From nobody Sun Feb 8 13:09:27 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.25 as permitted sender) client-ip=209.132.183.25; envelope-from=libvir-list-bounces@redhat.com; helo=mx4-phx2.redhat.com; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.25 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; Return-Path: Received: from mx4-phx2.redhat.com (mx4-phx2.redhat.com [209.132.183.25]) by mx.zohomail.com with SMTPS id 1487862097752441.09482794133703; Thu, 23 Feb 2017 07:01:37 -0800 (PST) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by mx4-phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v1NEumA3008433; Thu, 23 Feb 2017 09:56:48 -0500 Received: from smtp.corp.redhat.com (int-mx16.intmail.prod.int.phx2.redhat.com [10.5.11.28]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id v1NEultl028079 for ; Thu, 23 Feb 2017 09:56:47 -0500 Received: by smtp.corp.redhat.com (Postfix) id AFB3DB7D30; Thu, 23 Feb 2017 14:56:47 +0000 (UTC) Received: from mx1.redhat.com (ext-mx06.extmail.prod.ext.phx2.redhat.com [10.5.110.30]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A8BDE1CDD8F for ; Thu, 23 Feb 2017 14:56:47 +0000 (UTC) Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 C00833D962 for ; Thu, 23 Feb 2017 14:56:46 +0000 (UTC) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1NEskC0038740 for ; Thu, 23 Feb 2017 09:56:45 -0500 Received: from e23smtp03.au.ibm.com (e23smtp03.au.ibm.com [202.81.31.145]) by mx0a-001b2d01.pphosted.com with ESMTP id 28t0auvykq-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 23 Feb 2017 09:56:44 -0500 Received: from localhost by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 24 Feb 2017 00:56:40 +1000 Received: from d23dlp01.au.ibm.com (202.81.31.203) by e23smtp03.au.ibm.com (202.81.31.209) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Fri, 24 Feb 2017 00:56:38 +1000 Received: from d23relay10.au.ibm.com (d23relay10.au.ibm.com [9.190.26.77]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 2AC1F2CE8054; Fri, 24 Feb 2017 01:56:38 +1100 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v1NEuU9D47382648; Fri, 24 Feb 2017 01:56:38 +1100 Received: from d23av04.au.ibm.com (localhost [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v1NEu5jb027475; Fri, 24 Feb 2017 01:56:06 +1100 Received: from localhost.in.ibm.com ([9.124.35.101]) by d23av04.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v1NEu196027181; Fri, 24 Feb 2017 01:56:04 +1100 From: Nitesh Konkar To: libvir-list@redhat.com Date: Thu, 23 Feb 2017 20:25:30 +0530 In-Reply-To: <1487861739-24929-1-git-send-email-niteshkonkar.libvirt@gmail.com> References: <1487861739-24929-1-git-send-email-niteshkonkar.libvirt@gmail.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17022314-0008-0000-0000-0000010E283E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17022314-0009-0000-0000-0000091C9396 Message-Id: <1487861739-24929-2-git-send-email-niteshkonkar.libvirt@gmail.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-23_11:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=15 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702230140 X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 200 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 23 Feb 2017 14:56:46 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 23 Feb 2017 14:56:46 +0000 (UTC) for IP:'148.163.156.1' DOMAIN:'mx0a-001b2d01.pphosted.com' HELO:'mx0a-001b2d01.pphosted.com' FROM:'niteshkonkar.libvirt@gmail.com' RCPT:'' X-RedHat-Spam-Score: 1.06 * (BAYES_50, DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM, NML_ADSP_CUSTOM_MED, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_SOFTFAIL) 148.163.156.1 mx0a-001b2d01.pphosted.com 148.163.156.1 mx0a-001b2d01.pphosted.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.30 X-Scanned-By: MIMEDefang 2.74 on 10.5.11.28 X-loop: libvir-list@redhat.com Cc: Nitesh Konkar , Nitesh Konkar Subject: [libvirt] [PATCH v2 01/10] perf: add cpu_clock software perf event support 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-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" This patch adds support and documentation for the cpu_clock perf event. Signed-off-by: Nitesh Konkar --- docs/formatdomain.html.in | 8 ++++++++ docs/schemas/domaincommon.rng | 1 + include/libvirt/libvirt-domain.h | 11 +++++++++++ src/libvirt-domain.c | 2 ++ src/qemu/qemu_driver.c | 1 + src/util/virperf.c | 6 +++++- src/util/virperf.h | 1 + tests/genericxml2xmlindata/generic-perf.xml | 1 + tools/virsh.pod | 3 +++ 9 files changed, 33 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 02ce792..403932b 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1936,6 +1936,7 @@ <event name=3D'stalled_cycles_frontend' enabled=3D'no'/> <event name=3D'stalled_cycles_backend' enabled=3D'no'/> <event name=3D'ref_cpu_cycles' enabled=3D'no'/> + <event name=3D'cpu_clock' enabled=3D'no'/> </perf> ... @@ -2014,6 +2015,13 @@ by applications running on the platform perf.ref_cpu_cycles + + cpu_clock + the count of cpu clock time, as measured by a monotonic + high-resolution per-CPU timer, by applications running on + the platform + perf.cpu_clock + =20

Devices

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index c64544a..8f52830 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -433,6 +433,7 @@ stalled_cycles_frontend stalled_cycles_backend ref_cpu_cycles + cpu_clock diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-dom= ain.h index c0f715d..d594121 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -2188,6 +2188,17 @@ void virDomainStatsRecordListFree(virDomainStatsReco= rdPtr *stats); */ # define VIR_PERF_PARAM_REF_CPU_CYCLES "ref_cpu_cycles" =20 +/** + * VIR_PERF_PARAM_CPU_CLOCK: + * + * Macro for typed parameter name that represents cpu_clock + * perf event which can be used to measure the count of cpu + * clock time by applications running on the platform. It + * corresponds to the "perf.cpu_clock" field in the *Stats + * APIs. + */ +# define VIR_PERF_PARAM_CPU_CLOCK "cpu_clock" + int virDomainGetPerfEvents(virDomainPtr dom, virTypedParameterPtr *params, int *nparams, diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 619a9fc..427101f 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -11250,6 +11250,8 @@ virConnectGetDomainCapabilities(virConnectPtr conn, * CPU frequency scaling by applications runni= ng * as unsigned long long. It is produced by the * ref_cpu_cycles perf event. + * "perf.cpu_clock" - The count of cpu clock time as unsigned long lon= g. + * It is produced by the cpu_clock perf event. * * Note that entire stats groups or individual stat fields may be missing = from * the output in case they are not supported by the given hypervisor, are = not diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 6e1e3d4..d64db3f 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -9569,6 +9569,7 @@ qemuDomainSetPerfEvents(virDomainPtr dom, VIR_PERF_PARAM_STALLED_CYCLES_FRONTEND, VIR= _TYPED_PARAM_BOOLEAN, VIR_PERF_PARAM_STALLED_CYCLES_BACKEND, VIR_= TYPED_PARAM_BOOLEAN, VIR_PERF_PARAM_REF_CPU_CYCLES, VIR_TYPED_PA= RAM_BOOLEAN, + VIR_PERF_PARAM_CPU_CLOCK, VIR_TYPED_PARAM_B= OOLEAN, NULL) < 0) return -1; =20 diff --git a/src/util/virperf.c b/src/util/virperf.c index 4493608..2d6cbbb 100644 --- a/src/util/virperf.c +++ b/src/util/virperf.c @@ -43,7 +43,8 @@ VIR_ENUM_IMPL(virPerfEvent, VIR_PERF_EVENT_LAST, "cache_references", "cache_misses", "branch_instructions", "branch_misses", "bus_cycles", "stalled_cycles_frontend", - "stalled_cycles_backend", "ref_cpu_cycles"); + "stalled_cycles_backend", "ref_cpu_cycles", + "cpu_clock"); =20 struct virPerfEvent { int type; @@ -112,6 +113,9 @@ static struct virPerfEventAttr attrs[] =3D { .attrConfig =3D 0, # endif }, + {.type =3D VIR_PERF_EVENT_CPU_CLOCK, + .attrType =3D PERF_TYPE_SOFTWARE, + .attrConfig =3D PERF_COUNT_SW_CPU_CLOCK}, }; typedef struct virPerfEventAttr *virPerfEventAttrPtr; =20 diff --git a/src/util/virperf.h b/src/util/virperf.h index 1f43c92..8a7270c 100644 --- a/src/util/virperf.h +++ b/src/util/virperf.h @@ -47,6 +47,7 @@ typedef enum { the backend of the instructi= on processor pipeline */ VIR_PERF_EVENT_REF_CPU_CYCLES, /* Count of ref cpu cycles */ + VIR_PERF_EVENT_CPU_CLOCK, /* Count of cpu clock time*/ =20 VIR_PERF_EVENT_LAST } virPerfEventType; diff --git a/tests/genericxml2xmlindata/generic-perf.xml b/tests/genericxml= 2xmlindata/generic-perf.xml index 437cd65..3e7834e 100644 --- a/tests/genericxml2xmlindata/generic-perf.xml +++ b/tests/genericxml2xmlindata/generic-perf.xml @@ -26,6 +26,7 @@ + diff --git a/tools/virsh.pod b/tools/virsh.pod index 6c06ee0..b672679 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -964,6 +964,7 @@ I<--perf> returns the statistics of all enabled perf ev= ents: "perf.stalled_cycles_backend" - the count of stalled backend cpu cycles "perf.ref_cpu_cycles" - the count of ref cpu cycles + "perf.cpu_clock" - the count of cpu clock time =20 See the B command for more details about each event. =20 @@ -2333,6 +2334,8 @@ B ref_cpu_cycles - Provides the count of total cpu cycles not affected by CPU frequency scaling by applications running on the platform. + cpu_clock - Provides the cpu clock time consumed by + applications running on the platform. =20 B: The statistics can be retrieved using the B command usi= ng the I<--perf> flag. --=20 1.9.3 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list