From: Matthias Schniedermeyer <ms@citd.de>
To: Stan Hoeppner <stan@hardwarefreak.com>
Cc: xfs@oss.sgi.com
Subject: Re: High latencies writing to a memory mapped file
Date: Tue, 27 Jul 2010 16:49:14 +0200 [thread overview]
Message-ID: <20100727144914.GA29349@citd.de> (raw)
In-Reply-To: <4C4EDEFD.7000401@hardwarefreak.com>
On 27.07.2010 08:28, Stan Hoeppner wrote:
> Matthias Schniedermeyer put forth on 7/27/2010 4:24 AM:
>
> > We have a linux-computer with samba to act as a fileserver for a few
> > Windows-Clients and ever since kernel 2.6.26 (Never happend with 2.6.25)
> > the server randomly "hangs" for a few seconds (Which is more of a
> > problem that drives people crazy).
>
> Can you supply any kinda of empirical data or logging that would suggest the
> problem lies with XFS? You've not given us much to go on except anecdote.
>
> Google "linux server hangs" and you'll find thousands of causes and solutions.
The "best" further anecdote i have is:
I cloned(*) the server, on identical hardware (ignoring HDDs), for
someone else with 2 major differences.
- no loop-aes, as they didn't need encryption.
- ext4 instead of xfs
That machine has currently an uptime of 180 days and i don't have a
single report of a "hang". (Which technically doesn't mean that the
machine doesn't have that same bug. Only that no one ever complained to
me)
For empirical data: I don't know how or where to start.
*:
In the best sense of the word.
As the first step i 'rsync'ed the "system"-HDD of our server to a new
HDD. ...
Bis denn
--
Real Programmers consider "what you see is what you get" to be just as
bad a concept in Text Editors as it is in women. No, the Real Programmer
wants a "you asked for it, you got it" text editor -- complicated,
cryptic, powerful, unforgiving, dangerous.
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next prev parent reply other threads:[~2010-07-27 14:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 14:47 High latencies writing to a memory mapped file Shawn Bohrer
2010-07-22 23:28 ` Dave Chinner
2010-07-26 22:09 ` Shawn Bohrer
2010-07-26 23:22 ` Dave Chinner
2010-08-03 22:03 ` Shawn Bohrer
2010-07-27 9:24 ` Matthias Schniedermeyer
2010-07-27 10:47 ` Emmanuel Florac
2010-07-27 11:27 ` Matthias Schniedermeyer
2010-07-27 13:06 ` Emmanuel Florac
2010-07-27 13:00 ` Stan Hoeppner
[not found] ` <4C4EDEFD.7000401@hardwarefreak.com>
2010-07-27 14:49 ` Matthias Schniedermeyer [this message]
2010-07-27 19:59 ` Kinzel, David
2010-07-27 21:02 ` Matthias Schniedermeyer
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