From: Tobias Diedrich <ranma@gmx.at>
To: Robert Love <rml@tech9.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Preemption Latency Measurement Tool
Date: Thu, 20 Sep 2001 22:01:21 +0200 [thread overview]
Message-ID: <20010920220121.A18683@router.ranmachan.dyndns.org> (raw)
In-Reply-To: <1000939458.3853.17.camel@phantasy>
In-Reply-To: <1000939458.3853.17.camel@phantasy>
Should the patch work with SMP systems ?
Here is what I get:
Worst 20 latency times of 1322 measured in this period.
usec cause mask start line/file address end line/file
988940 reacqBKL 0 1375/sched.c c0117ba1 772/sched.c
988940 spin_lock 0 129/file_table.c c013f500 135/page_alloc.c
988940 spin_lock 0 103/page_alloc.c c0136fd9 251/timer.c
988940 spin_lock 0 129/file_table.c c013f500 135/page_alloc.c
988940 spin_lock 0 63/fork.c c0117efc 135/page_alloc.c
988940 spin_lock 0 129/file_table.c c013f500 135/page_alloc.c
988940 spin_lock 0 129/file_table.c c013f500 135/page_alloc.c
988940 spin_lock 0 592/af_unix.c c02ddd88 594/af_unix.c
988940 spin_lock 0 43/fork.c c0117ddc 829/inode.c
988940 spin_lock 0 547/sched.c c0115bf5 606/signal.c
988940 spin_lock 0 770/sched.c c011641c 80/dcache.c
988940 spin_lock 0 36/dec_and_lock.c c0319573 280/time.c
988940 spin_lock 0 36/dec_and_lock.c c0319573 280/time.c
988940 BKL 0 714/ll_rw_blk.c c01eaec1 80/dcache.c
988939 spin_lock 0 592/af_unix.c c02ddd88 594/af_unix.c
988939 spin_lock 0 714/ll_rw_blk.c c01eaec1 80/dcache.c
988939 unknown 0 76/softirq.c c011f410 782/sched.c
988939 spin_lock 0 592/af_unix.c c02ddd88 1380/sched.c
988939 spin_lock 0 176/fork.c c0118608 696/namei.c
988939 spin_lock 0 1684/af_unix.c c02e0de6 734/dcache.c
And another one about 2 seconds after the last flush:
Worst 20 latency times of 579 measured in this period.
usec cause mask start line/file address end line/file
988939 spin_lock 0 592/af_unix.c c02ddd88 133/file_table.c
988930 spin_lock 0 770/sched.c c011641c 697/sched.c
988930 spin_lock 0 547/sched.c c0115bf5 133/file_table.c
988930 spin_lock 0 1512/es1371.c c02408e0 133/file_table.c
6613 spin_lock 1 547/sched.c c0115bf5 697/sched.c
6401 spin_lock 0 547/sched.c c0115bf5 647/irq.c
2557 spin_lock 0 547/sched.c c0115bf5 647/signal.c
833 spin_lock 0 547/sched.c c0115bf5 133/file_table.c
364 BKL 6 710/tty_io.c c01d1eed 712/tty_io.c
283 BKL 4 710/tty_io.c c01d1eed 280/time.c
243 BKL 0 59/ioctl.c c014fbe5 685/socket.c
231 BKL 4 710/tty_io.c c01d1eed 697/sched.c
218 spin_lock 0 798/vmscan.c c01366a5 857/vmscan.c
210 spin_lock 0 3169/tcp_input.c c02b5331 697/sched.c
191 spin_lock 2 468/netfilter.c c0285351 119/softirq.c
183 spin_lock 0 468/netfilter.c c0285351 280/time.c
176 spin_lock 0 468/netfilter.c c0285351 697/sched.c
168 BKL 0 26/readdir.c c014ff8c 28/readdir.c
134 ide0 0 585/irq.c c0108eb1 647/irq.c
134 BKL 0 980/inode.c c01691a3 997/inode.c
--
Tobias PGP: 0x9AC7E0BC
Hannover Fantreffen ML: mailto:fantreffen-request@mantrha.de?subject=subscribe
Manga & Anime Treff Hannover: http://www.mantrha.de/
next prev parent reply other threads:[~2001-09-20 20:01 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200109200758.f8K7wEG13675@zero.tech9.net>
2001-09-19 22:44 ` Robert Love
2001-09-20 1:40 ` Ignacio Vazquez-Abrams
2001-09-20 2:23 ` safemode
2001-09-20 1:13 ` David Lang
2001-09-20 2:57 ` Robert Love
2001-09-20 2:38 ` Robert Love
2001-09-20 6:31 ` Dieter Nützel
2001-09-20 6:31 ` Dieter Nützel
[not found] ` <20010920063143.424BD1E41A@Cantor.suse.de>
2001-09-20 6:41 ` Andrea Arcangeli
2001-09-20 7:57 ` Dieter Nützel
[not found] ` <200109200757.JAA60995@blipp.internet5.net>
2001-09-20 17:37 ` Roger Larsson
2001-09-20 21:29 ` Robert Love
2001-09-20 21:53 ` Dieter Nützel
2001-09-20 21:09 ` Robert Love
[not found] ` <20010920075751.6CA791E6B2@Cantor.suse.de>
2001-09-20 8:21 ` Andrea Arcangeli
2001-09-20 20:13 ` george anzinger
2001-09-20 20:38 ` Randy.Dunlap
2001-09-20 21:10 ` Robert Love
2001-09-20 21:35 ` Dieter Nützel
2001-09-20 22:03 ` Oliver Xymoron
2001-09-20 22:51 ` Dieter Nützel
2001-09-21 3:17 ` Robert Love
2001-09-21 15:48 ` george anzinger
2001-09-22 21:09 ` Dieter Nützel
2001-09-22 23:40 ` safemode
2001-09-22 23:46 ` Dieter Nützel
2001-09-23 0:15 ` safemode
2001-09-23 0:42 ` Dieter Nützel
2001-09-23 2:50 ` Robert Love
2001-09-23 3:14 ` george anzinger
2001-09-23 4:06 ` Dieter Nützel
2001-09-23 2:54 ` Robert Love
2001-09-27 0:02 ` [reiserfs-list] " Dieter Nützel
2001-09-23 2:58 ` Robert Love
[not found] ` <200109222340.BAA37547@blipp.internet5.net>
2001-09-23 0:38 ` Roger Larsson
2001-09-23 1:42 ` safemode
2001-09-23 3:02 ` Robert Love
2001-09-23 16:43 ` Roger Larsson
2001-09-23 2:44 ` Robert Love
2001-09-20 20:01 ` Tobias Diedrich [this message]
2001-09-20 20:27 ` Robert Love
2001-09-20 22:09 ` [PATCH] Preemption patch 2.4.9-ac12 Robert Love
2001-09-20 22:01 ` [PATCH] Preemption Latency Measurement Tool Robert Love
2001-09-22 3:57 ` Andre Pang
2001-09-22 6:10 ` Robert Love
2001-09-22 7:22 ` Andre Pang
2001-09-23 3:18 ` george anzinger
2001-09-23 3:21 ` Robert Love
2001-09-22 12:56 ` ksoftirqd? (Was: Re: [PATCH] Preemption Latency Measurement Tool) Roger Larsson
2001-09-22 13:14 ` Andrea Arcangeli
2001-09-22 20:51 ` Roger Larsson
2001-09-22 21:33 ` Andrea Arcangeli
2001-09-23 7:05 ` [PATCH] Preemption Latency Measurement Tool Robert Love
2001-09-23 12:03 ` Andre Pang
2001-09-23 18:31 ` Robert Love
[not found] <200109202253.RAA21082@waste.org>
2001-09-20 23:15 ` Oliver Xymoron
2001-09-21 0:42 ` Roger Larsson
2001-09-21 1:03 ` Alan Cox
2001-09-21 1:22 ` Andrea Arcangeli
2001-09-21 1:51 ` Rik van Riel
2001-09-21 1:38 ` Roger Larsson
2001-09-21 1:53 ` Roger Larsson
2001-09-21 2:08 ` Roger Larsson
2001-09-21 2:29 ` Rik van Riel
2001-09-21 16:24 ` Jussi Laako
2001-09-21 16:36 ` Alan Cox
2001-09-21 18:46 ` Thomas Sailer
2001-09-22 10:30 ` Jussi Laako
2001-09-21 16:18 ` Stefan Westerfeld
2001-09-21 20:18 ` Dieter Nützel
2001-09-21 21:47 ` Robert Love
2002-04-09 5:23 [PATCH] preemption latency measurement tool Robert Love
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