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    SubjectRe: [PATCH net-next RFC 0/5] batched tx processing in vhost_net
    On Fri, Sep 22, 2017 at 04:02:30PM +0800, Jason Wang wrote:
    > 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.




    > 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.


    > vhost_net: rename VHOST_RX_BATCH to VHOST_NET_BATCH

    This is ok as a separate patch.

    > 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(-)
    >
    > --
    > 2.7.4

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