From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.70-mm1
Date: Thu, 29 May 2003 13:30:15 -0700 [thread overview]
Message-ID: <39810000.1054240214@[10.10.2.4]> (raw)
In-Reply-To: <20030529115237.33c9c09a.akpm@digeo.com>
> OK, a 10x improvement isn't too bad. I'm hoping the gap between ext2 and
> ext3 is mainly idle time and not spinning-on-locks time.
>
>
>>
>> 2024927 267.3% total
>> 1677960 472.8% default_idle
>> 116350 0.0% .text.lock.transaction
>> 42783 0.0% do_get_write_access
>> 40293 0.0% journal_dirty_metadata
>> 34251 6414.0% __down
>> 27867 9166.8% .text.lock.attr
>
> Bah. In inode_setattr(), move the mark_inode_dirty() outside
> lock_kernel().
OK, will do.
>> 20016 2619.9% __wake_up
>> 19632 927.4% schedule
>> 12204 0.0% .text.lock.sched
>> 12128 0.0% start_this_handle
>> 10011 0.0% journal_add_journal_head
>
> hm, lots of context switches still.
I think that's ext3 busily kicking the living crap out of semaphores ;-)
See __down above ...
M.
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next prev parent reply other threads:[~2003-05-29 20:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-27 7:42 2.5.70-mm1 Andrew Morton
2003-05-27 10:38 ` 2.5.70-mm1 Marc-Christian Petersen
2003-05-27 20:33 ` 2.5.70-mm1 Ed Tomlinson
2003-05-27 20:49 ` 2.5.70-mm1 Andrew Morton
2003-05-27 23:05 ` 2.5.70-mm1 Ed Tomlinson
2003-05-28 17:10 ` 2.5.70-mm1 Mingming Cao
2003-05-28 19:44 ` 2.5.70-mm1 Andrew Morton
2003-05-29 6:23 ` 2.5.70-mm1 Martin J. Bligh
2003-05-29 18:40 ` 2.5.70-mm1 Martin J. Bligh
2003-05-29 18:52 ` 2.5.70-mm1 Andrew Morton
2003-05-29 20:30 ` Martin J. Bligh [this message]
2003-05-29 21:14 ` 2.5.70-mm1 Andrew Morton
2003-05-30 15:51 ` 2.5.70-mm1 Martin J. Bligh
2003-05-30 16:43 ` 2.5.70-mm1 Andrew Morton
2003-05-30 23:51 ` 2.5.70-mm1 Martin J. Bligh
2003-06-03 6:34 ` ext3 semaphore tracing Martin J. Bligh
2003-05-28 13:26 2.5.70-mm1 Downing, Thomas
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