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Re: How can I force thread switching?

by Grimy (Pilgrim)
on Sep 28, 2013 at 15:29 UTC ( [id://1056144]=note: print w/replies, xml ) Need Help??


in reply to How can I force thread switching?

In Java, calling Thread.yield() (or, alternatively, Thread.sleep(0)) does what you want. I’m not sure how to do the equivalent in Perl, but if sleeping for one micro-second is more acceptable, you may want to look at Time::HiRes.

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Re^2: How can I force thread switching?
by ajl52 (Novice) on Sep 28, 2013 at 15:41 UTC

    I have already explored Time::HiRes since usleep() is defined in this package.

    I also attempted to wait for 0 unit of time (second or microsecond) to no avail. The null delay is probably detected somewhere and optimised out.

    As stated in the manual, yield() is a no-op on most systems.

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      I also attempted to wait for 0 unit of time (second or microsecond) to no avail. The null delay is probably detected somewhere and optimised out.

      BrowserUk says yield is a mistake (like sleep 0), so sleep more, like 1/2 (or less) of the minimum time period that you believe it will take, like 33 milliseconds -- seems to hold true on win32, good rule of thumb :)

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