linux-kernel - Re: very poor ext3 write performance on big filesystems?

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Message-ID: <47BAED94.3040103@wpkg.org>
Date:	Tue, 19 Feb 2008 15:54:12 +0100
From:	Tomasz Chmielewski <mangoo@...g.org>
To:	Theodore Tso <tytso@....edu>, Andi Kleen <andi@...stfloor.org>,
	Tomasz Chmielewski <mangoo@...g.org>,
	LKML <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: very poor ext3 write performance on big filesystems?

Theodore Tso schrieb:

(...)

> The following ld_preload can help in some cases.  Mutt has this hack
> encoded in for maildir directories, which helps.

It doesn't work very reliable for me.

For some reason, it hangs for me sometimes (doesn't remove any files, rm 
-rf just stalls), or segfaults.


As most of the ideas here in this thread assume (re)creating a new 
filesystem from scratch - would perhaps playing with 
/proc/sys/vm/dirty_ratio and /proc/sys/vm/dirty_background_ratio help a bit?


-- 
Tomasz Chmielewski
http://wpkg.org
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