[acpi-jp 2878] Re: ACPI throttling changes

[Lukas Ertl]

On Thu, 11 Dec 2003, Nate Lawson wrote:

> On Tue, 9 Dec 2003, Nate Lawson wrote:
> >
> >    sysctl hw.acpi.cpu.current_speed=X
> >
> >     dd if=/dev/zero bs=1m count=500 | md5
> >
> 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)

regards,
le

-- 
Lukas Ertl                             eMail: l.ertl at univie.ac.at
UNIX Systemadministrator               Tel.:  (+43 1) 4277-14073
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