Re: RFT: virtio_net: limit xmit polling

Michael,  

I am testing this too.
 I have finished one round of testing. But am running it again just to
confirm.
This time I will see if I can collect some exit stats too. Will post results
sometime this weekend.
I am just doing TCP_STREAM and TCP_MAERTS from guest to remote host.

Thanks,
Roopa


On 6/21/11 8:23 AM, "Tom Lendacky" [off-list ref] wrote:

On Sunday, June 19, 2011 05:27:00 AM Michael S. Tsirkin wrote:

quoted

quoted

OK, different people seem to test different trees.  In the hope to get
everyone on the same page, I created several variants of this patch so
they can be compared. Whoever's interested, please check out the
following, and tell me how these compare:

I'm in the process of testing these patches.  Base and v0 are complete
and v1 is near complete with v2 to follow.  I'm testing with a variety
of TCP_RR and TCP_STREAM/TCP_MAERTS tests involving local guest-to-guest
tests and remote host-to-guest tests.  I'll post the results in the next
day or two when the tests finish.

Thanks,
Tom

quoted

quoted

kernel:

git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git

virtio-net-limit-xmit-polling/base - this is net-next baseline to test
against virtio-net-limit-xmit-polling/v0 - fixes checks on out of capacity
virtio-net-limit-xmit-polling/v1 - previous revision of the patch
              this does xmit,free,xmit,2*free,free
virtio-net-limit-xmit-polling/v2 - new revision of the patch
              this does free,xmit,2*free,free

There's also this on top:
virtio-net-limit-xmit-polling/v3 -> don't delay avail index update
I don't think it's important to test this one, yet

Userspace to use: event index work is not yet merged upstream
so the revision to use is still this:
git://git.kernel.org/pub/scm/linux/kernel/git/mst/qemu-kvm.git
virtio-net-event-idx-v3