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Re: why gnustep is slower than pure objective-c?

From: Richard Frith-Macdonald
Subject: Re: why gnustep is slower than pure objective-c?
Date: Wed, 8 Oct 2003 09:50:12 +0100

On Wednesday, October 8, 2003, at 12:20 AM, reuss wrote:

because it is a heavy weight framework?
just curious...

Not a good/clear question ...

A GNUstep application is slower to start than an objective-c app which doesn't load a class library ... because it loads the library. In the same way that a C program which doesn't use libc (I know there aren't any in real life) starts faster than one which does. With an objc class library the startup penalties are a bit more than just the work done by the dynamic loader, the classes also need to be registered by the objc runtime, but the principle is the same. If you write an objc program with a comparable alternative class library it will (more or less) start at the same speed as a program using the GNUstep libraries.

Once running, a GNUstep application will run at the same speed as an objc application without GNUstep ... or perhaps faster than most, as your code can take advantage of optimised existing classes rather than writing it all from scratch.

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