Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757351AbXEVGVS (ORCPT ); Tue, 22 May 2007 02:21:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760810AbXEVGU4 (ORCPT ); Tue, 22 May 2007 02:20:56 -0400 Received: from d061844a.dreamhost.com ([208.97.132.74]:49986 "EHLO spaceymail-a4.g.dreamhost.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1760226AbXEVGUz (ORCPT ); Tue, 22 May 2007 02:20:55 -0400 From: Anant Nitya Organization: Prachanda Hub To: linux-kernel@vger.kernel.org Subject: Re: bad networking related lag in v2.6.22-rc2 Date: Tue, 22 May 2007 11:50:34 +0530 User-Agent: KMail/1.9.6 Cc: Ingo Molnar , Linus Torvalds , Andrew Morton , Thomas Gleixner , "David S. Miller" References: <20070517174533.GA538@elte.hu> <200705211544.58018.kernel@prachanda.hub> <20070521102009.GA12196@elte.hu> In-Reply-To: <20070521102009.GA12196@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705221150.35774.kernel@prachanda.hub> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1210 Lines: 32 On Monday 21 May 2007 15:50:09 Ingo Molnar wrote: > * Anant Nitya 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 here is the link for new trace with maxcpus=1. http://cybertek.info/taitai/trace-it-10sec-to-ingo-with-maxcpus=1.bz2 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/