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From: chewy@apple.com (Paul Snively)
Newsgroups: comp.sys.mac.system
Subject: Re: AppleEvent Throughput...
Message-ID: <10112@goofy.Apple.COM>
Date: 8 Sep 90 01:25:10 GMT
Sender: usenet@Apple.COM
Organization: Apple Computer, Inc.
Lines: 52
References:<9842@goofy.Apple.COM> <459@three.mv.com>

In article <459@three.mv.com> cory@three.mv.com (Cory Kempf) writes:
> >        High-Level Events will have a higher priority than 
user-initiated 
> >events, so that AppleEvent throughput will be at an acceptable level).
> 
> Uh, have you lookede at the actual throughput rate of AppleEvents?

Yes.  Of course, we have the advantage of having more recent software than 
you do.

> This is on an unloaded (e.g. no serious background processing) MacIIx
> and system 7a9.

Therein lies the catch.  The performance problem (I'd go so far as to call 
it a bug in the Process Manager's scheduling) certainly hadn't been fixed 
as of a9.

> I think that these 
> numbers need to be improved by at least two orders of magnitude before
> the AE system can be used for internal program communications  (which
> is a real pisser: I was planning on using it for my interobject 
> communications to build a multithreaded application.  Now, I either
> must special case or use a new system).

I agree with your assessment of a9, and I'm quite certain that you'll be 
pleased with the beta release.

> I know the system 7 development
> team is planning on speeding up the system, but I think that a two
> order of magnitude improvement is a bit much to expect.  (I would really
> love to be proven wrong though!!)

Well, in the case of AppleEvents, that speed-up has already been around 
for some time--it just hasn't gone out to "the world at large" yet.  
Again, people will be very very surprised by the beta release (by way of 
comparison to a9 in particular).

> I really do not think that AE throughput is at an "Acceptable Level"

You're quite right.  The comment wasn't intended to refer to the version 
that you have; it was intended to refer to versions that I have.

__________________________________________________________________________
                                Paul Snively
                      Macintosh Developer Technical Support
                             Apple Computer, Inc.

chewy@apple.com

Just because I work for Apple Computer, Inc. doesn't mean that I believe 
what they believe, or vice-versa.
__________________________________________________________________________