7 Jan
2004
7 Jan
'04
12:38 p.m.
The idea is to stop a Haskell prog with no runable threads or events to process hogging CPU time. I was a bit dissapointed to find that despite this on my (otherwise idle) machine the above code was still using 96% of cpu time.
But fiddling about a bit I found that by changing the thread delay in the main loop to 20 mS the CPU usage dropped to 1% or so, which is much more acceptable (well it did say 1/50 th second accuracy in the docs :-).
Yes, threadDelay will round the interval down to the nearest multiple of the resolution, so you were effectively using threadDelay 0. This ought to be mentioned in the documentation. Cheers, Simon