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Re: 64-bit iOS
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Re: 64-bit iOS


  • Subject: Re: 64-bit iOS
  • From: Tom Davie <email@hidden>
  • Date: Tue, 10 Sep 2013 22:50:56 +0200

On 10 Sep 2013, at 22:48, Scott Ribe <email@hidden> wrote:

> On Sep 10, 2013, at 2:39 PM, Joseph Dixon <email@hidden> wrote:
>
>> Some operations that would have taken 2 cycles may now be done in one.
>
> Some. Probably not many.
>
>> Surely that leads to a performance boost, right?
>
> Maybe, maybe not. The flip side is that pointers are twice as large, so half as many fit in cache.

And off when you do need to hit RAM you need to fetch more data.

Tom Davie
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References: 
 >64-bit iOS (From: Scott Ribe <email@hidden>)
 >Re: 64-bit iOS (From: Abdul Sowayan <email@hidden>)
 >Re: 64-bit iOS (From: Joseph Dixon <email@hidden>)
 >Re: 64-bit iOS (From: Scott Ribe <email@hidden>)

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