From: Stephen Hemminger <shemminger@vyatta.com>
To: David Miller <davem@davemloft.net>
Cc: cl@linux-foundation.org, herbert@gondor.apana.org.au,
netdev@vger.kernel.org
Subject: Re: AIM9 regression
Date: Wed, 24 Sep 2008 14:34:19 -0700 [thread overview]
Message-ID: <20080924143419.467e0e76@extreme> (raw)
In-Reply-To: <20080924.125346.178957726.davem@davemloft.net>
On Wed, 24 Sep 2008 12:53:46 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:
> From: Christoph Lameter <cl@linux-foundation.org>
> Date: Wed, 24 Sep 2008 14:10:54 -0500
>
> > Stephen Hemminger wrote:
> >
> > > These loopback benchmarks are often more sensitive to scheduler than networking
> > > changes.
> >
> > Just ran a test with real NICs which show the same issues. I guess I need to
> > get familiar with the network stack and start hacking on it. Sigh.
>
> I feel your pain, I think people are being very unreasonable in their
> analysis of your numbers, and for this I want to personally apologize.
>
> It's clearly a networking issue in my eyes, and I wish my co-developers
> in networking would treat it as such instead of pushing the blame under
> the carpet and saying "scheduler", "SLUB", and all kinds of other bullshit
> without any facts on this specific case to back up such accusations.
Is this a one time change, or has networking been getting slower over time?
next prev parent reply other threads:[~2008-09-24 21:34 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-23 18:14 AIM9 regression Christoph Lameter
2008-09-23 20:36 ` Stephen Hemminger
2008-09-23 20:40 ` Christoph Lameter
2008-09-23 20:43 ` Christoph Lameter
2008-09-24 1:20 ` Jeff Garzik
2008-09-24 3:11 ` David Miller
2008-09-24 14:20 ` Christoph Lameter
2008-09-24 5:12 ` Herbert Xu
2008-09-24 5:18 ` David Miller
2008-09-24 15:16 ` Stephen Hemminger
2008-09-24 19:10 ` Christoph Lameter
2008-09-24 19:53 ` David Miller
2008-09-24 21:34 ` Stephen Hemminger [this message]
2008-09-24 22:26 ` David Miller
2008-09-24 19:36 ` David Miller
2008-09-29 14:24 ` Ilpo Järvinen
2008-09-29 14:54 ` Christoph Lameter
2008-09-29 15:12 ` Ilpo Järvinen
2008-09-29 15:36 ` Stephen Hemminger
2008-10-31 14:57 ` Ilpo Järvinen
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