Re: linux missing support for _POSIX_THREAD_CPUTIME?

From: Thomas Gleixner
Date: Wed May 27 2009 - 12:56:54 EST


On Wed, 27 May 2009, Chris Friesen wrote:

That's more a question for the glibc folks. CC'ed.

> Hi all,
>
> POSIX defines optional support for clock ID values obtained by invoking
> pthread_getcpuclockid(). When passed to clock_gettime(), this allows
> the caller to request the CPU-time clock of an arbitrary thread within
> the same process as the caller.
>
> It appears that linux doesn't support this functionality--is that
> correct? Is there any plan to enable this?
>
> Is there any current way to obtain the runtime of a particular thread
> without knowing its tid (since the thread_id to tid mapping is known
> only to glibc)?
>
> Thanks,
>
> Chris
>
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