuPid(vm, vcpuid); virDomainVcpuDefPtr vcpu =3D virDomainDefGetVcpu(vm->def, vcpuid); + virDomainResctrlMonDefPtr mon =3D NULL; size_t i =3D 0; =20 if (qemuProcessSetupPid(vm, vcpupid, VIR_CGROUP_THREAD_VCPU, @@ -5440,11 +5452,42 @@ qemuProcessSetupVcpu(virDomainObjPtr vm, return -1; =20 for (i =3D 0; i < vm->def->nresctrls; i++) { + size_t j =3D 0; virDomainResctrlDefPtr ct =3D vm->def->resctrls[i]; =20 if (virBitmapIsBitSet(ct->vcpus, vcpuid)) { if (virResctrlAllocAddPID(ct->alloc, vcpupid) < 0) return -1; + + /* The order of invoking virResctrlMonitorAddPID matters, it is + * required to invoke this function first for monitor that has + * the same vcpus setting as the allocation in same def->resct= rl. + * Otherwise, some other monitor's pid may be removed from its + * resource group's 'tasks' file.*/ + for (j =3D 0; j < vm->def->resctrls[i]->nmonitors; j++) { + mon =3D vm->def->resctrls[i]->monitors[j]; + + if (!virBitmapEqual(ct->vcpus, mon->vcpus)) + continue; + + if (virBitmapIsBitSet(mon->vcpus, vcpuid)) { + if (virResctrlMonitorAddPID(mon->instance, vcpupid) < = 0) + return -1; + } + break; + } + + for (j =3D 0; j < vm->def->resctrls[i]->nmonitors; j++) { + mon =3D vm->def->resctrls[i]->monitors[j]; + + if (virBitmapEqual(ct->vcpus, mon->vcpus)) + continue; + + if (virBitmapIsBitSet(mon->vcpus, vcpuid)) { + if (virResctrlMonitorAddPID(mon->instance, vcpupid) < = 0) + return -1; + } + } break; } } @@ -7207,8 +7250,18 @@ void qemuProcessStop(virQEMUDriverPtr driver, /* Remove resctrl allocation after cgroups are cleaned up which makes = it * kind of safer (although removing the allocation should work even wi= th * pids in tasks file */ - for (i =3D 0; i < vm->def->nresctrls; i++) + for (i =3D 0; i < vm->def->nresctrls; i++) { + size_t j =3D 0; + + for (j =3D 0; j < vm->def->resctrls[i]->nmonitors; j++) { + virDomainResctrlMonDefPtr mon =3D NULL; + + mon =3D vm->def->resctrls[i]->monitors[j]; + virResctrlMonitorRemove(mon->instance); + } + virResctrlAllocRemove(vm->def->resctrls[i]->alloc); + } =20 qemuProcessRemoveDomainStatus(driver, vm); =20 @@ -7939,9 +7992,20 @@ qemuProcessReconnect(void *opaque) goto error; =20 for (i =3D 0; i < obj->def->nresctrls; i++) { + size_t j =3D 0; + if (virResctrlAllocDeterminePath(obj->def->resctrls[i]->alloc, priv->machineName) < 0) goto error; + + for (j =3D 0; j < obj->def->resctrls[i]->nmonitors; j++) { + virDomainResctrlMonDefPtr mon =3D NULL; + + mon =3D obj->def->resctrls[i]->monitors[j]; + if (virResctrlMonitorDeterminePath(mon->instance, + priv->machineName) < 0) + goto error; + } } =20 /* update domain state XML with possibly updated state in virDomainObj= */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; 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Mon, 22 Oct 2018 04:03:26 -0400 Received: by smtp.corp.redhat.com (Postfix) id EEEA61001944; Mon, 22 Oct 2018 08:03:25 +0000 (UTC) Received: from mx1.redhat.com (ext-mx19.extmail.prod.ext.phx2.redhat.com [10.5.110.48]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 946971001F40; Mon, 22 Oct 2018 08:03:23 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7D72C307D84A; Mon, 22 Oct 2018 08:03:22 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:22 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:20 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891827" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:26 +0800 Message-Id: <1540195290-27666-15-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); 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Mon, 22 Oct 2018 08:23:58 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Check whether monitor is running by checking the monitor's PIDs status. Monitor is looked as running normally if the vcpu PID list matches with the content of monitor's 'tasks' file. Signed-off-by: Wang Huaqiang --- src/libvirt_private.syms | 1 + src/util/virresctrl.c | 102 +++++++++++++++++++++++++++++++++++++++++++= +++- src/util/virresctrl.h | 3 ++ 3 files changed, 105 insertions(+), 1 deletion(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d59ac86..91801ed 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2684,6 +2684,7 @@ virResctrlMonitorAddPID; virResctrlMonitorCreate; virResctrlMonitorDeterminePath; virResctrlMonitorGetID; +virResctrlMonitorIsRunning; virResctrlMonitorNew; virResctrlMonitorRemove; virResctrlMonitorSetAlloc; diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index b0205bc..fa3e6e9 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -359,6 +359,9 @@ struct _virResctrlMonitor { /* libvirt-generated path in /sys/fs/resctrl for this particular * monitor */ char *path; + /* Tracking the tasks' PID associated with this monitor */ + pid_t *pids; + size_t npids; }; =20 =20 @@ -418,6 +421,7 @@ virResctrlMonitorDispose(void *obj) virObjectUnref(monitor->alloc); VIR_FREE(monitor->id); VIR_FREE(monitor->path); + VIR_FREE(monitor->pids); } =20 =20 @@ -2540,7 +2544,20 @@ int virResctrlMonitorAddPID(virResctrlMonitorPtr monitor, pid_t pid) { - return virResctrlAddPID(monitor->path, pid); + size_t i =3D 0; + + if (virResctrlAddPID(monitor->path, pid) < 0) + return -1; + + for (i =3D 0; i < monitor->npids; i++) { + if (pid =3D=3D monitor->pids[i]) + return 0; + } + + if (VIR_APPEND_ELEMENT(monitor->pids, monitor->npids, pid) < 0) + return -1; + + return 0; } =20 =20 @@ -2613,3 +2630,86 @@ virResctrlMonitorRemove(virResctrlMonitorPtr monitor) =20 return ret; } + + +static int +virResctrlPIDSorter(const void *pida, const void *pidb) +{ + return *(pid_t*)pida - *(pid_t*)pidb; +} + + +bool +virResctrlMonitorIsRunning(virResctrlMonitorPtr monitor) +{ + char *pidstr =3D NULL; + char **spids =3D NULL; + size_t nspids =3D 0; + pid_t *pids =3D NULL; + size_t npids =3D 0; + size_t i =3D 0; + int rv =3D -1; + bool ret =3D false; + + /* path is not determined yet, monitor is not running*/ + if (!monitor->path) + return false; + + /* No vcpu PID filled, regard monitor as not running */ + if (monitor->npids =3D=3D 0) + return false; + + /* If no 'tasks' file found, underlying resctrl directory is not + * ready, regard monitor as not running */ + rv =3D virFileReadValueString(&pidstr, "%s/tasks", monitor->path); + if (rv < 0) + goto cleanup; + + /* no PID in task file, monitor is not running */ + if (!*pidstr) + goto cleanup; + + /* The tracking monitor PID list is not identical to the + * list in current resctrl directory. monitor is corrupted, + * report error and un-running state */ + spids =3D virStringSplitCount(pidstr, "\n", 0, &nspids); + if (nspids !=3D monitor->npids) { + VIR_ERROR(_("Monitor %s PID list mismatch in length"), monitor->pa= th); + goto cleanup; + } + + for (i =3D 0; i < nspids; i++) { + unsigned int val =3D 0; + pid_t pid =3D 0; + + if (virStrToLong_uip(spids[i], NULL, 0, &val) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Monitor %s failed in parse PID list"), + monitor->path); + goto cleanup; + } + + pid =3D (pid_t)val; + + if (VIR_APPEND_ELEMENT(pids, npids, pid) < 0) + goto cleanup; + } + + qsort(pids, npids, sizeof(pid_t), virResctrlPIDSorter); + qsort(monitor->pids, monitor->npids, sizeof(pid_t), virResctrlPIDSorte= r); + + for (i =3D 0; i < monitor->npids; i++) { + if (monitor->pids[i] !=3D pids[i]) { + VIR_ERROR(_("Monitor %s PID list corrupted"), monitor->path); + goto cleanup; + } + } + + ret =3D true; + cleanup: + virStringListFree(spids); + VIR_FREE(pids); + VIR_FREE(pidstr); + + return ret; +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index 804d6f5..8d8fdc2 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -219,4 +219,7 @@ virResctrlMonitorSetAlloc(virResctrlMonitorPtr monitor, =20 int virResctrlMonitorRemove(virResctrlMonitorPtr monitor); + +bool +virResctrlMonitorIsRunning(virResctrlMonitorPtr monitor); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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22 Oct 2018 01:03:22 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891841" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:27 +0800 Message-Id: <1540195290-27666-16-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:24 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:24 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 15/18] conf: Add 'id' to virDomainResctrlDef X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Mon, 22 Oct 2018 08:04:57 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Adding element 'id' to virDomainResctrlDef tracking resource group id, it reflects the attribute 'id' of of element in XML. virResctrlAlloc.id is a copy from virDomanResctrlDef.id. Signed-off-by: Wang Huaqiang --- src/conf/domain_conf.c | 20 ++++++++------------ src/conf/domain_conf.h | 1 + 2 files changed, 9 insertions(+), 12 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 01f795f..1aecd8c 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2980,6 +2980,7 @@ virDomainResctrlDefFree(virDomainResctrlDefPtr resctr= l) virObjectUnref(resctrl->alloc); virBitmapFree(resctrl->vcpus); VIR_FREE(resctrl->monitors); + VIR_FREE(resctrl->id); VIR_FREE(resctrl); } =20 @@ -19145,6 +19146,9 @@ virDomainResctrlNew(xmlNodePtr node, if (VIR_ALLOC(resctrl) < 0) goto cleanup; =20 + if (VIR_STRDUP(resctrl->id, alloc_id) < 0) + goto cleanup; + if (!(resctrl->vcpus =3D virBitmapNewCopy(*vcpus))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to copy 'vcpus'")); @@ -27323,13 +27327,9 @@ virDomainCachetuneDefFormat(virBufferPtr buf, =20 virBufferAsprintf(buf, "alloc); - if (!alloc_id) - goto cleanup; + if (!(flags & VIR_DOMAIN_DEF_FORMAT_INACTIVE)) + virBufferAsprintf(buf, " id=3D'%s'", resctrl->id); =20 - virBufferAsprintf(buf, " id=3D'%s'", alloc_id); - } virBufferAddLit(buf, ">\n"); =20 virBufferAddBuffer(buf, &childrenBuf); @@ -27386,13 +27386,9 @@ virDomainMemorytuneDefFormat(virBufferPtr buf, =20 virBufferAsprintf(buf, "alloc); - if (!alloc_id) - goto cleanup; + if (!(flags & VIR_DOMAIN_DEF_FORMAT_INACTIVE)) + virBufferAsprintf(buf, " id=3D'%s'", resctrl->id); =20 - virBufferAsprintf(buf, " id=3D'%s'", alloc_id); - } virBufferAddLit(buf, ">\n"); =20 virBufferAddBuffer(buf, &childrenBuf); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 60f6464..e190aa2 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2248,6 +2248,7 @@ typedef struct _virDomainResctrlDef virDomainResctrlD= ef; typedef virDomainResctrlDef *virDomainResctrlDefPtr; =20 struct _virDomainResctrlDef { + char *id; virBitmapPtr vcpus; virResctrlAllocPtr alloc; =20 --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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22 Oct 2018 01:03:24 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891854" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:28 +0800 Message-Id: <1540195290-27666-17-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:26 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 22 Oct 2018 08:03:26 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.84 on 10.5.110.48 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 16/18] qemu: refactor qemuDomainGetStatsCpu X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 22 Oct 2018 08:23:44 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Refactoring qemuDomainGetStatsCpu, make it possible to add more CPU statistics. Signed-off-by: Wang Huaqiang --- src/qemu/qemu_driver.c | 45 ++++++++++++++++++++++----------------------- 1 file changed, 22 insertions(+), 23 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index a52e249..12a5f8f 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -19711,30 +19711,29 @@ qemuDomainGetStatsCpu(virQEMUDriverPtr driver ATT= RIBUTE_UNUSED, unsigned long long sys_time =3D 0; int err =3D 0; =20 - if (!priv->cgroup) - return 0; - - err =3D virCgroupGetCpuacctUsage(priv->cgroup, &cpu_time); - if (!err && virTypedParamsAddULLong(&record->params, - &record->nparams, - maxparams, - "cpu.time", - cpu_time) < 0) - return -1; + if (priv->cgroup) { + err =3D virCgroupGetCpuacctUsage(priv->cgroup, &cpu_time); + if (!err && virTypedParamsAddULLong(&record->params, + &record->nparams, + maxparams, + "cpu.time", + cpu_time) < 0) + return -1; =20 - err =3D virCgroupGetCpuacctStat(priv->cgroup, &user_time, &sys_time); - if (!err && virTypedParamsAddULLong(&record->params, - &record->nparams, - maxparams, - "cpu.user", - user_time) < 0) - return -1; - if (!err && virTypedParamsAddULLong(&record->params, - &record->nparams, - maxparams, - "cpu.system", - sys_time) < 0) - return -1; + err =3D virCgroupGetCpuacctStat(priv->cgroup, &user_time, &sys_tim= e); + if (!err && virTypedParamsAddULLong(&record->params, + &record->nparams, + maxparams, + "cpu.user", + user_time) < 0) + return -1; + if (!err && virTypedParamsAddULLong(&record->params, + &record->nparams, + maxparams, + "cpu.system", + sys_time) < 0) + return -1; + } =20 return 0; } --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; 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Mon, 22 Oct 2018 04:03:30 -0400 Received: by smtp.corp.redhat.com (Postfix) id 42A1F5D985; Mon, 22 Oct 2018 08:03:30 +0000 (UTC) Received: from mx1.redhat.com (ext-mx04.extmail.prod.ext.phx2.redhat.com [10.5.110.28]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3060D5D9CC; Mon, 22 Oct 2018 08:03:30 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A8D968830B; Mon, 22 Oct 2018 08:03:28 +0000 (UTC) Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 01:03:28 -0700 Received: from david-unc.bj.intel.com ([10.238.145.63]) by fmsmga007.fm.intel.com with ESMTP; 22 Oct 2018 01:03:26 -0700 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,411,1534834800"; d="scan'208";a="79891865" From: Wang Huaqiang To: jferlan@redhat.com, libvir-list@redhat.com Date: Mon, 22 Oct 2018 16:01:29 +0800 Message-Id: <1540195290-27666-18-git-send-email-huaqiang.wang@intel.com> In-Reply-To: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> References: <1540195290-27666-1-git-send-email-huaqiang.wang@intel.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 216 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 22 Oct 2018 08:03:29 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 22 Oct 2018 08:03:29 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.28 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 17/18] qemu: Report cache occupancy (CMT) with domstats X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Mon, 22 Oct 2018 08:05:09 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Adding the interface in qemu to report CMT statistic information through command 'virsh domstats --cpu-total'. Below is a typical output: # virsh domstats 1 --cpu-total Domain: 'ubuntu16.04-base' ... cpu.cache.monitor.count=3D2 cpu.cache.monitor.0.name=3Dvcpus_1 cpu.cache.monitor.0.vcpus=3D1 cpu.cache.monitor.0.bank.count=3D2 cpu.cache.monitor.0.bank.0.id=3D0 cpu.cache.monitor.0.bank.0.bytes=3D4505600 cpu.cache.monitor.0.bank.1.id=3D1 cpu.cache.monitor.0.bank.1.bytes=3D5586944 cpu.cache.monitor.1.name=3Dvcpus_4-6 cpu.cache.monitor.1.vcpus=3D4,5,6 cpu.cache.monitor.1.bank.count=3D2 cpu.cache.monitor.1.bank.0.id=3D0 cpu.cache.monitor.1.bank.0.bytes=3D17571840 cpu.cache.monitor.1.bank.1.id=3D1 cpu.cache.monitor.1.bank.1.bytes=3D29106176 Signed-off-by: Wang Huaqiang --- src/libvirt-domain.c | 9 ++ src/libvirt_private.syms | 1 + src/qemu/qemu_driver.c | 229 +++++++++++++++++++++++++++++++++++++++++++= ++++ src/util/virresctrl.c | 130 +++++++++++++++++++++++++++ src/util/virresctrl.h | 12 +++ 5 files changed, 381 insertions(+) diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 7690339..4895f9f 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -11345,6 +11345,15 @@ virConnectGetDomainCapabilities(virConnectPtr conn, * "cpu.user" - user cpu time spent in nanoseconds as unsigned long lo= ng. * "cpu.system" - system cpu time spent in nanoseconds as unsigned long * long. + * "cpu.cache.monitor.count" - tocal cache monitoring groups + * "cpu.cache.monitor.M.name" - name of cache monitoring group 'M' + * "cpu.cache.monitor.M.vcpus" - vcpus for cache monitoring group 'M' + * "cpu.cache.monitor.M.bank.count" - total bank number of cache monit= oring + * group 'M' + * "cpu.cache.monitor.M.bank.N.id" - OS assigned cache bank id for cac= he + * 'N' in cache monitoring group 'M' + * "cpu.cache.monitor.M.bank.N.bytes" - monitor's cache occupancy of c= ache + * bank 'N' in cache monitoring group 'M' * * VIR_DOMAIN_STATS_BALLOON: * Return memory balloon device information. diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 91801ed..4551767 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2683,6 +2683,7 @@ virResctrlInfoNew; virResctrlMonitorAddPID; virResctrlMonitorCreate; virResctrlMonitorDeterminePath; +virResctrlMonitorGetCacheOccupancy; virResctrlMonitorGetID; virResctrlMonitorIsRunning; virResctrlMonitorNew; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 12a5f8f..9828118 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -102,6 +102,7 @@ #include "virnuma.h" #include "dirname.h" #include "netdev_bandwidth_conf.h" +#include "c-ctype.h" =20 #define VIR_FROM_THIS VIR_FROM_QEMU =20 @@ -19698,6 +19699,230 @@ typedef enum { #define HAVE_JOB(flags) ((flags) & QEMU_DOMAIN_STATS_HAVE_JOB) =20 =20 +/* In terms of the output of virBitmapFormat, both '1-3' and '1,3' are val= id + * outputs and represent different vcpu set. But it is not easy to + * differentiate these two vcpu set formats at first glance. + * + * This function could be used to clear this ambiguity, it substitutes all= '-' + * with ',' while generates semantically correct vcpu set. + * e.g. vcpu set string '1-3' will be replaced by string '1,2,3'. */ +static char * +qemuDomainVcpuFormatHelper(const char *vcpus) +{ + size_t i =3D 0; + int last =3D 0; + int start =3D 0; + char * tmp =3D NULL; + bool firstnum =3D true; + const char *cur =3D vcpus; + virBuffer buf =3D VIR_BUFFER_INITIALIZER; + char *ret =3D NULL; + + if (virStringIsEmpty(cur)) + return NULL; + + while (*cur !=3D '\0') { + if (!c_isdigit(*cur)) + goto cleanup; + + if (virStrToLong_i(cur, &tmp, 10, &start) < 0) + goto cleanup; + if (start < 0) + goto cleanup; + + cur =3D tmp; + + virSkipSpaces(&cur); + + if (*cur =3D=3D ',' || *cur =3D=3D 0) { + if (!firstnum) + virBufferAddChar(&buf, ','); + virBufferAsprintf(&buf, "%d", start); + firstnum =3D false; + } else if (*cur =3D=3D '-') { + cur++; + virSkipSpaces(&cur); + + if (virStrToLong_i(cur, &tmp, 10, &last) < 0) + goto cleanup; + + if (last < start) + goto cleanup; + cur =3D tmp; + + for (i =3D start; i <=3D last; i++) { + if (!firstnum) + + virBufferAddChar(&buf, ','); + virBufferAsprintf(&buf, "%ld", i); + firstnum =3D 0; + } + + virSkipSpaces(&cur); + } + + if (*cur =3D=3D ',') { + cur++; + virSkipSpaces(&cur); + } else if (*cur =3D=3D 0) { + break; + } else { + goto cleanup; + } + } + + ret =3D virBufferContentAndReset(&buf); + cleanup: + virBufferFreeAndReset(&buf); + return ret; +} + + +static int +qemuDomainGetStatsCpuResource(virQEMUDriverPtr driver ATTRIBUTE_UNUSED, + virDomainObjPtr dom, + virDomainStatsRecordPtr record, + int *maxparams, + unsigned int privflags ATTRIBUTE_UNUSED, + virResctrlMonitorType restag) +{ + char param_name[VIR_TYPED_PARAM_FIELD_LENGTH]; + virDomainResctrlMonDefPtr domresmon =3D NULL; + virResctrlMonitorStatsPtr stats =3D NULL; + size_t nstats =3D 0; + virDomainResctrlDefPtr resctrl =3D NULL; + unsigned int nmonitors =3D 0; + unsigned int imonitor =3D 0; + const char *restype =3D NULL; + char *rawvcpus =3D NULL; + char *vcpus =3D NULL; + size_t i =3D 0; + size_t j =3D 0; + int ret =3D -1; + + if (!virDomainObjIsActive(dom)) + return 0; + + if (restag =3D=3D VIR_RESCTRL_MONITOR_TYPE_CACHE) { + restype =3D "cache"; + } else { + VIR_DEBUG("Invalid CPU resource type"); + return -1; + } + + for (i =3D 0; i < dom->def->nresctrls; i++) { + resctrl =3D dom->def->resctrls[i]; + + for (j =3D 0; j < resctrl->nmonitors; j++) { + domresmon =3D resctrl->monitors[j]; + if (virResctrlMonitorIsRunning(domresmon->instance) && + domresmon->tag =3D=3D restag) + nmonitors++; + } + } + + if (nmonitors) { + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.count", restype); + if (virTypedParamsAddUInt(&record->params, + &record->nparams, + maxparams, + param_name, + nmonitors) < 0) + goto cleanup; + } + + for (i =3D 0; i < dom->def->nresctrls; i++) { + resctrl =3D dom->def->resctrls[i]; + + for (j =3D 0; j < resctrl->nmonitors; j++) { + size_t l =3D 0; + virResctrlMonitorPtr monitor =3D resctrl->monitors[j]->instanc= e; + const char *id =3D virResctrlMonitorGetID(monitor); + + if (!id) + goto cleanup; + + domresmon =3D resctrl->monitors[j]; + + if (!virResctrlMonitorIsRunning(domresmon->instance)) + continue; + + if (!(rawvcpus =3D virBitmapFormat(domresmon->vcpus))) + goto cleanup; + + vcpus =3D qemuDomainVcpuFormatHelper(rawvcpus); + if (!vcpus) + goto cleanup; + + if (virResctrlMonitorGetCacheOccupancy(monitor, &stats, + &nstats) < 0) + goto cleanup; + + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.%d.name", restype, imonitor); + if (virTypedParamsAddString(&record->params, + &record->nparams, + maxparams, + param_name, + id) < 0) + goto cleanup; + + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.%d.vcpus", restype, imonitor); + + if (virTypedParamsAddString(&record->params, + &record->nparams, + maxparams, + param_name, + vcpus) < 0) + goto cleanup; + + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.%d.bank.count", restype, imonitor); + if (virTypedParamsAddUInt(&record->params, + &record->nparams, + maxparams, + param_name, + nstats) < 0) + goto cleanup; + + for (l =3D 0; l < nstats; l++) { + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.%d.bank.%ld.id", + restype, imonitor, l); + if (virTypedParamsAddUInt(&record->params, + &record->nparams, + maxparams, + param_name, + stats[l].id) < 0) + goto cleanup; + + + snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, + "cpu.%s.monitor.%d.bank.%ld.bytes", + restype, imonitor, l); + if (virTypedParamsAddUInt(&record->params, + &record->nparams, + maxparams, + param_name, + stats[l].val) < 0) + goto cleanup; + } + + VIR_FREE(stats); + VIR_FREE(vcpus); + imonitor++; + } + } + + ret =3D 0; + cleanup: + VIR_FREE(vcpus); + return ret; +} + + static int qemuDomainGetStatsCpu(virQEMUDriverPtr driver ATTRIBUTE_UNUSED, virDomainObjPtr dom, @@ -19735,6 +19960,10 @@ qemuDomainGetStatsCpu(virQEMUDriverPtr driver ATTR= IBUTE_UNUSED, return -1; } =20 + if (qemuDomainGetStatsCpuResource(driver, dom, record, maxparams, priv= flags, + VIR_RESCTRL_MONITOR_TYPE_CACHE) < 0) + return -1; + return 0; } =20 diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c index fa3e6e9..02e7095 100644 --- a/src/util/virresctrl.c +++ b/src/util/virresctrl.c @@ -2713,3 +2713,133 @@ virResctrlMonitorIsRunning(virResctrlMonitorPtr mon= itor) =20 return ret; } + + +static int +virResctrlMonitorStatsSorter(const void *a, + const void *b) +{ + return ((virResctrlMonitorStatsPtr)a)->id + - ((virResctrlMonitorStatsPtr)b)->id; +} + + +/* + * virResctrlMonitorGetStats + * + * @monitor: The monitor that the statistic data will be retrieved from. + * @resource: The name for resource name. 'llc_occupancy' for cache resour= ce. + * "mbm_total_bytes" and "mbm_local_bytes" for memory bandwidth resource. + * @stats: Array of virResctrlMonitorStatsPtr for holding cache or memory + * bandwidth usage data. + * @nstats: A size_t pointer to hold the returned array length of @stats + * + * Get cache or memory bandwidth utilization information. + * + * Returns 0 on success, -1 on error. + */ +static int +virResctrlMonitorGetStats(virResctrlMonitorPtr monitor, + const char *resource, + virResctrlMonitorStatsPtr *stats, + size_t *nstats) +{ + int rv =3D -1; + int ret =3D -1; + DIR *dirp =3D NULL; + char *datapath =3D NULL; + struct dirent *ent =3D NULL; + virResctrlMonitorStatsPtr stat =3D NULL; + + if (!monitor) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Invalid resctrl monitor")); + return -1; + } + + if (virAsprintf(&datapath, "%s/mon_data", monitor->path) < 0) + return -1; + + if (virDirOpen(&dirp, datapath) < 0) + goto cleanup; + + *nstats =3D 0; + while (virDirRead(dirp, &ent, datapath) > 0) { + char *node_id =3D NULL; + + if (VIR_ALLOC(stat) < 0) + goto cleanup; + + /* Looking for directory that contains resource utilization + * information file. The directory name is arranged in format + * "mon__". For example, "mon_L3_00" and + * "mon_L3_01" are two target directories for a two nodes system + * with resource utilization data file for each node respectively. + */ + if (ent->d_type !=3D DT_DIR) + continue; + + /* Looking for directory has a prefix 'mon_L' */ + if (!(node_id =3D STRSKIP(ent->d_name, "mon_L"))) + continue; + + /* Looking for directory has another '_' */ + node_id =3D strchr(node_id, '_'); + if (!node_id) + continue; + + /* Skip the character '_' */ + if (!(node_id =3D STRSKIP(node_id, "_"))) + continue; + + /* The node ID number should be here, parsing it. */ + if (virStrToLong_uip(node_id, NULL, 0, &stat->id) < 0) + goto cleanup; + + rv =3D virFileReadValueUint(&stat->val, "%s/%s/%s", datapath, + ent->d_name, resource); + if (rv =3D=3D -2) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("File '%s/%s/%s' does not exist."), + datapath, ent->d_name, resource); + } + if (rv < 0) + goto cleanup; + + if (VIR_APPEND_ELEMENT(*stats, *nstats, *stat) < 0) + goto cleanup; + } + + /* Sort in id's ascending order */ + qsort(*stats, *nstats, sizeof(*stat), virResctrlMonitorStatsSorter); + + ret =3D 0; + cleanup: + VIR_FREE(datapath); + VIR_FREE(stat); + VIR_DIR_CLOSE(dirp); + return ret; +} + + +/* + * virResctrlMonitorGetCacheOccupancy + * + * @monitor: The monitor that the statistic data will be retrieved from. + * @caches: Array of virResctrlMonitorStatsPtr for receiving cache occupan= cy + * data. Caller is responsible to free this array. + * @ncaches: A size_t pointer to hold the returned array length of @caches + * + * Get cache or memory bandwidth utilization information. + * + * Returns 0 on success, -1 on error. + */ + +int +virResctrlMonitorGetCacheOccupancy(virResctrlMonitorPtr monitor, + virResctrlMonitorStatsPtr *caches, + size_t *ncaches) +{ + return virResctrlMonitorGetStats(monitor, "llc_occupancy", + caches, ncaches); +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h index 8d8fdc2..004c40e 100644 --- a/src/util/virresctrl.h +++ b/src/util/virresctrl.h @@ -191,6 +191,13 @@ virResctrlInfoGetMonitorPrefix(virResctrlInfoPtr resct= rl, typedef struct _virResctrlMonitor virResctrlMonitor; typedef virResctrlMonitor *virResctrlMonitorPtr; =20 +typedef struct _virResctrlMonitorStats virResctrlMonitorStats; +typedef virResctrlMonitorStats *virResctrlMonitorStatsPtr; +struct _virResctrlMonitorStats { + unsigned int id; + unsigned int val; +}; + virResctrlMonitorPtr virResctrlMonitorNew(void); =20 @@ -222,4 +229,9 @@ virResctrlMonitorRemove(virResctrlMonitorPtr monitor); =20 bool virResctrlMonitorIsRunning(virResctrlMonitorPtr monitor); + +int +virResctrlMonitorGetCacheOccupancy(virResctrlMonitorPtr monitor, + virResctrlMonitorStatsPtr *caches, + size_t *ncaches); #endif /* __VIR_RESCTRL_H__ */ --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Fri May 3 02:40:12 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=intel.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1540196636541686.5893633966455; 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Mon, 22 Oct 2018 08:03:30 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 22 Oct 2018 08:03:30 +0000 (UTC) for IP:'192.55.52.120' DOMAIN:'mga04.intel.com' HELO:'mga04.intel.com' FROM:'huaqiang.wang@intel.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 192.55.52.120 mga04.intel.com 192.55.52.120 mga04.intel.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.28 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-loop: libvir-list@redhat.com Cc: shaohe.feng@intel.com, huaqiang.wang@intel.com, bing.niu@intel.com, jian-feng.ding@intel.com, rui.zang@intel.com Subject: [libvirt] [PATCHv7 18/18] qemu: Setting up vcpu and adding pids to resctrl monitor groups during reconnection X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Mon, 22 Oct 2018 08:23:55 +0000 (UTC) X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Invoking qemuProcessSetupVcpus in process of VM reconnection. The vcpu pid information need to be refilled to resctrl monitor after a VM reconnection./ Signed-off-by: Wang Huaqiang --- src/qemu/qemu_process.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index fba4fb4..ed0330b 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -8008,6 +8008,9 @@ qemuProcessReconnect(void *opaque) } } =20 + if (qemuProcessSetupVcpus(obj) < 0) + goto error; + /* update domain state XML with possibly updated state in virDomainObj= */ if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, obj, driver->ca= ps) < 0) goto error; --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list