I want to start an application at a specific time and stop it at another specific time. What I have done so far that is: 
use strict;
use Time::Hires qw (usleep);
my $start = foo
my $stop = bar
while () {
        my $now           = ParseDate("now");
       
        if ( Date_Cmp( $start, $now ) == 0 ) {
            
            start_application;
        }

        if ( Date_Cmp( $stop, $now ) <= 0 ) {
            stop_application;
            last;
        }
        usleep(800000);

    }

[download]
The script must work for Linux and Windows. Start and Stop times have to be accurate. This snippet works for me.
I am just thinking of an alternative method which uses minimum cpu and memory.
I read that sleep can put the processor under heavy load. usleep works quite ok but there is always more than one way to do it.

In reply to Alternatives for "sleepy" while loop by walto

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