Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rochester!cornell!batcomputer!braner
From: braner@batcomputer.TN.CORNELL.EDU (braner)
Newsgroups: net.lang.c++,net.micro.atari16
Subject: Re: Re.: C++ preprocessor wanted
Message-ID: <1213@batcomputer.TN.CORNELL.EDU>
Date: Wed, 15-Oct-86 10:47:20 EDT
Article-I.D.: batcompu.1213
Posted: Wed Oct 15 10:47:20 1986
Date-Received: Thu, 16-Oct-86 05:55:40 EDT
References: <6174@alice.uUCp>
Reply-To: braner@batcomputer.UUCP (braner)
Organization: Theory Center, Cornell University, Ithaca NY
Lines: 15
Summary: function call overhead reviewed
Xref: mnetor net.lang.c++:369 net.micro.atari16:2503

[]

If 100000 calls take 4 seconds, that's 40 uS per call, not 4.

BTW, the 100 uS time I mentioned is for sending a method-token
to an object, complete with the lookup and the late binding.
And it is on the Atari ST.  For comparision, a standard C function
call (passing an integer both ways) has a 25 uS overhead, approximately.
Of course, any useful function (or method) would take at least another
20 uS to do its thing, and usually a lot longer.

- Moshe Braner

PS: I got many requests for the Object-Oriented C Programming.
I'll prepare a posting, one of these days.