From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH] tcm_vhost: Multi-queue support Date: Wed, 6 Feb 2013 06:59:42 -0500 (EST) Message-ID: <2066806628.37341089.1360151982783.JavaMail.root@redhat.com> References: <511227A6.4000107@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Stefan Hajnoczi , "Michael S. Tsirkin" , Rusty Russell , kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, target-devel@vger.kernel.org, "Nicholas A. Bellinger" To: Asias He Return-path: In-Reply-To: <511227A6.4000107@redhat.com> Sender: target-devel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org ----- Messaggio originale ----- > Da: "Asias He" > A: "Nicholas A. Bellinger" > Cc: "Paolo Bonzini" , "Stefan Hajnoczi" , "Michael S. Tsirkin" > , "Rusty Russell" , kvm@vger.k= ernel.org, > virtualization@lists.linux-foundation.org, target-devel@vger.kernel.o= rg > Inviato: Mercoled=C3=AC, 6 febbraio 2013 10:51:34 > Oggetto: Re: [PATCH] tcm_vhost: Multi-queue support >=20 > On 02/06/2013 04:39 PM, Nicholas A. Bellinger wrote: > > On Wed, 2013-02-06 at 15:09 +0800, Asias He wrote: > >> On 02/06/2013 02:45 PM, Nicholas A. Bellinger wrote: > >>> On Wed, 2013-02-06 at 13:20 +0800, Asias He wrote: > >>>> This adds virtio-scsi multi-queue support to tcm_vhost. > >>>> > >>>> Guest side virtio-scsi multi-queue support can be found here: > >>>> > >>>> https://lkml.org/lkml/2012/12/18/166 > >>>> > >>>> Some initial perf numbers: > >>>> 1 queue, 4 targets, 1 lun per target > >>>> 4K request size, 50% randread + 50% randwrite: 127K/127k IOPS > >>>> > >>>> 4 queues, 4 targets, 1 lun per target > >>>> 4K request size, 50% randread + 50% randwrite: 181K/181k IOPS 4 VCPUs I suppose? Paolo