All of lore.kernel.org
 help / color / mirror / Atom feed
From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
	netdev@vger.kernel.org
Subject: Re: performance regression in virtio-net in 2.6.32-rc4
Date: Wed, 28 Oct 2009 10:04:46 +1030	[thread overview]
Message-ID: <200910281004.46800.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20091026184835.GB26473@redhat.com>

On Tue, 27 Oct 2009 05:18:35 am Michael S. Tsirkin wrote:
> Hi!
> I noticed a performance regression in virtio net: going from
> 2.6.31 to 2.6.32-rc4 I see this, for guest to host communication:
...
> Size   Size    Size     Time     Throughput
> bytes  bytes   bytes    secs.    10^6bits/sec
> 
>  87380  16384  16384    10.20    7806.48
...
>  87380  16384  16384    10.00    6814.60

Hmm, needs a bisect I'd say.

Thanks,
Rusty.

  parent reply	other threads:[~2009-10-27 23:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-26 18:48 performance regression in virtio-net in 2.6.32-rc4 Michael S. Tsirkin
2009-10-27  9:41 ` Avi Kivity
2009-10-27  9:41 ` Avi Kivity
2009-10-27 23:34 ` Rusty Russell [this message]
2009-10-27 23:34 ` Rusty Russell
  -- strict thread matches above, loose matches on Subject: below --
2009-10-26 18:48 Michael S. Tsirkin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200910281004.46800.rusty@rustcorp.com.au \
    --to=rusty@rustcorp.com.au \
    --cc=kvm@vger.kernel.org \
    --cc=mst@redhat.com \
    --cc=netdev@vger.kernel.org \
    --cc=virtualization@lists.linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.