Corion is correct. A modification that I have had to make on several occasions allows for more time intensive tasks is this: 

while (1) {
    $waketime = time + $sleep_duration;
    &do_complex_things;
    sleep($waketime-time);
}

[download]


Something else that you might want to look into is the Time::HiRes module.

In reply to Re: What is the best way to run periodic tasks (once per minute)? by qi3ber
in thread What is the best way to run periodic tasks (once per minute)? by Novician

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