My understanding of the CPU utilization is that it's an average. In case 2 your script is spending most of it's time asleep, and waking briefly to check for a key press, so the CPU average is very small.

The initial CPU hit is due to the perl program startup and memory allocation for the process I suspect.

My 2p.

"The future will be better tomorrow." ... from the collected wisdom of George W Bush.

In reply to Re: Sleep, don't Weep by Mungbeans
in thread Sleep, don't Weep by jlongino

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