From: Tom Vier <tmv@comcast.net>
To: Hans Reiser <reiser@namesys.com>
Cc: Linux-Kernel@Vger.Kernel.ORG,
Reiserfs developers mail-list <Reiserfs-Dev@namesys.com>,
Reiserfs mail-list <Reiserfs-List@namesys.com>
Subject: Re: [PATCH] updated reiser4 - reduced cpu usage for writes by writing more than 4k at a time (has implications for generic write code and eventually for the IO layer)
Date: Wed, 24 May 2006 13:53:12 -0400 [thread overview]
Message-ID: <20060524175312.GA3579@zero> (raw)
In-Reply-To: <44736D3E.8090808@namesys.com>
On Tue, May 23, 2006 at 01:14:54PM -0700, Hans Reiser wrote:
> underlying FS can be improved. Performance results show that the new
> code consumes 40% less CPU when doing "dd bs=1MB ....." (your hardware,
> and whether the data is in cache, may vary this result). Note that this
> has only a small effect on elapsed time for most hardware.
Write requests in linux are restricted to one page?
--
Tom Vier <tmv@comcast.net>
DSA Key ID 0x15741ECE
next prev parent reply other threads:[~2006-05-24 17:53 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 20:14 [PATCH] updated reiser4 - reduced cpu usage for writes by writing more than 4k at a time (has implications for generic write code and eventually for the IO layer) Hans Reiser
2006-05-23 20:26 ` Alexey Polyakov
2006-05-23 20:33 ` Michal Piotrowski
2006-05-24 14:39 ` Vladimir V. Saveliev
2006-06-08 10:45 ` Jan Engelhardt
2006-06-08 12:40 ` Vladimir V. Saveliev
2006-06-08 14:11 ` Jan Engelhardt
2006-05-24 17:53 ` Tom Vier [this message]
2006-05-24 17:55 ` Hans Reiser
2006-06-08 11:00 ` Jens Axboe
2006-06-08 11:26 ` Vladimir V. Saveliev
2006-06-08 11:35 ` Jens Axboe
2006-06-08 12:08 ` Vladimir V. Saveliev
2006-06-14 19:37 ` Hans Reiser
2006-06-08 12:10 ` Christoph Hellwig
2006-06-14 22:08 ` batched write Vladimir V. Saveliev
2006-06-17 17:04 ` Andrew Morton
2006-06-17 17:51 ` Hans Reiser
2006-06-18 11:20 ` Nix
2006-06-19 9:05 ` Hans Reiser
2006-06-19 11:32 ` Miklos Szeredi
2006-06-19 16:39 ` Hans Reiser
2006-06-19 17:35 ` Miklos Szeredi
2006-06-19 17:52 ` Akshat Aranya
2006-06-19 20:39 ` Hans Reiser
2006-06-19 16:27 ` Andreas Dilger
2006-06-19 16:51 ` Hans Reiser
2006-06-19 18:50 ` Andreas Dilger
2006-06-19 20:47 ` Hans Reiser
2006-06-20 0:01 ` David Chinner
2006-06-20 7:19 ` Hans Reiser
2006-06-20 7:26 ` Andrew Morton
2006-06-20 9:02 ` Steven Whitehouse
2006-06-20 16:26 ` Vladimir V. Saveliev
2006-06-20 17:29 ` Hans Reiser
2006-06-19 18:28 ` Vladimir V. Saveliev
2006-05-24 17:59 ` [PATCH] updated reiser4 - reduced cpu usage for writes by writing more than 4k at a time (has implications for generic write code and eventually for the IO layer) Hans Reiser
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