From: David Chinner <dgc@sgi.com>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: linux-raid@vger.kernel.org, xfs@oss.sgi.com,
Alan Piszcz <ap@solarrain.com>
Subject: Re: Fastest Chunk Size w/XFS For MD Software RAID = 1024k
Date: Thu, 28 Jun 2007 15:08:37 +1000 [thread overview]
Message-ID: <20070628050837.GG989688@sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0706271920350.29111@p34.internal.lan>
On Wed, Jun 27, 2007 at 07:20:42PM -0400, Justin Piszcz wrote:
> For drives with 16MB of cache (in this case, raptors).
That's four (4) drives, right?
If so, how do you get a block read rate of 578MB/s from
4 drives? That's 145MB/s per drive....
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
next prev parent reply other threads:[~2007-06-28 5:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-27 23:20 Fastest Chunk Size w/XFS For MD Software RAID = 1024k Justin Piszcz
2007-06-27 23:20 ` Justin Piszcz
2007-06-27 23:24 ` Justin Piszcz
2007-06-28 5:08 ` David Chinner [this message]
2007-06-28 7:53 ` David Greaves
2007-06-28 8:07 ` Justin Piszcz
[not found] ` <46832E60.9000006@rabbit.us>
2007-06-28 8:07 ` Justin Piszcz
[not found] ` <46837056.4050306@rabbit.us>
2007-06-28 8:27 ` Justin Piszcz
2007-06-28 22:05 ` David Chinner
2007-06-28 9:05 ` Matti Aarnio
2007-06-28 13:27 ` Jon Nelson
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