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Re: Objective-C 2.0
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Re: Objective-C 2.0

On Aug 10, 2006, at 01:04, Marcel Weiher wrote:
Is garbage collection faster/slower/the same speed as malloc/free? We introduceoracular memory management, an approach that lets us answer this question by measuring unaltered Java programs as if they used malloc and free. The result: a good GC can match the performance of a good allocator, but it takes 3X-5X more space.

Well, this probably dosn't apply either ;-) We don't compare speed between GC and malloc/free but between GC and RC/Foundation. The latter has significant processing overhead on its own, which is likely (again, we can't say till we try ;-) to exceed that of the GC.
If a good GC is as fast as malloc/free you can assume it to be three times as fast as Foundation RC ;-) So you get three times the performance for three times the RAM ;-)

Anyway, I suppose the point is that memory consumption is bound to grow. Though I really wonder how big the real world effect will be.
Maybe they really keep supporting RC for serious apps and suggest GC for quick/small hacks. Though I doubt RC will survive 10.7 ;-)

Greets,
  Helge

PS: great to discuss useless stuff again, thanks Apple ;-)
--
Helge Hess
http://docs.opengroupware.org/Members/helge/



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References: 


 >Objective-C 2.0 (From: "Philippe C.D. Robert" <email@hidden>)


 >Re: Objective-C 2.0 (From: Dietmar Planitzer <email@hidden>)


 >Re: Objective-C 2.0 (From: Greg Hurrell <email@hidden>)


 >Re: Objective-C 2.0 (From: Dietmar Planitzer <email@hidden>)


 >Re: Objective-C 2.0 (From: stephen white <email@hidden>)


 >Re: Objective-C 2.0 (From: Helge Hess <email@hidden>)


 >Re: Objective-C 2.0 (From: Greg Hurrell <email@hidden>)


 >Re: Objective-C 2.0 (From: Marcel Weiher <email@hidden>)























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