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Re: optimizing raid performance with xfs

To: linux-xfs@xxxxxxxxxxx
Subject: Re: optimizing raid performance with xfs
From: Wessel Dankers <wsl@xxxxxxxxxxxx>
Date: Wed, 19 Mar 2003 21:57:01 +0100
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On 2003-03-19 15:30:58-0500, Joshua Baker-LePain wrote:
> I've got another 3ware based system that's similar to yours (two cards 
> with a software stripe), and I found that increasing the chunk-size of the 
> stripe increased performance (at the cost of CPU load) -- I'm using 4096k 
> in production.

In theory you should use a small stripe size for large files (parallellism
for sequential access patterns) and a large stripe size for small files
(low latency for random access). Of course YMMV so do test it out with your
own specific workload (as opposed to a generic benchmark like Bonnie++).

HTH,

-- 
Wessel Dankers <wsl@xxxxxxxxxxxx>


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