How to disable Hyper Threading on 10.7?

[Oppressed]

Reaching out to all the developers out there. I'm interested in finding the CPUPallet preference panel that use to be either located under /Library/Application Support/HWPrefs/CPUPalette or under the extras folder in the developer tools. Both locations are gone.

If anyone knows where I can find this preference panel again I would greatly appreciate it.

 

[Madd the Sane]

Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

Why do you want to disable hyperthreading?

 

[gglockner]

Sorry for the long delay in replying...

In Snow Leopard, there were three ways to disable HT on-the-fly. As far as I can tell, none of these work in Lion. However, you can permanently disable hyperthreading by issuing the following command in the Terminal:

sudo nvram SMT=0

To re-enable hyperthreading, use the command:

sudo nvram -d SMT

Changes will take effect when you reboot.