netdev - Re: [PATCH net-next v5 0/4] net: vhost: improve performance when enable busyloop

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Message-ID: <CAMDZJNWqF95P1YBiu5X+gBbBOp2EVe380D2kzNmdes_4hBH3dw@mail.gmail.com>
Date:   Wed, 11 Jul 2018 11:49:02 +0800
From:   Tonghao Zhang <xiangxia.m.yue@...il.com>
To:     jasowang@...hat.com
Cc:     mst@...hat.com, makita.toshiaki@....ntt.co.jp,
        virtualization@...ts.linux-foundation.org,
        Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next v5 0/4] net: vhost: improve performance when
 enable busyloop

On Wed, Jul 11, 2018 at 10:56 AM Jason Wang <jasowang@...hat.com> wrote:
>
>
>
> On 2018年07月04日 12:31, xiangxia.m.yue@...il.com wrote:
> > From: Tonghao Zhang <xiangxia.m.yue@...il.com>
> >
> > This patches improve the guest receive and transmit performance.
> > On the handle_tx side, we poll the sock receive queue at the same time.
> > handle_rx do that in the same way.
> >
> > For more performance report, see patch 4.
> >
> > v4 -> v5:
> > fix some issues
> >
> > v3 -> v4:
> > fix some issues
> >
> > v2 -> v3:
> > This patches are splited from previous big patch:
> > http://patchwork.ozlabs.org/patch/934673/
> >
> > Tonghao Zhang (4):
> >    vhost: lock the vqs one by one
> >    net: vhost: replace magic number of lock annotation
> >    net: vhost: factor out busy polling logic to vhost_net_busy_poll()
> >    net: vhost: add rx busy polling in tx path
> >
> >   drivers/vhost/net.c   | 108 ++++++++++++++++++++++++++++----------------------
> >   drivers/vhost/vhost.c |  24 ++++-------
> >   2 files changed, 67 insertions(+), 65 deletions(-)
> >
>
> Hi, any progress on the new version?
>
> I plan to send a new series of packed virtqueue support of vhost. If you
> plan to send it soon, I can wait. Otherwise, I will send my series.
I rebase the codes. and find there is no improvement anymore, the
patches of  makita  may solve the problem. jason you may send your
patches, and I will do some research on busypoll.

> Thanks