Date: Wed, 24 May 2006 13:53:12 -0400
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)
Message-ID: <20060524175312.GA3579@zero>
Reply-To: Tom Vier <tmv@comcast.net>
References: <44736D3E.8090808@namesys.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <44736D3E.8090808@namesys.com>
User-Agent: Mutt/1.5.9i
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 695
Lines: 16

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