linux-kernel - Re: Linux 2.6.29

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Message-ID: <20090327095852.09c41a43@lxorguk.ukuu.org.uk>
Date:	Fri, 27 Mar 2009 09:58:52 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>, David Rees <drees76@...il.com>,
	Jesper Krogh <jesper@...gh.cc>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.29

> userspace can do it quite easily.  Run a self-tuning script after
> installation and when the disk hardware changes significantly.

Which is "all the time" in some configurations. It really needs to be
self tuning internally based on the observed achieved rates (just as you
don't use a script to tune your network bandwidth each day)
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