Re: Will Java kill C++?

Article View: comp.lang.java

Article #284

#284

From: Alan L. Lovejoy
Date: Wed, 17 Apr 1996 00:08

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Tom Payne wrote:
> 
> Alan L. Lovejoy (alovejoy@concentric.net) wrote:
> :
> : I did those benchmars to prove that Smalltalk message sends are faster
> : than c function calls.  To do that, I needed a benchmark that consisted
> 
> How is that possible, given that the message has to find the entry
> point of the method and has to communicate parameters by mechanisms
> not unavailable to C.

It's a fact.  It's possible because full method lookup only needs to
occur the first time a message is sent to a receiver of a particular
class, not each time a message is sent--and because message sends do not
use "JSR/BSR" machine instructions, but just use simple jumps or 
branches.  Remember, method contexts are allocated on the heap, not on
the stack.  

--Alan

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Path: arc1-ca.pugleaf.net!newsfeed.concentric.net!news
From: "Alan L. Lovejoy" <alovejoy@concentric.net>
Newsgroups: comp.lang.java,comp.lang.c++,comp.lang.smalltalk
Subject: Re: Will Java kill C++?
Date: Tue, 16 Apr 1996 17:08:09 -0700
Organization: Modulation
Message-ID: <31743669.62A1@concentric.net>
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