sleep can only sleep for an integer amount of time. Essentially, anything you pass to sleep will seem as though you did sleep( int(###) );. So sleep( 2.5 ) will sleep for 2 seconds, not 2.5. There are two solutions: use select as davido says (select( undef, undef, undef, 2.5 )) or else pull in the Time::HiRes module to replace the sleep command with one that works with floating point sleep times: 

use Time::HiRes qw( sleep );

sleep( 2.5 );

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In reply to Re: sleep(2.5) by saskaqueer
in thread sleep(2.5) by chiburashka

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