Date: Sun, 28 Mar 2004 12:32:40 -0800
From: Andrew Morton <akpm@osdl.org>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: B.Zolnierkiewicz@elka.pw.edu.pl, axboe@suse.de, wli@holomorphy.com,
       nickpiggin@yahoo.com.au, linux-ide@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] speed up SATA
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Jeff Garzik <jgarzik@pobox.com> wrote:
>
>  I like generic tunables such as "laptop mode" or "low latency" or "high 
>  throughput".  These sorts of tunables should affect the "automagic" 
>  calculations.

Not sure.  Things like "low latency" and "high throughput" may need other
things, such as "seek latency" and "bandwidth" as _inputs_, not as outputs.

Such device parameters should have reasonable defaults, and use a userspace
app which runs a quick seek latency and bandwidth test at mount-time,
poking the results into sysfs.
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