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Date: Thu, 11 Dec 2003 16:48:49 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: Lukas Ertl <l.ertl@univie.ac.at>
In-Reply-To: <20031212013059.M599@korben.in.tern>
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cc: acpi-jp@jp.FreeBSD.org
cc: current@freebsd.org
cc: Nate Lawson <nate@root.org>
Subject: Re: [acpi-jp 2878] Re: ACPI throttling changes
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On Fri, 12 Dec 2003, Lukas Ertl wrote:

> On Thu, 11 Dec 2003, Nate Lawson wrote:
> > Haven't gotten any responses to this yet.  Would someone who has working
> > throttling support apply the patch and test that they can indeed change
> > throttling through the sysctl listed above?
> 
> Well, seems to work, but I'm not sure if it works correctly:
> 
> # sysctl hw.acpi.cpu.current_speed=8
> # dd if=/dev/zero bs=1m count=500 | md5
> 524288000 bytes transferred in 10.128099 secs (51765687 bytes/sec)
> 
> # sysctl hw.acpi.cpu.current_speed=4
> # dd if=/dev/zero bs=1m count=500 | md5
> 524288000 bytes transferred in 12.186178 secs (43023169 bytes/sec)
> 
> # sysctl hw.acpi.cpu.current_speed=1
> # dd if=/dev/zero bs=1m count=500 | md5
> 524288000 bytes transferred in 12.127831 secs (43230154 bytes/sec)

One would expect this to take longer, no?