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Date: Wed, 27 May 2009 10:46:41 -0600
From: "Chris Friesen" <cfriesen@nortel.com>
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To: linux-kernel@vger.kernel.org, tglx@linutronix.de
Subject: linux missing support for _POSIX_THREAD_CPUTIME?
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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