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Re: [PATCH] xfs_repair: multithread phase 2

To: xfs@xxxxxxxxxxx
Subject: Re: [PATCH] xfs_repair: multithread phase 2
From: Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 10 Jan 2011 08:57:52 +0100
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
In-reply-to: <1294620248-17098-1-git-send-email-david@xxxxxxxxxxxxx>
Organization: it-management http://it-management.at
References: <1294620248-17098-1-git-send-email-david@xxxxxxxxxxxxx>
User-agent: KMail/1.13.5 (Linux/2.6.37-zmi; KDE/4.4.4; x86_64; ; )
On Montag, 10. Januar 2011 Dave Chinner wrote:
> This patch uses 32-way threading which results in no noticable
> slowdown on single SATA drives with NCQ, but results in ~10x
> reduction in runtime on a 12 disk RAID-0 array.

Is the fixed 32-way number reasonable, or shouldn't that be "number of 
available cpu cores"-way? Why threading when you have a single core cpu?

-- 
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Michael Monnerie, Ing. BSc

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