From nobody Mon Apr 29 02:32:28 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 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1521668721434930.3803721618124; Wed, 21 Mar 2018 14:45:21 -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 403C7734; Wed, 21 Mar 2018 21:45:19 +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 AEE03611A0; Wed, 21 Mar 2018 21:45:17 +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 D9A524CA9A; Wed, 21 Mar 2018 21:45:15 +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 w2LLitin023359 for ; Wed, 21 Mar 2018 17:44:55 -0400 Received: by smtp.corp.redhat.com (Postfix) id 786118273D; Wed, 21 Mar 2018 21:44:55 +0000 (UTC) Received: from mx1.redhat.com (ext-mx08.extmail.prod.ext.phx2.redhat.com [10.5.110.32]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7080C82735 for ; Wed, 21 Mar 2018 21:44:52 +0000 (UTC) Received: from smtp2.provo.novell.com (smtp2.provo.novell.com [137.65.250.81]) (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 D5BBCC0587C5 for ; Wed, 21 Mar 2018 21:44:50 +0000 (UTC) Received: from linux-tbji.provo.novell.com (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by smtp2.provo.novell.com with ESMTP (NOT encrypted); Wed, 21 Mar 2018 15:44:44 -0600 From: Jim Fehlig To: libvir-list@redhat.com Date: Wed, 21 Mar 2018 15:44:17 -0600 Message-Id: <20180321214417.17379-1-jfehlig@suse.com> X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 207 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 21 Mar 2018 21:44:51 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 21 Mar 2018 21:44:51 +0000 (UTC) for IP:'137.65.250.81' DOMAIN:'smtp2.provo.novell.com' HELO:'smtp2.provo.novell.com' FROM:'jfehlig@suse.com' RCPT:'' X-RedHat-Spam-Score: -2.301 (RCVD_IN_DNSWL_MED, SPF_PASS) 137.65.250.81 smtp2.provo.novell.com 137.65.250.81 smtp2.provo.novell.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.32 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH] news: Xen: announce removal of hard-code scheduler weight 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 [10.5.110.29]); Wed, 21 Mar 2018 21:45:20 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Also describe a possible side-affect due to changes in the default (unspecified) value from 1000 to 256. Signed-off-by: Jim Fehlig Reviewed-by: John Ferlan --- docs/news.xml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index 75a054308..93ab59cf4 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -66,6 +66,22 @@ If someone customizing IP address inside VM, it will be helpful. + + + Xen: Remove hard-coded scheduler weight + + + The libxl driver was accidentally hard-coding the per-domain + scheduler weight to 1000, silently ignoring any user-provided + <shares> in <cputune>. The + driver now honors <shares>, and defers setting + a default value to Xen. Note that the Xen default is 256, so any + domains started after this improvement will have one fourth the + shares of previously started domains. If all domains must have + equal CPU shares, administrators must manually set the weight of + previously started domains to 256, or restart them. + +
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