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Subject: Re: [PATCH 05/18] writeback: per task dirty rate limit
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Wu Fengguang <fengguang.wu@intel.com>
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Date: Wed, 07 Sep 2011 09:31:56 +0200
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On Wed, 2011-09-07 at 09:04 +0800, Wu Fengguang wrote:

> So the sqrt naturally leads to less overheads and more N tolerance for
> large memory servers, which have large (thresh-freerun) gaps.

Thanks, and as you say its an initial guess, later refined using patch
14.