netdev - Re: Performance regression with virtio

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Date:   Mon, 31 Jul 2017 11:38:00 -0700
From:   Euan Kemp <euan.kemp@...eos.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     seth.forshee@...onical.com, netdev@...r.kernel.org
Subject: Re: Performance regression with virtio_net

On Mon, Jul 31, 2017 at 04:26:08PM +0300, Michael S. Tsirkin wrote:
> I kept this around unchanged from
> ab7db91705e95ed1bba1304388936fccfa58c992.  That commit had an internal
> reason not to account for that space: not enough bits to do it.  No
> longer true so let's account for length exactly.  I'll send a proper
> patch after a bit of testing, would appreciate reports reports of
> whether this helps very much.

I can confirm your patch fixes the issue for me.

- Euan