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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.23
Ingo Molnar wrote:
> * Ingo Molnar <> wrote:
>>i've done some further cleanups: made it .config configurable
>>(CONFIG_RTC_HISTOGRAM), moved the latency-histogram construction code
>>into separate functions to make it more apparent that there is no
>>impact to the normal codepaths. Patch attached.
> i've attached another update with a few more smaller details fixed:
> - only print the histogram if a /dev/rtc using application indeed used
> it to get interrupts. This removes bogus printouts triggered by
> hwclock.
> - skip the first RTC interrupt from the histogram - most of the
> /dev/rtc applications do not handle the first event very well,
> skewing the histogram.
> Ingo

Very nicely done. Also much less of a hack now the way you took all of
the code out of the normal codepaths and made it into inlines that
pretty much compile out if not being used.

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