From: Jesse Barnes <jbarnes@engr.sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.8.1-mm3
Date: Fri, 20 Aug 2004 13:08:30 -0400 [thread overview]
Message-ID: <200408201308.30662.jbarnes@engr.sgi.com> (raw)
In-Reply-To: <200408201257.42064.jbarnes@engr.sgi.com>
On Friday, August 20, 2004 12:57 pm, Jesse Barnes wrote:
> I applied wli's per-cpu profiling patch, added some tweaks that he and I
> discussed on irc and things look pretty good. We can now profile all 512
> CPUs in the system w/o livelocking :)
>
> Here's the output part way through a kernbench run:
In the interest of consistency with my last run and to see if marcelo and
akpm's fixes made a difference, here's the top 30 profile hits:
[root@ascender root]# time readprofile -n -m System.map-2.6.8.1-mm3 | sort -nr
| head -30
120535656 total 18.6877
53156327 ia64_pal_call_static 276855.8698
52716600 default_idle 137282.8125
6122150 ia64_save_scratch_fpregs 95658.5938
6118803 ia64_load_scratch_fpregs 95606.2969
1918154 ia64_spinlock_contention 19980.7708
92550 collate_per_cpu_profiles 192.8125
22281 rcu_check_quiescent_state 58.0234
19673 file_move 87.8259
15470 file_kill 69.0625
15417 clear_page 96.3563
14668 __d_lookup 16.3705
12638 clear_page_tables 9.6326
12616 copy_page 49.2812
11772 atomic_dec_and_lock 45.9844
11690 memset 11.0701
11415 del_timer_sync 22.2949
10952 __copy_user 4.6884
9090 xfs_ilock 17.7539
9087 zap_pte_range 4.7328
8122 finish_task_switch 28.2014
7125 find_get_page 17.1274
6288 link_path_walk 0.6318
6047 get_zone_counts 15.7474
6045 __down_trylock 18.8906
5745 _pagebuf_find 3.9896
4873 xfs_trans_push_ail 3.1725
4613 current_kernel_time 24.0260
4200 xfs_iaccess 4.1016
4199 fd_install 14.5799
real 1m32.766s
user 0m0.191s
sys 1m32.592s
next prev parent reply other threads:[~2004-08-20 17:09 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-20 10:19 2.6.8.1-mm3 Andrew Morton
2004-08-20 11:25 ` [PATCH] 2.6.8.1-mm3, fix visws kernel build Andrey Panin
2004-08-20 11:46 ` 2.6.8.1-mm3 Russell King
2004-08-20 11:47 ` [PATCH] 2.6.8.1-mm3, fix qla1280 build on visws Andrey Panin
2004-08-20 15:44 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-20 16:57 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-20 17:08 ` Jesse Barnes [this message]
2004-08-20 18:55 ` 2.6.8.1-mm3 Andrew Morton
2004-08-20 19:56 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-20 20:02 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-20 23:31 ` 2.6.8.1-mm3 Anton Blanchard
2004-08-21 0:03 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-21 7:04 ` 2.6.8.1-mm3 Martin J. Bligh
2004-08-21 15:22 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-21 19:59 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-21 20:24 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-21 20:35 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-23 9:02 ` 2.6.8.1-mm3 David Mosberger
2004-08-23 16:27 ` 2.6.8.1-mm3 wli
2004-08-23 18:18 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-24 7:24 ` 2.6.8.1-mm3 David Mosberger
2004-08-20 18:04 ` 2.6.8.1-mm3 lockmeter on 512p w/kernbench Jesse Barnes
2004-09-10 16:25 ` Greg Edwards
2004-08-20 18:46 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-21 1:26 ` 2.6.8.1-mm3 Nick Piggin
2004-08-21 20:05 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-22 1:27 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-22 2:11 ` 2.6.8.1-mm3 Nick Piggin
2004-08-22 15:44 ` 2.6.8.1-mm3 Jesse Barnes
2004-08-20 17:38 ` 2.6.8.1-mm3 (build failture w/ CONFIG_NUMA) mita akinobu
2004-08-20 17:55 ` Jesse Barnes
2004-08-20 18:12 ` 2.6.8.1-mm3 (compile stats) John Cherry
2004-08-21 18:54 ` Herbert Poetzl
2004-08-21 17:37 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-22 13:02 ` 2.6.8.1-mm3 William Lee Irwin III
2004-08-21 18:51 ` 2.6.8.1-mm3 R. J. Wysocki
2004-08-22 4:32 ` 2.6.8.1-mm3 Thomas Davis
2004-08-22 4:48 ` 2.6.8.1-mm3 Andrew Morton
2004-08-22 4:58 ` 2.6.8.1-mm3 Nick Piggin
2004-08-22 6:26 ` 2.6.8.1-mm3 Thomas Davis
2004-08-22 6:51 ` 2.6.8.1-mm3 Pete Zaitcev
2004-08-22 15:11 ` 2.6.8.1-mm3 Bartlomiej Zolnierkiewicz
-- strict thread matches above, loose matches on Subject: below --
2004-08-21 14:43 2.6.8.1-mm3 Mikael Pettersson
2004-08-21 16:02 ` 2.6.8.1-mm3 James Bottomley
2004-08-21 17:15 2.6.8.1-mm3 Mikael Pettersson
2004-08-21 18:38 2.6.8.1-mm3 Mikael Pettersson
2004-08-21 19:14 ` 2.6.8.1-mm3 Patrick Mansfield
2004-08-21 19:24 ` 2.6.8.1-mm3 James Bottomley
2004-08-21 21:47 ` 2.6.8.1-mm3 Matthew Wilcox
2004-08-25 3:50 ` 2.6.8.1-mm3 James Bottomley
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