From: Aaron Porter <atporter@primate.net>
To: Andi Kleen <andi@firstfloor.org>
Cc: David Miller <davem@davemloft.net>,
Chris Snook <csnook@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: miserable performance of 2.6.21 under network load
Date: Tue, 24 Jul 2007 13:41:15 -0700 [thread overview]
Message-ID: <20070724204114.GF24543@primate.net> (raw)
In-Reply-To: <20070724191347.GB359@one.firstfloor.org>
On Tue, Jul 24, 2007 at 09:13:47PM +0200, Andi Kleen wrote:
> You have slab debugging enabled. That makes everything slow.
> It costs you ~66% of your CPU time. Disable it.
Past peak for the day, but this does look like the culprit. Thanks
to all who replied.
next prev parent reply other threads:[~2007-07-24 20:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-24 17:25 miserable performance of 2.6.21 under network load Aaron Porter
2007-07-24 18:48 ` Andi Kleen
2007-07-24 18:49 ` Aaron Porter
2007-07-24 19:13 ` Jeff Garzik
2007-07-24 19:13 ` Andi Kleen
2007-07-24 20:41 ` Aaron Porter [this message]
2007-07-24 19:22 ` Chris Snook
2007-07-24 19:45 ` David Miller
2007-07-24 18:49 ` Chris Snook
2007-07-24 18:53 ` Aaron Porter
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