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From: Anant Nitya <kernel@prachanda.info>
To: linux-kernel@vger.kernel.org
Cc: Patrick McHardy <kaber@trash.net>, Ingo Molnar <mingo@elte.hu>,
	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: Tue, 22 May 2007 11:47:55 +0530	[thread overview]
Message-ID: <200705221147.56571.kernel@prachanda.hub> (raw)
In-Reply-To: <46520F77.5000408@trash.net>

On Tuesday 22 May 2007 03:00:31 Patrick McHardy wrote:
> Patrick McHardy wrote:
> > Ingo Molnar wrote:
> >>* Anant Nitya <kernel@prachanda.info> wrote:
> >>>I am posting links to the information you asked for. One more thing,
> >>>after digging a bit more I found its QoS shaping that is making the
> >>>box crawl. Once I disabled the traffic shaping everything comes back
> >>>to smooth and normal. Shaping being done on very low speed residential
> >>>ADSL 256/64 Kbps connection. If you want me to post shaping rules,
> >>>please free to ask. BTW its a simple HTB/SFQ rules.
> >>
> >>[...]
> >>
> >>>http://cybertek.info/taitai/trace-to-ingo.txt.bz2
> >>
> >>thanks! This trace indeed includes the smoking gun, htb_dequeue() and
> >>__qdisc_run():
> >>
> >>[..]
> >
> > This looks like fallout from the switch to hrtimers. Anant, please
> > send me your HTB script, I'll try to reproduce it.
>
> I think I already found the bug, please try if this patch helps.

Sorry, but this patch is not helping here. I recompiled the kernel with this 
patch but same load pattern still make system to crawl.

Here is the link for script I use to shape traffic.

http://cybertek.info/taitai/adslbwopt.sh

Regards
Ananitya

-- 
Out of many thousands, one may endeavor for perfection, and of
those who have achieved perfection, hardly one knows Me in truth.
				-- Gita Sutra Of Mysticism

  reply	other threads:[~2007-05-22  6:18 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
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 [this message]
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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