From: Edward Shishkin <edward.shishkin@gmail.com>
To: Jaroslav Fojtik <jafojtik@seznam.cz>
Cc: reiserfs-devel@vger.kernel.org
Subject: Re: Question about reiser performance - short system freezes
Date: Thu, 24 Feb 2011 19:29:24 +0100 [thread overview]
Message-ID: <4D66A384.9000005@gmail.com> (raw)
In-Reply-To: <4D65CEAF.31101.5A677E@jafojtik.seznam.cz>
On 02/24/2011 04:21 AM, Jaroslav Fojtik wrote:
> Dear Edward Shishkin,
>
>>> May be that my comment might be userfull for your reiser development:
>>>
>>> I am facing following performance issue. The reiser works without data loss,
>>> but system sometimes hangs for 15s, mouse cursor is frozen and after this
>>> period it continues to work without any problem. It is strange, because I have 6 cores
>>> and all of them seems to be locked and waiting for something.
>>>
>>> Hanging occurs during intensive file search like find, or first phase
>>> of rsync.
>>>
>>> It seems to me that both reiser3 and reiser4 suffer by this issue.
>>> I have found BKL inside reiser3, but reiser4 seems to be without BKL.
>>>
>>> It is also strange that OS resides on different partition that should not
>>> be affected by reiser locking.
>>>
>>> May be that it could be problem large say 600GB HDD partition. But these partitins
>>> are normal nowadays.
>>>
>>> Is there any idea how to overcome this issue?
>>>
>>
>> Which kernel version?
>
> I have tested these kernels: 2.6.32.11 and 2.6.34.
Hello Jaroslav.
It might be a regression that have been fixed in the latest
kernels. Consider upgrading to .37. If it doesn't disappear,
then please send the SysRq-w output.
Thanks,
Edward.
next prev parent reply other threads:[~2011-02-24 18:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-24 0:19 Question about reiser performance - short system freezes Jaroslav Fojtik
2011-02-24 12:07 ` Edward Shishkin
2011-02-24 3:21 ` Jaroslav Fojtik
2011-02-24 18:29 ` Edward Shishkin [this message]
2011-03-01 15:12 ` Re2: " Jaroslav Fojtik
2011-03-01 16:42 ` Edward Shishkin
2011-03-01 21:00 ` Re4: " Jaroslav Fojtik
2011-03-01 21:19 ` Nicolas Barbier
2011-03-01 21:23 ` Edward Shishkin
2011-03-01 21:24 ` Edward Shishkin
2011-03-03 21:26 ` Re6: " Jaroslav Fojtik
2011-03-03 22:09 ` Edward Shishkin
2011-03-03 23:24 ` Re8: Question about reiser performance - linux-2.6.37 crash reproduced Jaroslav Fojtik
2011-03-03 23:29 ` Edward Shishkin
2011-03-03 23:38 ` Re10: " Jaroslav Fojtik
2011-03-04 14:30 ` Edward Shishkin
2011-04-16 11:17 ` doiggl
[not found] ` <4D7161F7.2754.6FF32@jafojtik.seznam.cz>
2011-03-04 22:58 ` linux-2.6.37 crash reproduced - here is a screenshot Edward Shishkin
[not found] ` <4D7214C2.30303.1B55FC@jafojtik.seznam.cz>
2011-03-05 22:44 ` Re2: " Edward Shishkin
2011-03-09 22:16 ` Edward Shishkin
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