From: Neil Brown <neilb@suse.de>
To: Roger Heflin <rheflin@atipa.com>
Cc: Willy Tarreau <w@1wt.eu>, Xin Zhao <uszhaoxin@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: What's the NFS OOM problem?
Date: Thu, 17 Aug 2006 15:04:29 +1000 [thread overview]
Message-ID: <17635.63709.848914.895135@cse.unsw.edu.au> (raw)
In-Reply-To: message from Roger Heflin on Tuesday August 15
On Tuesday August 15, rheflin@atipa.com wrote:
>
> I have noticed on SLES kernels that when the dirty_*ratios turned down it
> still uses alot more memory than it should work writeback buffers, it makes
> me think that with the default setting of 40% that it for some reason
> may be using all of memory and deadlocking. It does not seem like an
> NFS only issue, as I believe I have duplicated it with a fast lock
> setup.
We seem to have a little patch in SuSE kernels that might be making
the problem worse .... though I presume it was introduced for a
reason. I haven't managed to track what that reason was yet.
What is "a fast lock setup"?? I don't understand.
NeilBrown
next prev parent reply other threads:[~2006-08-17 5:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-08 22:24 What's the NFS OOM problem? Xin Zhao
2006-08-09 2:33 ` H. Peter Anvin
2006-08-10 4:57 ` Willy Tarreau
2006-08-10 21:53 ` Grant Coady
2006-08-11 0:33 ` Neil Brown
2006-08-11 3:57 ` Willy Tarreau
2006-08-11 4:24 ` Neil Brown
2006-08-11 8:48 ` Peter Zijlstra
2006-08-14 2:03 ` Neil Brown
2006-08-15 18:24 ` Roger Heflin
2006-08-17 5:04 ` Neil Brown [this message]
2006-08-17 13:29 ` Roger Heflin
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