linux missing support for _POSIX_THREAD_CPUTIME?

[Chris Friesen]

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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