Re: [kvm-devel] [PATCH] virtio_net tx performance fix

2008-01-28 Thread Anthony Liguori
Dor Laor wrote: > On Mon, 2008-01-28 at 09:32 -0600, Anthony Liguori wrote: > >> Hi Dor, >> >> How are you measuring performance? The numbers I've gotten with netperf >> before and after your patch are: >> >> tx - 647.27mbit >> rx - 89.22 >> >> tx - 27.82 >> rx - 79.93 >> >> > > I've been

Re: [kvm-devel] [PATCH] virtio_net tx performance fix

2008-01-28 Thread Dor Laor
On Mon, 2008-01-28 at 09:32 -0600, Anthony Liguori wrote: > Hi Dor, > > How are you measuring performance? The numbers I've gotten with netperf > before and after your patch are: > > tx - 647.27mbit > rx - 89.22 > > tx - 27.82 > rx - 79.93 > I've been testing with iperf (patched with Ingo's

Re: [kvm-devel] [PATCH] virtio_net tx performance fix

2008-01-28 Thread Anthony Liguori
Dor Laor wrote: > On Mon, 2008-01-28 at 09:32 -0600, Anthony Liguori wrote: > >> Hi Dor, >> >> How are you measuring performance? The numbers I've gotten with netperf >> before and after your patch are: >> >> tx - 647.27mbit >> rx - 89.22 >> >> tx - 27.82 >> rx - 79.93 >> >> > > I've been

Re: [kvm-devel] [PATCH] virtio_net tx performance fix

2008-01-28 Thread Anthony Liguori
Hi Dor, How are you measuring performance? The numbers I've gotten with netperf before and after your patch are: tx - 647.27mbit rx - 89.22 tx - 27.82 rx - 79.93 So this patch is pretty much killing performance for netperf. Dor Laor wrote: > There was a problem with the location of the notif