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Re: looking for a memory problem
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Re: looking for a memory problem


  • Subject: Re: looking for a memory problem
  • From: Charles Srstka <email@hidden>
  • Date: Wed, 18 Jul 2012 14:38:42 -0500

On Jul 18, 2012, at 12:45 AM, Martin Hewitson wrote:

> On 18, Jul, 2012, at 03:07 AM, Charles Srstka <email@hidden> wrote:
>
>> On Jul 17, 2012, at 11:31 AM, Martin Hewitson wrote:
>>
>>> On 17, Jul, 2012, at 05:42 PM, Sean McBride <email@hidden> wrote:
>>>
>>>> On Tue, 17 Jul 2012 12:30:39 +0200, Martin Hewitson said:
>>>>
>>>>> This started to appear during the process of going from GC to non-GC.
>>>>
>>>> What do you mean "non-GC"?  I strongly suggest going from GC to ARC, not from GC back to the stone-age retain-release.  Although quite different 'under the hood', writing for GC and ARC is not so different, and you can even switch over slowly.
>>>
>>> That was my original plan, but ARC is 64-bit only, right? I'm not sure I'm ready to drop 32-bit support yet, at least not without canvasing opinion from the users.
>>>
>>> Martin
>>
>> I’ve got an app that’s backward-compatible all the way to 10.4/PPC, to which I added Sparkle support about half a year ago. In that half year, according to the Sparkle stats, 93.99% of my users have been on 64-bit Intel CPUs. Of the 6% who are not on 64-bit Intel, only  2.72% are using 32-bit Intel, followed by 1.91% on 32-bit PPC and 1.38% on 64-bit PPC (i.e. the G5).
>
>
> That's very interesting. Not least of all that Sparkle can provide these stats. I didn't know that. I guess today I'm integrating Sparkle and preparing to gather some statistics. I'd very much like to drop 32-bit support in favour of ARC!

The thing about it is that you appear to be using block-based APIs already, which means you already require at least 10.6, which means that you’re already Intel-only and have no PPC users, so if your user base is like mine, you’ll lose only 2.72% of your userbase by dropping 32-bit.

And honestly, your numbers probably *are* pretty close to mine. 32-bit Intel Macs are pretty rare. The most common are the original white/black MacBooks, which were only in production for about six months in 2006, since Apple switched to 64-bit processors almost immediately after they switched to Intel.

Charles

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References: 
 >looking for a memory problem (From: Martin Hewitson <email@hidden>)
 >Re: looking for a memory problem (From: Sean McBride <email@hidden>)
 >Re: looking for a memory problem (From: Martin Hewitson <email@hidden>)
 >Re: looking for a memory problem (From: Charles Srstka <email@hidden>)
 >Re: looking for a memory problem (From: Martin Hewitson <email@hidden>)

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