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SubjectRe: How is user space notified of CPU speed changes?
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Lee Revell <rlrevell@joe-job.com> wrote:
> On Fri, 2004-10-22 at 12:23 +0100, Alan Cox wrote:
>> No it did not. It has never been a safe assumption.
>
> OK, thanks. Still no answer to my original question though.
>
> JACK makes extensive use of microsecond-level timers. These must be
> calibrated at startup, and recalibrated when the CPU speed changes. How
> does JACK register with the kernel to be notified when the CPU speed
> changes?

The kernel does not always know when the CPU speed changes. This makes
notification somewhat harder.

--
Matthew Garrett | mjg59-chiark.mail.linux-rutgers.kernel@srcf.ucam.org
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