From: Ingo Molnar <mingo@elte.hu>
To: Florian Schmidt <mista.tapas@gmx.net>
Cc: Paul Davis <paul@linuxaudiosystems.com>,
Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
Lee Revell <rlrevell@joe-job.com>,
mark_h_johnson@raytheon.com, Bill Huey <bhuey@lnxw.com>,
Adam Heath <doogie@debian.org>,
Michal Schmidt <xschmi00@stud.feec.vutbr.cz>,
Fernando Pablo Lopez-Lezcano <nando@ccrma.stanford.edu>,
Karsten Wiese <annabellesgarden@yahoo.de>,
jackit-devel <jackit-devel@lists.sourceforge.net>,
Rui Nuno Capela <rncbc@rncbc.org>
Subject: Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4]
Date: Sat, 30 Oct 2004 15:15:07 +0200 [thread overview]
Message-ID: <20041030131507.GA5189@elte.hu> (raw)
In-Reply-To: <20041030005058.136fe94f@mango.fruits.de>
* Florian Schmidt <mista.tapas@gmx.net> wrote:
> and another one:
>
> preemption latency trace v1.0.7 on 2.6.9-mm1-RT-V0.5.14-rt
> -------------------------------------------------------
> latency: 225 us, entries: 36 (36) | [VP:0 KP:1 SP:1 HP:1 #CPUS:1]
> -----------------
> | task: jackd/1083, uid:1000 nice:0 policy:1 rt_prio:60
> -----------------
> => started at: try_to_wake_up+0x5a/0x110 <c01151ca>
> => ended at: finish_task_switch+0x31/0xc0 <c0115691>
> =======>
> 637 80000000 0.000ms (+0.000ms): (39) ((116))
> 637 80000000 0.000ms (+0.000ms): (1083) ((637))
> 637 80000000 0.000ms (+0.000ms): preempt_schedule (try_to_wake_up)
> 637 80000000 0.000ms (+0.000ms): preempt_schedule (__up_write)
> 637 00000000 0.000ms (+0.000ms): preempt_schedule (up_write_mutex)
> 637 80000000 0.000ms (+0.000ms): __schedule (preempt_schedule)
> 637 80000000 0.000ms (+0.000ms): profile_hit (__schedule)
> 637 80000000 0.000ms (+0.001ms): sched_clock (__schedule)
> 1083 80000000 0.002ms (+0.000ms): __switch_to (__schedule)
> 1083 80000000 0.002ms (+0.000ms): (637) ((1083))
> 1083 80000000 0.002ms (+0.000ms): (116) ((39))
> 1083 80000000 0.002ms (+0.000ms): finish_task_switch (__schedule)
> 1083 80000000 0.002ms (+0.000ms): trace_stop_sched_switched (finish_task_switch)
> 1083 80000000 0.002ms (+0.000ms): (1083) ((39))
> 1083 00000000 0.003ms (+0.000ms): bad_range (free_pages_bulk)
> 1083 00000000 0.003ms (+0.000ms): bad_range (free_pages_bulk)
> 1083 00000000 0.003ms (+0.000ms): _mutex_unlock_irqrestore (free_pages_bulk)
> 1083 00000000 0.003ms (+0.000ms): up_mutex (free_pages_bulk)
> 1083 00000000 0.004ms (+0.000ms): up_write_mutex (free_pages_bulk)
> 1083 00000000 0.004ms (+0.000ms): __up_write (up_write_mutex)
> 1083 80000000 0.004ms (+0.000ms): wake_up_process_mutex (__up_write)
> 1083 80000000 0.004ms (+0.000ms): try_to_wake_up (wake_up_process_mutex)
> 1083 80000000 0.004ms (+0.000ms): task_rq_lock (try_to_wake_up)
> 1083 80000000 0.004ms (+0.000ms): activate_task (try_to_wake_up)
> 1083 80000000 0.004ms (+0.000ms): sched_clock (activate_task)
> 1083 80000000 0.004ms (+0.000ms): recalc_task_prio (activate_task)
> 1083 80000000 0.004ms (+0.000ms): effective_prio (recalc_task_prio)
> 1083 80000000 0.004ms (+0.000ms): enqueue_task (activate_task)
> 1083 80000000 0.005ms (+0.000ms): (115) ((39))
> 1083 80000000 0.005ms (+0.006ms): (782) ((1083))
> 1083 00000000 0.011ms (+0.000ms): sys_gettimeofday (syscall_call)
> 1083 00000000 0.011ms (+0.000ms): user_trace_stop (sys_gettimeofday)
> 1083 80000000 0.012ms (+0.000ms): user_trace_stop (sys_gettimeofday)
> 1083 80000000 0.012ms (+0.000ms): update_max_trace (user_trace_stop)
> 1083 80000000 0.012ms (+0.000ms): _mmx_memcpy (update_max_trace)
> 1083 80000000 0.013ms (+0.000ms): kernel_fpu_begin (_mmx_memcpy)
should have mentioned that in the user-triggered modus you have to do
the latency measurement in userspace. It is only the trace that is
correct, for the time being. This trace shows what i'd expect a jackd
wakeup to look like normally: 13 usecs.
Ingo
next prev parent reply other threads:[~2004-10-30 13:14 UTC|newest]
Thread overview: 152+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1099008264.4199.4.camel@krustophenia.net>
2004-10-29 0:57 ` [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] Paul Davis
2004-10-29 2:10 ` Lee Revell
2004-10-29 8:02 ` Ingo Molnar
2004-10-29 8:21 ` Thomas Gleixner
2004-10-29 9:09 ` Ingo Molnar
2004-10-29 11:01 ` Paul Davis
2004-10-29 11:14 ` Ingo Molnar
2004-10-29 11:26 ` Paul Davis
2004-10-29 11:36 ` Ingo Molnar
2004-10-29 13:35 ` Paul Davis
2004-10-29 13:55 ` Ingo Molnar
2004-10-29 14:03 ` Paul Davis
2004-10-29 14:15 ` Ingo Molnar
2004-10-29 16:14 ` Ingo Molnar
2004-10-29 16:21 ` Ingo Molnar
2004-10-29 16:32 ` Florian Schmidt
2004-10-29 16:23 ` Ingo Molnar
2004-10-29 16:31 ` Ingo Molnar
2004-10-29 16:37 ` Ingo Molnar
2004-10-29 16:53 ` Ingo Molnar
2004-10-29 17:16 ` Florian Schmidt
2004-10-29 17:02 ` Ingo Molnar
2004-10-29 17:09 ` Ingo Molnar
2004-10-29 17:16 ` Ingo Molnar
2004-10-29 17:33 ` Florian Schmidt
2004-10-29 17:21 ` Ingo Molnar
2004-10-29 17:22 ` Ingo Molnar
2004-10-29 18:36 ` Florian Schmidt
2004-10-29 20:33 ` Ingo Molnar
2004-10-29 20:51 ` Paul Davis
2004-10-29 21:11 ` Ingo Molnar
2004-10-30 1:06 ` Paul Davis
2004-10-30 11:34 ` Ingo Molnar
2004-11-26 17:16 ` [Jackit-devel] " Jack O'Quin
2004-10-29 20:42 ` Ingo Molnar
2004-10-29 21:31 ` Florian Schmidt
2004-10-29 21:25 ` Ingo Molnar
2004-10-29 21:42 ` Lee Revell
2004-10-29 21:46 ` Ingo Molnar
2004-10-29 21:53 ` Lee Revell
2004-10-29 23:12 ` Lee Revell
2004-10-30 11:58 ` Ingo Molnar
2004-10-30 17:49 ` Lee Revell
2004-10-30 19:17 ` Ingo Molnar
2004-10-30 19:43 ` Lee Revell
2004-10-30 19:47 ` Florian Schmidt
2004-10-30 19:37 ` Ingo Molnar
2004-10-30 19:57 ` Florian Schmidt
2004-10-30 19:52 ` Lee Revell
2004-10-30 20:15 ` Florian Schmidt
2004-10-30 20:26 ` Lee Revell
2004-10-30 21:13 ` Florian Schmidt
2004-10-30 21:26 ` Lee Revell
2004-10-30 21:38 ` Florian Schmidt
2004-10-30 23:12 ` Lee Revell
2004-10-31 12:07 ` Ingo Molnar
2004-10-31 12:48 ` Ingo Molnar
2004-10-31 12:54 ` Lee Revell
2004-10-31 13:13 ` Ingo Molnar
2004-10-31 13:40 ` Ingo Molnar
2004-10-31 15:20 ` Florian Schmidt
2004-10-31 15:59 ` Florian Schmidt
2004-10-31 19:06 ` Florian Schmidt
2004-11-01 13:42 ` Ingo Molnar
2004-11-01 13:53 ` Ingo Molnar
2004-11-01 14:06 ` Ingo Molnar
2004-11-01 15:47 ` Thomas Gleixner
2004-11-01 17:55 ` Lee Revell
2004-11-01 17:58 ` Thomas Gleixner
2004-11-01 18:43 ` Ingo Molnar
2004-11-01 18:46 ` Ingo Molnar
2004-11-01 22:30 ` Florian Schmidt
2004-11-01 22:40 ` Bill Huey
2004-11-01 22:51 ` Florian Schmidt
2004-11-01 22:59 ` Bill Huey
2004-11-02 8:02 ` Ingo Molnar
2004-11-02 8:07 ` Ingo Molnar
2004-11-02 15:06 ` [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.6.8 Ingo Molnar
2004-11-02 17:52 ` K.R. Foley
2004-11-02 19:37 ` Ingo Molnar
2004-11-02 19:40 ` K.R. Foley
2004-11-02 19:24 ` Norberto Bensa
2004-11-02 19:35 ` Ingo Molnar
2004-11-02 23:09 ` Karsten Wiese
2004-11-03 1:12 ` Ingo Molnar
2004-11-03 10:15 ` Karsten Wiese
2004-11-01 17:04 ` [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] Rui Nuno Capela
2004-11-01 17:08 ` Thomas Gleixner
2004-11-01 20:00 ` Rui Nuno Capela
2004-11-01 17:24 ` K.R. Foley
2004-11-02 0:22 ` Michal Schmidt
2004-11-01 13:54 ` Paul Davis
2004-11-01 14:30 ` Ingo Molnar
2004-11-01 19:30 ` Paul Davis
2004-11-02 8:17 ` Ingo Molnar
2004-11-01 14:03 ` Florian Schmidt
2004-11-01 14:12 ` Ingo Molnar
2004-11-01 15:29 ` K.R. Foley
2004-11-02 23:41 ` [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.6] Remi Colinet
2004-11-03 1:04 ` Remi Colinet
2004-11-01 11:55 ` [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] Ingo Molnar
2004-11-01 12:37 ` Ingo Molnar
2004-11-01 12:35 ` Thomas Gleixner
2004-11-01 12:51 ` Ingo Molnar
2004-11-01 13:15 ` Ingo Molnar
2004-11-01 13:40 ` Florian Schmidt
2004-11-01 13:48 ` Ingo Molnar
2004-11-01 16:47 ` Rui Nuno Capela
2004-10-31 23:16 ` Michal Schmidt
2004-11-01 0:05 ` Magnus Määttä
2004-10-31 13:11 ` Ingo Molnar
2004-10-31 14:11 ` Florian Schmidt
2004-10-31 13:22 ` Ingo Molnar
2004-10-31 14:28 ` Florian Schmidt
2004-10-31 13:30 ` Ingo Molnar
2004-10-31 21:58 ` Rui Nuno Capela
2004-10-31 22:11 ` K.R. Foley
2004-10-31 2:20 ` Lee Revell
2004-10-31 10:00 ` Florian Schmidt
2004-10-31 12:09 ` Lee Revell
2004-10-31 12:19 ` Ingo Molnar
2004-10-31 12:35 ` Lee Revell
2004-10-31 12:39 ` Ingo Molnar
2004-10-30 20:05 ` Lee Revell
2004-10-30 20:29 ` Florian Schmidt
2004-10-30 0:15 ` Lee Revell
2004-10-29 22:31 ` Florian Schmidt
2004-10-29 22:50 ` Florian Schmidt
2004-10-30 13:15 ` Ingo Molnar [this message]
2004-10-30 17:53 ` Florian Schmidt
2004-10-30 3:36 ` Lee Revell
2004-10-30 3:48 ` Lee Revell
2004-10-30 11:16 ` Ingo Molnar
2004-10-30 17:44 ` Lee Revell
2004-10-30 11:28 ` Ingo Molnar
2004-10-30 11:33 ` Ingo Molnar
2004-10-30 13:16 ` Florian Schmidt
2004-10-30 1:10 ` Lee Revell
2004-10-30 1:15 ` Lee Revell
2004-10-29 8:59 ` Ingo Molnar
2004-10-29 9:29 ` Ingo Molnar
2004-10-29 13:48 ` Ingo Molnar
2004-10-29 14:19 ` Paul Davis
2004-10-29 14:27 ` Ingo Molnar
2004-10-29 14:31 ` Ingo Molnar
2004-10-29 14:38 ` Paul Davis
2004-10-29 19:33 ` Lee Revell
2004-10-29 19:35 ` Thomas Gleixner
2004-11-01 14:32 Mark_H_Johnson
2004-11-01 14:36 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2004-11-01 16:34 Mark_H_Johnson
2004-11-01 18:48 ` Ingo Molnar
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