From: Hans Reiser <reiser@namesys.com>
To: Daniel Egger <degger@fhm.edu>
Cc: Nikita Danilov <Nikita@Namesys.COM>,
Linux Kernel Mailinglist <linux-kernel@vger.kernel.org>,
reiserfs mailing list <reiserfs-list@namesys.com>
Subject: Re: Reiser4 status: benchmarked vs. V3 (and ext3)
Date: Mon, 28 Jul 2003 17:29:38 +0400 [thread overview]
Message-ID: <3F252542.3050703@namesys.com> (raw)
In-Reply-To: <1059397619.31053.27.camel@sonja>
Daniel Egger wrote:
>Am Mon, 2003-07-28 um 14.44 schrieb Hans Reiser:
>
>
>
>>>This looks fine for normal harddrives put on flash you'd probably like
>>>to write the data evenly over the free space in some already formatted
>>>section still leaving the oportunity to format some other sectors to not
>>>run out of space.
>>>
>>>
>
>
>
>>I was not able to parse the sentence above.;-)
>>
>>
>
>s/put/but/
>
>As already mentioned the flash chips have to be erased before they can
>be written. The erasesize is much larger than the typical block size
>which means that although a block doesn't contain valid data it still
>contains something which means that it cannot be written until it was
>erased. That's why JFFS2 is using garbage collection to reclaim unused
>but (at the moment) unusable space.
>
>
>
>>No, you could be more clever than that.
>>
>>
>
>Sure. :)
>
>
>
If you feel ambitious, try increasing the reiser4 node size to equal the
erase size. This requires changes to VM though.
--
Hans
next prev parent reply other threads:[~2003-07-28 13:18 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-23 21:02 Reiser4 status: benchmarked vs. V3 (and ext3) 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
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 [this message]
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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