xfs
[Top] [All Lists]

Re: Fastest Chunk Size w/XFS For MD Software RAID = 1024k

To: David Chinner <dgc@xxxxxxx>
Subject: Re: Fastest Chunk Size w/XFS For MD Software RAID = 1024k
From: David Greaves <david@xxxxxxxxxxxx>
Date: Thu, 28 Jun 2007 08:53:54 +0100
Cc: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>, linux-raid@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, Alan Piszcz <ap@xxxxxxxxxxxxx>
In-reply-to: <20070628050837.GG989688@xxxxxxx>
References: <Pine.LNX.4.64.0706271918010.29111@xxxxxxxxxxxxxxxx> <Pine.LNX.4.64.0706271920350.29111@xxxxxxxxxxxxxxxx> <20070628050837.GG989688@xxxxxxx>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla-Thunderbird 2.0.0.4 (X11/20070618)
David Chinner wrote:
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?

I'm pretty sure he's using 10 - email a few days back...
Justin Piszcz wrote:
Running test with 10 RAPTOR 150 hard drives, expect it to take awhile until I get the results, avg them etc. :)

If so, how do you get a block read rate of 578MB/s from
4 drives? That's 145MB/s per drive....

Which gives a far more reasonable 60MB/s per drive...

David


<Prev in Thread] Current Thread [Next in Thread>