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SubjectRe: Increasing HZ (patch for HZ > 1000)
Date
Pavel Machek <pavel@ucw.cz> writes:

>> > Every notebook from thinkpad 560X up has produced some kind of
>> > cpu-load-related-noise. You'd have to throw out quite a lot of
>> > notebooks...
>>
>> You're right, I'm probably not the only one. It may be worth at least
>> having an option to change HZ to less annoying values. Otherwise there
>> are going to be lots of complaints when people try out 2.6 on their
>> laptops and hear that noise. On mine, I seriously could not stand the
>> noise more than 5 minutes. Not because it was that loud but 1 kHz is
>> really annoying.
>
> Okay, we are probably taking other sounds. I can hear cpu-load-related
> noise on every notebook from thinkpad 560X -- in a quiet room, and on
> some machines its rather hard to notice. You probably have way more
> annoying problem.

My laptop makes a slight noise in the speakers when there are
interrupts. It's only noticeable with an external amplifier
connected. There's also some ~1 kHz sound coming from the vicinity of
the CPU, particularly when there is network activity.

--
Måns Rullgård
mru@kth.se

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