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Article #4286Re: Why, Why, WHYYYY?? USE OBJECTIVE-C for IB??
From: Donald Lewine
Date: Fri, 11 Dec 1992 16:39
Date: Fri, 11 Dec 1992 16:39
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2140 bytes
In article <dillon.0sh6@overload.Berkeley.CA.US> dillon@overload.Berkeley.CA.US (Matthew Dillon) writes: | No, you are picking up a discussion in the middle. If you had read my | previous postings you would have noted that I acknowledge the | portability and compatibility issues as something Objective-C is good | at and C++ is not so good at, mainly due to the emphasis on the | run-time system in Objective-C. My discussion above is related to the | efficiency issues of that trade-off. Many people, myself included, do | not believe that either Objective-C or C++ are the proper solution. | Objective-C because it is impossible to optimize it and C++ because, | rightly, it should have been designed from scratch instead of hacked | onto C. | In my experience (over 30 years of professional programming), your choice of algorithm has a much larger effect on performance than your choice of programming language or compiler technology. If programmers spent more time working on their algorithm and less time arguing about the efficiency of their compiler, they would produce faster programs sooner. I have been able to speed up programs by a factor of 1000X or more by changing the basic algorithm. I have never seen a speedup that large from a compiler. [Except in cases where the compiler changes the basic algorithm (e.g. loop unrolling)] -- -------------------------------------------------------------------- Donald A. Lewine (508) 870-9008 Voice Data General Corporation (508) 366-0750 FAX 4400 Computer Drive. MS D112A Westboro, MA 01580 U.S.A.
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Newsgroups: comp.sys.next.misc Path: arc1-ca.pugleaf.net!sparky!uunet!psinntp!dg-rtp!webo!usenet From: dlewine@nf01.webo.dg.com (Donald Lewine) Subject: Re: Why, Why, WHYYYY?? USE OBJECTIVE-C for IB?? Sender: usenet@webo.dg.com (Usenet Administration) Message-ID: <1992Dec11.163906.2483@webo.dg.com> Date: Fri, 11 Dec 92 16:39:06 GMT Reply-To: dlewine@nf01.webo.dg.com References: <dillon.0sh6@overload.Berkeley.CA.US> Organization: Data General Corp. Lines: 32