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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/