From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber Costa Subject: Re: [PATCH 0/8] RFC: vcpu pinning at qemu start Date: Tue, 04 Mar 2008 15:11:27 -0300 Message-ID: <47CD90CF.7000107@redhat.com> References: <12046477213193-git-send-email-gcosta@redhat.com> <20080304172631.GK6504@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel@lists.sourceforge.net, chrisw@sous-sol.org, avi@qumranet.com To: Joerg Roedel Return-path: In-Reply-To: <20080304172631.GK6504@amd.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org Joerg Roedel wrote: > On Tue, Mar 04, 2008 at 01:21:53PM -0300, Glauber Costa wrote: >> Hi guys, >> >> Here's a first series of patch aiming at vcpu pinning support in qemu. >> Ideally, as vcpu as just normal threads, the usual userspace tools can be used >> to set cpu affinities mask. >> >> However, It makes it very difficult to _start_ a vm with vcpus pinned, since >> we don't know the thread ids from qemu in advance, nor do we know when are the >> vcpus created. >> >> The patches introduce a -cpu-map option, that, if specified, starts the virtual cpus >> with the specified affinities. >> >> Comments? Welcome. Random rants? Not welcome, but... how can I stop you? So go ahead! > > Cool, this goes into the same direction as I planned for KVM-NUMA > support. Do you plan to extend vcpu pinning into that direction? I don't have any immediate plans, but it is surely interesting. If the patches (or something inspired in them) make it, there's something we can draw support for. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/