Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268892AbUIHG6g (ORCPT ); Wed, 8 Sep 2004 02:58:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268899AbUIHG6J (ORCPT ); Wed, 8 Sep 2004 02:58:09 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:63188 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S268892AbUIHG4D (ORCPT ); Wed, 8 Sep 2004 02:56:03 -0400 Subject: Re: [patch] voluntary-preempt-2.6.9-rc1-bk12-R6 From: Lee Revell To: Ingo Molnar Cc: linux-kernel , felipe_alfaro@linuxmail.org, Florian Schmidt , "K.R. Foley" , Mark_H_Johnson@Raytheon.com In-Reply-To: <20040906110626.GA32320@elte.hu> References: <20040903120957.00665413@mango.fruits.de> <20040904195141.GA6208@elte.hu> <20040905140249.GA23502@elte.hu> <20040906110626.GA32320@elte.hu> Content-Type: text/plain Message-Id: <1094626562.1362.99.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Wed, 08 Sep 2004 02:56:03 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1429 Lines: 33 On Mon, 2004-09-06 at 07:06, Ingo Molnar wrote: > i've released the -R6 patch: > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc1-bk12-R6 I get these latencies when I cause the machine to swap by compiling a kernel with make -j32. They get bigger as the machine gets further into swap. Every 2.0s: head -60 /proc/latency_trace Wed Sep 8 02:51:40 2004 preemption latency trace v1.0.6 on 2.6.9-rc1-bk12-VP-R6 -------------------------------------------------- latency: 605 us, entries: 5 (5) [VP:1 KP:1 SP:1 HP:1 #CPUS:1] ----------------- | task: kswapd0/35, uid:0 nice:0 policy:0 rt_prio:0 ----------------- => started at: get_swap_page+0x23/0x490 => ended at: get_swap_page+0x13f/0x490 =======> 00000001 0.000ms (+0.606ms): get_swap_page (add_to_swap) 00000001 0.606ms (+0.000ms): sub_preempt_count (get_swap_page) 00000001 0.606ms (+0.000ms): update_max_trace (check_preempt_timing) 00000001 0.606ms (+0.000ms): _mmx_memcpy (update_max_trace) 00000001 0.607ms (+0.000ms): kernel_fpu_begin (_mmx_memcpy) 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/