The POSIX times() function only measures the system time of the master thread and does not take into account any time for the child threads.
This is a kernel issue, still present in the 2.5 kernels.
Created attachment 91222 [details] Test case for times() not receiving info from other threads The program prints currently something like 1050971188: clock 430949932, utime 0, stime 0 1050971189: clock 430950032, utime 0, stime 0 But the utime value should increase based on how much CPU time the two threads get.
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