Re: [PATCH V3 0/2] vhost_net polling optimization

David Miller
2016-06-02T19:08:06Z

From: Jason Wang <jasowang@redhat.com>
Date: Wed, 1 Jun 2016 01:56:32 -0400

> This series tries to optimize vhost_net polling at two points:
>
> - Stop rx polling for reduicng the unnecessary wakeups during
> handle_rx().
> - Conditonally enable tx polling for reducing the unnecessary
> traversing and spinlock touching.
>
> Test shows about 17% improvement on rx pps.
>
> Please review
>
> Changes from V2:
> - Don't enable rx vq if we meet an err or rx vq is empty
> Changes from V1:
> - use vhost_net_disable_vq()/vhost_net_enable_vq() instead of open
> coding.
> - Add a new patch for conditionally enable tx polling.

Michael, please review this patch series.

Thanks.