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SubjectRe: [PATCH net-next V2 0/3] basic in order support for vhost_net
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On 2019/1/9 下午4:05, Jason Wang wrote:
> Hi:
>
> This series implement basic in order feature support for
> vhost_net. This feature requires both driver and device to use
> descriptors in order which can simplify the implementation and
> optimizaton for both side. The series also implement a simple
> optimization that avoid read available ring. Test shows 10%
> performance improvement at most.
>
> More optimizations could be done on top.
>
> Changes from V1:
> - no code changes
> - add result of SMAP off


Just notice the patch works only for some specific case e.g a buffer
only contain one descriptor. Will respin.

Thanks


>
> Jason Wang (3):
> virtio: introduce in order feature bit
> vhost_net: support in order feature
> vhost: don't touch avail ring if in_order is negotiated
>
> drivers/vhost/net.c | 6 ++++--
> drivers/vhost/vhost.c | 19 ++++++++++++-------
> include/uapi/linux/virtio_config.h | 6 ++++++
> 3 files changed, 22 insertions(+), 9 deletions(-)
>

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