From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Bernd Eckenfels <ecki@lina.inka.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Reiser4 status: benchmarked vs. V3 (and ext3)
Date: 27 Jul 2003 16:49:12 +0100 [thread overview]
Message-ID: <1059320952.13191.12.camel@dhcp22.swansea.linux.org.uk> (raw)
In-Reply-To: <E19gnTj-00005f-00@calista.inka.de>
On Sul, 2003-07-27 at 16:30, Bernd Eckenfels wrote:
> why is jffs2 so slow, if the cpu overhead can be totally neglected when
> writing to such slow media? I would asume a FS whic his optimized for not
> wearing out flash cards would reduce the IOs to the absolute minimum and
> therefore be fast be definition?
Flash cards are -slow-. Also jffs2 is mostly synchronous so it writes
the long bit by bit. The flash wear is on erase not write. You could
certainly teach jffs2 a bit more about batching writes. The other issue
with jffs2 is startup because it is a log you have to read the entire
log to know what state you are in
next prev parent reply other threads:[~2003-07-27 15:37 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-23 21:02 Hans Reiser
2003-07-24 4:26 ` Tupshin Harper
2003-07-24 4:31 ` Shawn
2003-07-24 4:56 ` Tupshin Harper
2003-07-24 5:21 ` Shawn
2003-07-24 5:33 ` Shawn
2003-07-24 11:10 ` Nikita Danilov
2003-07-24 15:10 ` Tupshin Harper
2003-07-24 15:26 ` Larry McVoy
2003-07-24 15:32 ` Tupshin Harper
2003-07-24 15:54 ` Larry McVoy
2003-07-24 15:32 ` Shawn
2003-07-27 12:28 ` Hans Reiser
2003-07-27 12:45 ` Tomas Szepe
2003-07-27 14:01 ` Hans Reiser
2003-07-27 15:04 ` Gene Heskett
2003-07-24 15:59 ` Daniel Egger
2003-07-24 17:07 ` Nikita Danilov
2003-07-24 21:10 ` Tupshin Harper
2003-07-25 12:57 ` Nikita Danilov
2003-07-25 0:39 ` Daniel Egger
2003-07-25 13:02 ` Nikita Danilov
2003-07-25 14:20 ` Daniel Egger
2003-07-25 14:39 ` Yury Umanets
2003-07-26 1:08 ` Daniel Egger
2003-07-26 7:19 ` Yury Umanets
2003-07-26 14:13 ` Daniel Egger
2003-07-26 14:54 ` Yury Umanets
2003-07-26 15:21 ` Daniel Egger
2003-07-27 3:28 ` Valdis.Kletnieks
2003-07-27 10:30 ` Yury Umanets
2003-07-27 11:05 ` Daniel Egger
2003-07-27 11:46 ` Yury Umanets
2003-08-08 14:01 ` David Woodhouse
2003-08-08 14:28 ` Bernd Eckenfels
2003-08-08 23:58 ` David Woodhouse
2003-08-09 0:29 ` Bernd Eckenfels
2003-08-09 0:38 ` David Woodhouse
2003-07-27 13:31 ` Hans Reiser
2003-07-27 14:13 ` Yury Umanets
2003-07-27 13:28 ` Hans Reiser
2003-07-27 14:10 ` Daniel Egger
2003-07-27 14:15 ` Yury Umanets
2003-08-13 20:12 ` Bill Davidsen
2003-08-14 5:04 ` Yury Umanets
2003-08-14 14:10 ` David Woodhouse
2003-08-15 11:15 ` Yury Umanets
2003-08-15 15:28 ` Bill Davidsen
2003-08-15 15:53 ` David Woodhouse
2003-08-14 13:58 ` David Woodhouse
2003-07-27 15:30 ` Bernd Eckenfels
2003-07-27 15:49 ` Alan Cox [this message]
2003-08-08 13:23 ` David Woodhouse
2003-07-28 11:30 ` Hans Reiser
2003-07-26 17:14 ` Jussi Laako
2003-07-27 13:35 ` Hans Reiser
2003-08-08 14:08 ` David Woodhouse
2003-07-27 12:59 ` Hans Reiser
2003-07-27 14:16 ` Daniel Egger
2003-07-27 15:32 ` Bernd Eckenfels
2003-08-08 14:29 ` David Woodhouse
2003-07-28 12:44 ` Hans Reiser
2003-07-28 13:06 ` Daniel Egger
2003-07-28 13:29 ` Hans Reiser
2003-07-28 13:48 ` Hans Reiser
2003-07-27 12:38 ` Hans Reiser
2003-07-26 8:33 ` Andrew Morton
2003-07-27 13:24 ` Hans Reiser
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