[Prime] Iteration time creep

[Bob Margulies]

About a week ago, I  started Prime95, version 23.8.1, running on a HP 
Laptop, Pentium 4, 3GHz, Windows XP. During the first few days, the 
iteration time was about 0.065 sec., but in the past few days, it has 
started to creep upwards, and is now more than 0.09 sec. I am testing 
exponent 22681363.

What do you think this persistent upward creep means?
I just did an experiment. Turned the program off for several minutes, 
then back on. The iteration times that followed were: 0.042, 0.077, 
0.084, 0.089 sec. Obviously the time goes up as the machine heats. Is 
this liable to be dangerous?


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