Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?

sleep() VS Win32::sleep()

by Nitrox (Chaplain)
on Jul 21, 2002 at 18:24 UTC ( #183845=perlquestion: print w/replies, xml ) Need Help??

Nitrox has asked for the wisdom of the Perl Monks concerning the following question:

I have a perl script that is lauched by another script via Win32::Process. (so it can run detached; a.k.a no console window). Within the running script I have certain points where it sleeps for a short bit.

My question is; is there a difference between using sleep(1); or Win32::Sleep(1000)? Do both "hand-off" the time-slices while sleeping?


Replies are listed 'Best First'.
Re: sleep() VS Win32::sleep()
by svad (Pilgrim) on Jul 21, 2002 at 18:45 UTC
    yes, they both "hand-off" time-slices, AFAIK.

    Win32::Sleep just gives you better granuality, and, for certain, takes away portability. Time::HiRes is much more portable in this.

Re: sleep() VS Win32::sleep()
by BrowserUk (Patriarch) on Jul 21, 2002 at 19:01 UTC

    Fairly safe to say that they both 'hand off' the cpu for the duration. The benchmark as run proves little else of course. I'll leave comparing their efficiency/accuracy AAEFTR.

    #! perl -w use strict; use Win32; use Benchmark; timethese ( 100, { 'Win32' => ' sleep 1', 'Std' => ' Win32::Sleep 1000' , } ); __DATA__ # output C:\test>183845 Benchmark: timing 100 iterations of Std, Win32... Std: 100 wallclock secs ( 0.00 usr + 0.00 sys = 0.00 CPU) (warning: too few iterations for a reliable count) Win32: 100 wallclock secs ( 0.00 usr + 0.00 sys = 0.00 CPU) (warning: too few iterations for a reliable count)

    A quick 'deco' at the task manager whilst either sleep is in 'progress' shows that they are fairly obviously doing 'nothing'! :^)

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: perlquestion [id://183845]
Approved by ignatz
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others browsing the Monastery: (3)
As of 2023-12-09 14:20 GMT
Find Nodes?
    Voting Booth?
    What's your preferred 'use VERSION' for new CPAN modules in 2023?

    Results (38 votes). Check out past polls.