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CPU time usage monitor.

Current Version: 4.1

  • Released: Jun 18, 2008
  • Licensed: Permission to use, copy, modify, and distribute without fee


TimeMon gives a graphical representation of where the CPU cycles are going. It's coarse, but better than nothing. The best feature is that it runs in an icon on your dock, so that you never lose it.


TimeMon displays this information within the program's icon. There are three rings displayed. The innermost ring is updated according to the Update Period, which specifies the number of seconds between updates, and Lag Time which specifies how many update periods should be averaged together for the innermost ring. The middle ring is an average of the last Layer Factor update periods, and the outer ring is an average of the values over the course of the square of the Layer Factor update periods. The values in the fields are automagically stored in the user's defaults database.

The difference between Lag Time and Layer Factor are subtle but useful. Both values cause the program to average information over some period of execution, resulting in a more stable display. Lag Time should give a short amount of time useful to even out the "bumps" on the innermost ring. A Lag Time of zero can result in a very dynamic display. A similar effect could be achieved by increasing the Update Period.

TimeMon has been extensively tuned to use as few CPU cycles as possible. But, if you feel the need to pause it, click the Pause menu item. Otherwise, adjust your Update Period to a higher value so that it updates less often


Gregory John Casamento, Riccardo Mottola

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