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Re: Fragmentation Issue We Are Having

To: xfs@xxxxxxxxxxx
Subject: Re: Fragmentation Issue We Are Having
From: Richard Scobie <richard@xxxxxxxxxxx>
Date: Fri, 20 Apr 2012 07:54:50 +1200
Cc: b.candler@xxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv: Gecko/20080313 SeaMonkey/1.1.9
Brian Candler wrote:


Ah, that's new to me. So with inode32 and
  sysctl fs.xfs.rotorstep=255
you can get roughly the same locality benefit for sequentially-written files
as inode64? (Aside: if you have two processes writing files to two different
directories, will they end up mixing their files in the same AG? That
could hurt performance at readback time if reading them sequentially)


The "filestreams" mount option may be of use here, see:


and page 17 of:




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