RE: getCPUTime: buggy?
Given getrusage(RUSAGE_SELF, t); cpu[0] = t.ru_utime.tv_sec; cpu[1] = 1000 * t.ru_utime.tv_usec; cpu[2] = t.ru_stime.tv_sec; cpu[3] = 1000 * t.ru_stime.tv_usec; in `getCPUTime.c', I don't understand return ((fromIntegral (I# (indexIntArray# frozen# 0#)) * 10 + fromIntegral (I# (indexIntArray# frozen# 1#)) + fromIntegral (I# (indexIntArray# frozen# 2#)) * 10 + fromIntegral (I# (indexIntArray# frozen# 3#))) * 1000) in `GetCPUTime.lhs'. I mean, I would expect cases 1# and 3# to be the same. Is it a problem in my brain or in the code? Yep, it looks entirely bogus to me. Cases 0#, 1# and 2# all look to be in nanoseconds, but they should be in picoseconds. Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: getCPUTime: buggy?
Given getrusage(RUSAGE_SELF, t); cpu[0] = t.ru_utime.tv_sec; cpu[1] = 1000 * t.ru_utime.tv_usec; cpu[2] = t.ru_stime.tv_sec; cpu[3] = 1000 * t.ru_stime.tv_usec; in `getCPUTime.c', I don't understand return ((fromIntegral (I# (indexIntArray# frozen# 0#)) * 10 + fromIntegral (I# (indexIntArray# frozen# 1#)) + fromIntegral (I# (indexIntArray# frozen# 2#)) * 10 + fromIntegral (I# (indexIntArray# frozen# 3#))) * 1000) in `GetCPUTime.lhs'. I mean, I would expect cases 1# and 3# to be the same. Is it a problem in my brain or in the code? Yep, it looks entirely bogus to me. Cases 0#, 1# and 2# all look to be in nanoseconds, but they should be in picoseconds. I take it back. Read the code again *very* carefully :-) Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
