Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267734AbUJCHGY (ORCPT ); Sun, 3 Oct 2004 03:06:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267739AbUJCHGY (ORCPT ); Sun, 3 Oct 2004 03:06:24 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:2250 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S267734AbUJCHGV (ORCPT ); Sun, 3 Oct 2004 03:06:21 -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: <1096786248.1837.4.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> <1096786248.1837.4.camel@krustophenia.net> Content-Type: text/plain Message-Id: <1096787179.1837.8.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Sun, 03 Oct 2004 03:06:20 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2228 Lines: 56 On Sun, 2004-10-03 at 02:50, Lee Revell wrote: > 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": > Finally, there's this one which makes no sense to me: preemption latency trace v1.0.7 on 2.6.9-rc2-mm4-VP-S7 ------------------------------------------------------- latency: 507 us, entries: 45 (45) | [VP:1 KP:1 SP:1 HP:1 #CPUS:1] ----------------- | task: events/0/3, uid:0 nice:-10 policy:0 rt_prio:0 ----------------- => started at: kernel_fpu_begin+0x15/0x70 => ended at: _mmx_memcpy+0x13a/0x180 =======> 00000001 0.000ms (+0.002ms): kernel_fpu_begin (_mmx_memcpy) 00010001 0.002ms (+0.000ms): do_IRQ (_mmx_memcpy) 00010001 0.002ms (+0.000ms): do_IRQ (<00000000>) [ timer interrupt stuff ] 00010001 0.024ms (+0.000ms): preempt_schedule (do_IRQ) 00000002 0.025ms (+0.000ms): do_softirq (do_IRQ) 00000002 0.025ms (+0.000ms): __do_softirq (do_softirq) 00000002 0.025ms (+0.000ms): wake_up_process (do_softirq) 00000002 0.026ms (+0.000ms): try_to_wake_up (wake_up_process) 00000002 0.026ms (+0.000ms): task_rq_lock (try_to_wake_up) 00000003 0.026ms (+0.000ms): activate_task (try_to_wake_up) 00000003 0.027ms (+0.000ms): sched_clock (activate_task) 00000003 0.027ms (+0.000ms): recalc_task_prio (activate_task) 00000003 0.028ms (+0.000ms): effective_prio (recalc_task_prio) 00000003 0.028ms (+0.000ms): enqueue_task (activate_task) 00000002 0.028ms (+0.478ms): preempt_schedule (try_to_wake_up) 00000001 0.507ms (+0.000ms): sub_preempt_count (_mmx_memcpy) 00000001 0.508ms (+0.000ms): update_max_trace (check_preempt_timing) 00000001 0.508ms (+0.000ms): _mmx_memcpy (update_max_trace) 00000001 0.508ms (+0.000ms): kernel_fpu_begin (_mmx_memcpy) 478 usecs in try_to_wake_up? 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/