New Macbook Booting to 64Bit

ncfuser

macrumors regular
Original poster
Oct 24, 2007
112
0
Just got a the New 2.26GHz Intel Core 2 Duo Unibody Mackbook on Saturday.
I was just checking things out and I found out that it was in 64-bit mode.

Its right out fo the box, I never checked anything nor am I holding down the 6 and the 4 while booting.

Is this now standard for it to boot in 64 bit out of the box?

Thanks
 
Feb 15, 2009
5,489
1
Boston, MA
Are your applications running in 64-bit or in the actual kernel and extensions running in 64-bit? To tell this, go to the System Profiler>Select "Software". Then, look at "64-bit Kernel and Extensions"- YES (true 64-bit), NO (applications).
 

NewMacbookPlz

macrumors 68040
Sep 28, 2008
3,266
0
Another way to check is to go to your activity monitor and see if the kernel is listed as Intel or Intel (64-bit).

All apps can run in the 64-bit space despite the kernel being 32-bit, so yeah...

Perhaps though they enabled 64-bit kernel support on the newest white unibody MacBooks *shrug*
 

ncfuser

macrumors regular
Original poster
Oct 24, 2007
112
0
States No.

Got you.
I was missing reading on how to check.
I thought this was telling me I was in 64 mode:
ioreg -l -p IODeviceTree | grep firmware-abi

But only tells me I "can" boot in 64.

Sorry.
 

Catfish_Man

macrumors 68030
Sep 13, 2001
2,579
1
Portland, OR
is there and added benefit to running in 64 as to 32?
Basically no. There's a theoretical performance advantage, but I've never been able to measure it, even with fairly powerful analysis tools and benchmark apps that I wrote specifically to show it. It's primarily useful for very large memory systems (i.e. not a macbook).

It might help VMWare performance a bit. I haven't checked that.
 

Similar threads

  • hawkeyefxr
3
Replies
3
Views
255
  • supertiffany
4
Replies
4
Views
426
  • amgff84
0
Replies
0
Views
224
  • azungu
5
Replies
5
Views
815
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.