Re: [PATCH net-next RFC 0/5] batched tx processing in vhost_net

On 2017年09月27日 03:26, Michael S. Tsirkin wrote:

On Fri, Sep 22, 2017 at 04:02:30PM +0800, Jason Wang wrote:

quoted

Hi:

This series tries to implement basic tx batched processing. This is
done by prefetching descriptor indices and update used ring in a
batch. This intends to speed up used ring updating and improve the
cache utilization. Test shows about ~22% improvement in tx pss.

quoted

Please review.

Jason Wang (5):
   vhost: split out ring head fetching logic
   vhost: introduce helper to prefetch desc index
   vhost: introduce vhost_add_used_idx()

Please squash these new APIs into where they are used.
This split-up just makes review harder for me as
I can't figure out how the new APIs are used.

Ok.

Thanks

quoted

   vhost_net: rename VHOST_RX_BATCH to VHOST_NET_BATCH

This is ok as a separate patch.

quoted

   vhost_net: basic tx virtqueue batched processing

  drivers/vhost/net.c   | 221 ++++++++++++++++++++++++++++----------------------
  drivers/vhost/vhost.c | 165 +++++++++++++++++++++++++++++++------
  drivers/vhost/vhost.h |   9 ++
  3 files changed, 270 insertions(+), 125 deletions(-)

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2.7.4