From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [PATCH v5 0/4] virtio: Use ioeventfd for virtqueue notify
Date: Mon, 13 Dec 2010 15:36:15 +0200 [thread overview]
Message-ID: <20101213133615.GB2731@redhat.com> (raw)
In-Reply-To: <20101213133538.GA2731@redhat.com>
On Mon, Dec 13, 2010 at 03:35:38PM +0200, Michael S. Tsirkin wrote:
> On Mon, Dec 13, 2010 at 01:11:27PM +0000, Stefan Hajnoczi wrote:
> > Fresh results:
> >
> > 192.168.0.1 - host (runs netperf)
> > 192.168.0.2 - guest (runs netserver)
> >
> > host$ src/netperf -H 192.168.0.2 -- -m 200
> >
> > ioeventfd=on
> > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.0.2
> > (192.168.0.2) port 0 AF_INET
> > Recv Send Send
> > Socket Socket Message Elapsed
> > Size Size Size Time Throughput
> > bytes bytes bytes secs. 10^6bits/sec
> > 87380 16384 200 10.00 1759.25
> >
> > ioeventfd=off
> > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.0.2
> > (192.168.0.2) port 0 AF_INET
> > Recv Send Send
> > Socket Socket Message Elapsed
> > Size Size Size Time Throughput
> > bytes bytes bytes secs. 10^6bits/sec
> >
> > 87380 16384 200 10.00 1757.15
> >
> > The results vary approx +/- 3% between runs.
> >
> > Invocation:
> > $ x86_64-softmmu/qemu-system-x86_64 -m 4096 -enable-kvm -netdev
> > type=tap,id=net0,ifname=tap0,script=no,downscript=no -device
> > virtio-net-pci,netdev=net0,ioeventfd=on|off -vnc :0 -drive
> > if=virtio,cache=none,file=$HOME/rhel6-autobench-raw.img
> >
> > I am running qemu.git with v5 patches, based off
> > 36888c6335422f07bbc50bf3443a39f24b90c7c6.
> >
> > Host:
> > 1 Quad-Core AMD Opteron(tm) Processor 2350 @ 2 GHz
> > 8 GB RAM
> > RHEL 6 host
> >
> > Next I will try the patches on latest qemu-kvm.git
> >
> > Stefan
>
> One interesting thing is that I put virtio-net earlier on
> command line.
Sorry I mean I put it after disk, you put it before.
> Since iobus scan is linear for now, I wonder if this might
> possibly matter.
>
> --
> MST
next prev parent reply other threads:[~2010-12-13 13:36 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-12 15:02 [Qemu-devel] [PATCH v5 0/4] virtio: Use ioeventfd for virtqueue notify Stefan Hajnoczi
2010-12-12 15:02 ` [Qemu-devel] [PATCH v5 1/4] virtio-pci: Rename bugs field to flags Stefan Hajnoczi
2010-12-12 15:02 ` [Qemu-devel] [PATCH v5 2/4] virtio-pci: Use ioeventfd for virtqueue notify Stefan Hajnoczi
2011-01-24 18:54 ` Kevin Wolf
2011-01-24 19:36 ` Michael S. Tsirkin
2011-01-24 19:48 ` Kevin Wolf
2011-01-24 19:47 ` Michael S. Tsirkin
2011-01-24 20:05 ` Kevin Wolf
2011-01-25 7:12 ` Stefan Hajnoczi
2011-01-25 9:49 ` Stefan Hajnoczi
2011-01-25 9:54 ` Stefan Hajnoczi
2011-01-25 11:27 ` Michael S. Tsirkin
2011-01-25 13:20 ` Stefan Hajnoczi
2011-01-25 14:07 ` Stefan Hajnoczi
2011-01-25 19:18 ` Anthony Liguori
2011-01-25 19:45 ` Stefan Hajnoczi
2011-01-25 19:51 ` Anthony Liguori
2011-01-25 19:59 ` Stefan Hajnoczi
2011-01-26 0:18 ` Anthony Liguori
2010-12-12 15:02 ` [Qemu-devel] [PATCH v5 3/4] virtio-pci: Don't use ioeventfd on old kernels Stefan Hajnoczi
2010-12-12 15:02 ` [Qemu-devel] [PATCH v5 4/4] docs: Document virtio PCI -device ioeventfd=on|off Stefan Hajnoczi
2010-12-12 15:14 ` [Qemu-devel] Re: [PATCH v5 0/4] virtio: Use ioeventfd for virtqueue notify Stefan Hajnoczi
2010-12-12 20:41 ` Michael S. Tsirkin
2010-12-12 20:42 ` Michael S. Tsirkin
2010-12-12 20:56 ` Michael S. Tsirkin
2010-12-12 21:09 ` Michael S. Tsirkin
2010-12-13 10:24 ` Stefan Hajnoczi
2010-12-13 10:38 ` Michael S. Tsirkin
2010-12-13 13:11 ` Stefan Hajnoczi
2010-12-13 13:35 ` Michael S. Tsirkin
2010-12-13 13:36 ` Michael S. Tsirkin [this message]
2010-12-13 14:06 ` Stefan Hajnoczi
2010-12-13 15:27 ` Stefan Hajnoczi
2010-12-13 16:00 ` Michael S. Tsirkin
2010-12-13 16:29 ` Stefan Hajnoczi
2010-12-13 16:30 ` Michael S. Tsirkin
2010-12-13 16:12 ` Michael S. Tsirkin
2010-12-13 16:28 ` Stefan Hajnoczi
2010-12-13 17:57 ` Stefan Hajnoczi
2010-12-13 18:52 ` Michael S. Tsirkin
2010-12-15 11:42 ` Stefan Hajnoczi
2010-12-15 11:48 ` Stefan Hajnoczi
2010-12-15 12:00 ` Michael S. Tsirkin
2010-12-15 12:14 ` Michael S. Tsirkin
2010-12-15 12:59 ` Stefan Hajnoczi
2010-12-16 16:40 ` Stefan Hajnoczi
2010-12-16 23:39 ` Michael S. Tsirkin
2010-12-19 14:49 ` Michael S. Tsirkin
2011-01-06 16:41 ` Stefan Hajnoczi
2011-01-06 17:04 ` Michael S. Tsirkin
2011-01-06 18:00 ` Michael S. Tsirkin
2011-01-07 8:56 ` Stefan Hajnoczi
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