From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH net-next V2 0/3] basic in order support for vhost_net
Date: Wed, 9 Jan 2019 20:19:58 +0800 [thread overview]
Message-ID: <93632cde-bfc6-a284-c40c-d544d7c12d7c@redhat.com> (raw)
In-Reply-To: <20190109080530.18572-1-jasowang@redhat.com>
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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next prev parent reply other threads:[~2019-01-09 12:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-09 8:05 [PATCH net-next V2 0/3] basic in order support for vhost_net Jason Wang
2019-01-09 8:05 ` [PATCH net-next V2 1/3] virtio: introduce in order feature bit Jason Wang
2019-01-09 8:05 ` [PATCH net-next V2 2/3] vhost_net: support in order feature Jason Wang
2019-01-09 8:05 ` [PATCH net-next V2 3/3] vhost: don't touch avail ring if in_order is negotiated Jason Wang
2019-01-09 12:19 ` Jason Wang [this message]
[not found] ` <20190109080530.18572-2-jasowang@redhat.com>
2019-01-09 14:27 ` [PATCH net-next V2 1/3] virtio: introduce in order feature bit Michael S. Tsirkin
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