Prime95 for Mac Timer Issue

tapion64 · 2014-04-18, 17:31

Not sure if this is just a timer issue or it's actually taking longer, need to verify, but once Prime95 on Mac loses focus for an extended period of time, iteration times increase by a substantial amount. I leave it running during work and check in every once in awhile, for the numbers I'm working on it's ~12-13 seconds per update (when it has focus). However, if the program doesn't have focus for awhile, it starts saying ~22-23 seconds per update. As soon as the program regains focus it starts once again saying 12-13 seconds per update. I think it's just the timer value being used is unreliable, I don't think it's actually losing processor time.

Prime95 · 2014-04-18, 20:42

This is Mavericks saving power by down-clocking the CPU when the foreground tasks aren't using the processor. I found an OS call to disable this feature. There will be a new preference item in 28.5 build 2 (not out yet).

In the meantime, make prime95 the foreground task whenever you leave your computer.

2014-04-18, 17:31	#1
tapion64 Apr 2014 1010101₂ Posts	Prime95 for Mac Timer Issue Not sure if this is just a timer issue or it's actually taking longer, need to verify, but once Prime95 on Mac loses focus for an extended period of time, iteration times increase by a substantial amount. I leave it running during work and check in every once in awhile, for the numbers I'm working on it's ~12-13 seconds per update (when it has focus). However, if the program doesn't have focus for awhile, it starts saying ~22-23 seconds per update. As soon as the program regains focus it starts once again saying 12-13 seconds per update. I think it's just the timer value being used is unreliable, I don't think it's actually losing processor time.

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2014-04-18, 20:42	#2
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 20127₈ Posts	This is Mavericks saving power by down-clocking the CPU when the foreground tasks aren't using the processor. I found an OS call to disable this feature. There will be a new preference item in 28.5 build 2 (not out yet). In the meantime, make prime95 the foreground task whenever you leave your computer.