64 bit kernel

[newuser2310]

As of last night I switched to the 64 bit kernel on my early 2010 21' IMac. I have noticed a significant performance improvement in all areas over using the 32 bit kernel that is loaded by default.

You hold 6 & 4 at startup.

Here's a link explaining it a bit more

http://macperformanceguide.com/SnowLeopard-64bit.html


I'm sure many of you already knew about this but thought it would be helpful for people who have just bought a new Mac.

 

[JNB]

Nice tip, and not all of us were aware that 32-bit was the default. For those wanting to jump up, I do recommend they read the cautions in the liked article closely.

Another method for converting not mentioned is to use a System/UI manager such as MacPilot (don't know if OnyX or others offer the same).

 

[unixfool]

NICE! Will try this sometime today!

 

[Consultant]

Covered in OS x section. It's even a sticky.
https://forums.macrumors.com/threads/783948/

 

[MacDawg]

Some of us on older MBPs aren't able to boot 64 bit

 

[JNB]

Covered in OS x section. It's even a sticky.
https://forums.macrumors.com/threads/783948/

Thanks, that's even better. Problem is, I never see each forum's stickies the way I browse MR.

 

[unixfool]

Some of us on older MBPs aren't able to boot 64 bit

Then this thread doesn't apply to you...newer hardware only. I've an older Macbook, so I'm in the same situation, but I also just purchased a new iMac, so I can actually give 64bit a spin.

 

[wilycoder]

For some reason this doesn't work on my 27" iMac.

I tried it several times too. I'm not editing the plist until I can test it by holding the 6 and 4 keys.

 

[newuser2310]

For some reason this doesn't work on my 27" iMac.

I tried it several times too. I'm not editing the plist until I can test it by holding the 6 and 4 keys.

I had the same problem, holding the keys for ages seemed to do the trick.

 

[unixfool]

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For some reason this doesn't work on my 27" iMac.



I tried it several times too. I'm not editing the plist until I can test it by holding the 6 and 4 keys.

Then you aren't doing something right. It's as simple as holding down those keys when it's booting up.

 

[wilycoder]

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Then you aren't doing something right. It's as simple as holding diwn those keys when it's booting up.

I just tried again, and I started holding the keys down before my desktop disappeared from the reboot. I held the keys down until I saw my desktop again.

64bit kernel and extensions: No