From: David Miller <davem@davemloft.net>
To: jasowang@redhat.com
Cc: mst@redhat.com, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V3 0/2] vhost_net polling optimization
Date: Thu, 02 Jun 2016 12:08:06 -0700 (PDT) [thread overview]
Message-ID: <20160602.120806.2233781548139724198.davem@davemloft.net> (raw)
In-Reply-To: <1464760594-30326-1-git-send-email-jasowang@redhat.com>
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.
next prev parent reply other threads:[~2016-06-02 19:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-01 5:56 [PATCH V3 0/2] vhost_net polling optimization Jason Wang
2016-06-01 5:56 ` [PATCH V3 1/2] vhost_net: stop polling socket during rx processing Jason Wang
2016-06-07 12:23 ` Michael S. Tsirkin
2016-06-07 21:46 ` David Miller
2016-06-01 5:56 ` [PATCH V3 2/2] vhost_net: conditionally enable tx polling Jason Wang
2016-06-07 12:26 ` Michael S. Tsirkin
2016-06-08 6:48 ` Jason Wang
2016-06-02 19:08 ` David Miller [this message]
2016-06-03 13:03 ` [PATCH V3 0/2] vhost_net polling optimization Michael S. Tsirkin
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