From: Ingo Molnar <mingo@elte.hu>
To: Anant Nitya <kernel@prachanda.info>
Cc: linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: bad networking related lag in v2.6.22-rc2
Date: Mon, 21 May 2007 12:20:09 +0200 [thread overview]
Message-ID: <20070521102009.GA12196@elte.hu> (raw)
In-Reply-To: <200705211544.58018.kernel@prachanda.hub>
* Anant Nitya <kernel@prachanda.info> wrote:
> Tcp:
> 5 connections established
hm, this does not explain the /proc/net/tcp overhead i think - although
it could be a red herring. Will have a closer look at your new trace.
if possible please try to generate the automatic softirq trace for
Thomas, and then a separate trace for the firefox/net-lag thing, using
trace-it-10sec.c. Btw., for the second trace, could you boot with
maxcpus=1? That would make the second trace quite a bit more
straightforward to analyze. You probably need both cpus to trigger the
softirq problem.
Ingo
next prev parent reply other threads:[~2007-05-21 10:21 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 17:45 [patch] CFS scheduler, -v13 Ingo Molnar
2007-05-17 21:47 ` Anant Nitya
2007-05-18 10:26 ` Ingo Molnar
2007-05-18 16:13 ` Anant Nitya
2007-05-19 21:16 ` Anant Nitya
2007-05-20 6:38 ` Ingo Molnar
2007-05-21 7:58 ` bad networking related lag in v2.6.22-rc2 Ingo Molnar
2007-05-21 8:03 ` Ingo Molnar
2007-05-21 8:05 ` Ingo Molnar
2007-05-21 8:12 ` Ingo Molnar
2007-05-21 8:29 ` David Miller
2007-05-21 10:09 ` Ingo Molnar
2007-05-21 10:14 ` Anant Nitya
2007-05-21 10:20 ` Ingo Molnar [this message]
2007-05-22 6:20 ` Anant Nitya
2007-05-21 19:40 ` Anant Nitya
2007-05-21 20:46 ` Ingo Molnar
2007-05-21 21:02 ` Patrick McHardy
2007-05-21 21:30 ` Patrick McHardy
2007-05-22 6:17 ` Anant Nitya
2007-05-22 6:22 ` Ingo Molnar
2007-05-23 5:40 ` Anant Nitya
2007-05-23 6:30 ` Ingo Molnar
2007-05-23 10:56 ` Patrick McHardy
2007-05-23 11:05 ` Ingo Molnar
2007-05-23 11:25 ` Herbert Xu
2007-05-23 11:33 ` Patrick McHardy
2007-05-23 15:00 ` Linus Torvalds
2007-05-23 17:16 ` Patrick McHardy
2007-05-23 11:40 ` Ingo Molnar
2007-05-23 21:30 ` David Miller
2007-05-24 5:41 ` Patrick McHardy
2007-05-24 6:40 ` David Miller
2007-05-24 7:12 ` Anant Nitya
2007-05-22 6:23 ` Ingo Molnar
2007-05-22 6:24 ` Ingo Molnar
2007-05-22 9:17 ` Patrick McHardy
2007-05-22 12:47 ` Anant Nitya
2007-05-21 8:25 ` David Miller
2007-05-21 8:28 ` Ingo Molnar
2007-05-21 8:30 ` David Miller
2007-05-21 15:57 ` [patch] CFS scheduler, -v13 Linus Torvalds
2007-05-22 22:06 ` Bill Davidsen
2007-05-23 5:45 ` Anant Nitya
2007-05-18 15:20 ` Michael Lothian
2007-05-18 15:56 ` Ingo Molnar
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