Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266308AbUJCGux (ORCPT ); Sun, 3 Oct 2004 02:50:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267734AbUJCGux (ORCPT ); Sun, 3 Oct 2004 02:50:53 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:59592 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S266308AbUJCGuu (ORCPT ); Sun, 3 Oct 2004 02:50:50 -0400 Subject: Re: [patch] voluntary-preempt-2.6.9-rc2-mm4-S7 From: Lee Revell To: Ingo Molnar Cc: linux-kernel , "K.R. Foley" , Rui Nuno Capela In-Reply-To: <1096785457.1837.0.camel@krustophenia.net> References: <1094683020.1362.219.camel@krustophenia.net> <20040909061729.GH1362@elte.hu> <20040919122618.GA24982@elte.hu> <414F8CFB.3030901@cybsft.com> <20040921071854.GA7604@elte.hu> <20040921074426.GA10477@elte.hu> <20040922103340.GA9683@elte.hu> <20040923122838.GA9252@elte.hu> <20040923211206.GA2366@elte.hu> <20040924074416.GA17924@elte.hu> <20040928000516.GA3096@elte.hu> <1096785457.1837.0.camel@krustophenia.net> Content-Type: text/plain Message-Id: <1096786248.1837.4.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Sun, 03 Oct 2004 02:50:49 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2366 Lines: 61 On Sun, 2004-10-03 at 02:37, Lee Revell wrote: > On Mon, 2004-09-27 at 20:05, Ingo Molnar wrote: > > i've released the -S7 VP patch: > > > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc2-mm4-S7 > > > > This one was caused by amlat: And here's another produced by "lsof /foo": preemption latency trace v1.0.7 on 2.6.9-rc2-mm4-VP-S7 ------------------------------------------------------- latency: 399 us, entries: 608 (608) | [VP:1 KP:1 SP:1 HP:1 #CPUS:1] ----------------- | task: lsof/4347, uid:0 nice:0 policy:0 rt_prio:0 ----------------- => started at: unix_seq_start+0x10/0x50 => ended at: rtc_interrupt+0x294/0x450 =======> 00000001 0.000ms (+0.000ms): unix_seq_start (seq_read) 00000001 0.000ms (+0.039ms): unix_seq_idx (unix_seq_start) 00000001 0.040ms (+0.000ms): unix_seq_show (seq_read) 00000002 0.040ms (+0.001ms): sock_i_ino (unix_seq_show) 00000002 0.041ms (+0.000ms): seq_printf (unix_seq_show) 00000002 0.042ms (+0.002ms): vsnprintf (seq_printf) 00000002 0.045ms (+0.003ms): number (vsnprintf) 00000002 0.048ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.049ms (+0.001ms): number (vsnprintf) 00000002 0.050ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.051ms (+0.000ms): number (vsnprintf) 00000002 0.052ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.052ms (+0.000ms): number (vsnprintf) 00000002 0.053ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.053ms (+0.000ms): number (vsnprintf) 00000002 0.054ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.055ms (+0.000ms): number (vsnprintf) 00000002 0.056ms (+0.000ms): skip_atoi (vsnprintf) 00000002 0.056ms (+0.001ms): number (vsnprintf) 00000002 0.058ms (+0.000ms): seq_putc (unix_seq_show) 00000002 0.059ms (+0.000ms): seq_putc (unix_seq_show) 00000002 0.059ms (+0.000ms): seq_putc (unix_seq_show) 00000002 0.059ms (+0.000ms): seq_putc (unix_seq_show) 00000002 0.060ms (+0.000ms): seq_putc (unix_seq_show) 00000002 0.060ms (+0.000ms): seq_putc (unix_seq_show) ... Full trace: http://krustophenia.net/testresults.php?dataset=2.6.9-rc2-mm4-S7#/var/www/2.6.9-rc2-mm4-S7/lsof-latency-trace.txt Lee - 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/