Joost Bekkers wrote:
On Sat, Aug 06, 2005 at 07:33:02PM +0200, Philip S. Schulz wrote:
Joost Bekkers wrote:
Is there a way to calculate (over eg. a 5 minute interval) the average
amount the cpu was throttled? In this case by powerd(8).
[...]
Perhaps I should have said that differently: it is being throttled by powerd.
It doesn't have to do the measuring of the average itself.
So you're looking for a history of the CPU frequency, similar to the
history of CPU usage? I don't think the kernel keeps any such
statistics. But you should take a look at the man page or possibly the
sources of the driver you're using, e.g. est or powernow.
I was thinking there might be a counter/timer which is linked to the cpu
clock, but sofar I haven't been able to find one.
Well, you can see the current CPU frequency by looking at dev.cpu.0.freq
where 0 is the id of the CPU you want to query.
At the times I take measurements the cpu tends to run at 100%, which would
result in a nice flat line.
I don't really understand what you mean. What problem are you trying to
solve?
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