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
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=20070724204114.GF24543@primate.net \
--to=atporter@primate.net \
--cc=andi@firstfloor.org \
--cc=csnook@redhat.com \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.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.