Hi James, and others.

Thanks for the help, and the explanation on 64 Bit.

I had the idea what it meant, just was unsure if really was worth the  
switching.

I did test it, and just check it if worked on my mac, and it does.

Thanks again.

Fonzie

On Aug 30, 2009, at 1:21 PM, Scott Howell wrote:

> And James I pretty much have heard that the average user wouldn't  
> notice a real bump in speed any way and really won't benefit from 64- 
> bit as well.  The whole point is building the underpinnings of the  
> os for the next generation of software/hardware etc.  A real bump in  
> speed will come from having solid state drives that can send/receive  
> data at the cpu's speed and even then how fast is fast.
> On Aug 30, 2009, at 1:28 PM, James Dempsey wrote:
>
>> Fonzie,
>>
>> There's are two different things involved when talking about 64- 
>> bit.  First is whether individual applications are running as 64- 
>> bit.  If you have a 64-bit processor, then any application that is  
>> 64-bit capable will run 64-bit.  32-bit applications continue  
>> running as 32-bit.  This happens automatically, and it depends on  
>> whether the individual program supports 64-bit.
>>
>> An application that is 64-bit can use more than 4GB of RAM, and  
>> also 64-bit Intel apps tend to perform better than 32-bit Intel apps.
>>
>> On SnowLeopard, just about every application that ships with  
>> SnowLeopard is 64-bit.  You can check this yourself by launching  
>> Activity Monitor which is in the Utilities folder.  Activity  
>> Monitor has a table of running programs.  The "Kind" column in the  
>> table will say "Intel (64-bit)" for programs running in 64-bit, and  
>> just plain "Intel" for programs running in 32-bit.
>>
>> Everything that I described above happens without you doing a  
>> thing.  If an app supports running as 64-bit, it does so  
>> automatically.  If an app only supports 32-bit, it runs 32-bit  
>> automatically.
>>
>> The second thing involved is whether the Mac OS X kernel itself is  
>> running as 64-bit or 32-bit.  According to this AppleCare article 
>> (http://support.apple.com/kb/TS2937 
>> ):
>>
>> "Third-party software (such as a virtualization engine) or hardware  
>> (such as a PCIe card) that relies on a kernel extension which was  
>> compatible with Mac OS X Server v10.5 may not work on servers that  
>> use the 64-bit kernel in Mac OS X Server v10.6."
>>
>> My guess is that there are enough kernel extensions out there that  
>> are not yet 64-bit, that it made sense to keep the kernel running  
>> in 32-bit, to prevent lots of users from having things stop working.
>>
>> Note that regardless of whether the low-level kernel code is  
>> running at 32 or 64 bit, you still get the advantages of  
>> applications running as 64-bit.
>>
>> So, that's the long answer to your question.  The short answer to  
>> your question:
>>
>> "Should I worry about booting into 64 bit mode?"
>>
>> is no, you shouldn't worry about it.  You are already,  
>> automatically, getting all the 64-bit benefits that are described  
>> for SnowLeopard here: http://www.apple.com/macosx/technology.
>>
>> -James
>> ----------------
>> James Dempsey
>> demp...@mac.com
>>
>>
>> On Aug 30, 2009, at 8:51 AM, Fonzie wrote:
>>
>>>
>>> Hi everyone, I hope your morning/afternoon, or whatever time it is
>>> goes well.
>>>
>>> I noticed that.... Snow Leopard boots in 32 bit mode.
>>>
>>> I check the list of supported 64 bit Macs, and mine is surely on the
>>> list.
>>>
>>> Should I worry about booting into 64 bit mode?
>>>
>>> If so, how would you make it so that it boots into 64 bit mode every
>>> time, and not one that you would have to tell it too.
>>>
>>> Right now, the only way I know of to boot into 64 bit mode, is to
>>> start up, and hold 6 and 4 keys down.
>>>
>>> Take care.
>>>
>>> Fonzie
>>>
>>>
>>>
>>
>>
>>
>
>
> >


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