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From: Mark <musicman529@yahoo.com>
To: xfs@oss.sgi.com
Subject: Fw: Re: XFS mkfs/mount options
Date: Wed, 18 Jun 2008 00:21:01 -0700 (PDT)	[thread overview]
Message-ID: <521591.99815.qm@web34506.mail.mud.yahoo.com> (raw)

To all,

It appears I have found a defect in my testing. Generally, the procedure has been something like:

create filesystem
mount filesystem and set owner/group
run benchmark
alter some condition (CPU speed or IRQ routing)
re-run benchmark
compare results

The second run is contaminated by caching effects from the first run. This accounts for the roughly 5% speedup I saw after enabling explicit IRQ routing. Once I corrected this oversight, the difference became statistical noise.

My apologies to all for this red herring.

-- 
Mark

"What better place to find oneself than
 on the streets of one's home village?"
      --Capt. Jean-Luc Picard, "Family"

                 reply	other threads:[~2008-06-18  7:20 UTC|newest]

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