From: Just Marc <marc@corky.net>
To: linux-kernel@vger.kernel.org
Subject: Re: file system for solid state disks
Date: Sat, 25 Aug 2007 09:41:26 +0100 [thread overview]
Message-ID: <46CFEB36.9020806@corky.net> (raw)
Hi,
It's important to note that disk-replacement type SSDs perform much
better with very small block operations, generally 512 bytes. So the
lower your file system block size, the better -- this will be the single
most significant performance tweak one should do. This is true for the
benchmarks I've seen where the difference between 4KB and 512Byte block
sizes was almost 100%. YMMV -- always benchmark.
On SSDs which contain built in wear leveling, pretty much any file
system can be used. For SSDs that lack such low level housekeeping,
use stuff like JFFS2.
Marc
next reply other threads:[~2007-08-25 9:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-25 8:41 Just Marc [this message]
2007-08-30 18:25 ` file system for solid state disks Jan Engelhardt
2007-08-30 18:26 ` Just Marc
-- strict thread matches above, loose matches on Subject: below --
2007-08-23 8:55 Daniel J Blueman
2007-08-23 12:45 ` James Courtier-Dutton
2007-08-23 12:56 ` Daniel J Blueman
[not found] ` <20070823134359.GB5576@mail.ustc.edu.cn>
2007-08-23 13:43 ` Fengguang Wu
2007-08-23 15:09 ` Daniel J Blueman
2007-09-05 12:34 ` Denys Vlasenko
2007-09-05 12:56 ` linux-os (Dick Johnson)
2007-09-05 13:04 ` Manu Abraham
2007-08-23 5:01 Richard Ballantyne
2007-08-23 5:52 ` Jan Engelhardt
2007-08-23 10:26 ` Theodore Tso
2007-08-23 11:25 ` Jens Axboe
2007-08-29 17:36 ` Bill Davidsen
2007-08-29 17:57 ` Jens Axboe
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