| To: | Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Fastest Chunk Size w/XFS For MD Software RAID = 1024k |
| From: | David Chinner <dgc@xxxxxxx> |
| Date: | Thu, 28 Jun 2007 15:08:37 +1000 |
| Cc: | linux-raid@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, Alan Piszcz <ap@xxxxxxxxxxxxx> |
| In-reply-to: | <Pine.LNX.4.64.0706271920350.29111@p34.internal.lan> |
| References: | <Pine.LNX.4.64.0706271918010.29111@p34.internal.lan> <Pine.LNX.4.64.0706271920350.29111@p34.internal.lan> |
| Sender: | xfs-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.4.2.1i |
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 |
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