Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!pyramid!voder!apple!lsr
From: lsr@Apple.COM (Larry Rosenstein)
Newsgroups: comp.sys.mac
Subject: Re: Shy pre-emption++
Message-ID: <7723@apple.Apple.Com>
Date: 17 Mar 88 18:37:01 GMT
References: <7670@apple.Apple.Com> <6970@drutx.ATT.COM> <2154@polya.STANFORD.EDU>
Reply-To: lsr@apple.UUCP (Larry Rosenstein)
Organization: Advanced Technology Group, Apple Computer
Lines: 17

In article <2154@polya.STANFORD.EDU> ali@polya.UUCP (Ali Ozer) writes:
>
>Note that I'm not saying MultiFinder can't do these; with enough work
>anything is possible. You can kludge up you ray tracer and stick in
>calls to check the event queue. You'd need to put these in a lot
>places, though, as ray tracers tend to do off and run in floating
>point intensive loops for long periods of time. As soon as some event

Not true.  I ported DBW Render from the Amiga, and used the MPW performance
measurement tools to find out where the CPU time was being spent.  I only
need to add 2 calls to GetNextEvent to yield the CPU and get it to run in
the background.

-- 
		 Larry Rosenstein,  Object Specialist
 Apple Computer, Inc.  20525 Mariani Ave, MS 32E  Cupertino, CA 95014
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