Zorro
18-10-2010, 07:38
Le macchine quad core, i5 i7 etc ( tutte quelle che hanno l'hyperthread = raddoppio virtuale dei core disponibili) hanno problemi di prestazione dopo L 9.1.2. Cio' accade perchè questo update disabilita l'HT : sotto la soluzione per rimettere le cose a posto.
Il problema è conosciuto da Apple che ha suggerito questa soluzione :
Open Terminal.app from /Applications/Utilities and copy the following line into the window and press return:
defaults write com.apple.logic.pro MD_AllowVirtualCoresQuad -bool yes
You can then quit Terminal.app. Relaunch Logic and you should have twice the number of processing threads.
Warning: this preference can actually lower your performance or have a negative impact on stability (e.g. you get audio engine overloads). In this case you can disable it by using the following line in Terminal.app:
defaults write com.apple.logic.pro MD_AllowVirtualCoresQuad -bool no
-Z
Il problema è conosciuto da Apple che ha suggerito questa soluzione :
Open Terminal.app from /Applications/Utilities and copy the following line into the window and press return:
defaults write com.apple.logic.pro MD_AllowVirtualCoresQuad -bool yes
You can then quit Terminal.app. Relaunch Logic and you should have twice the number of processing threads.
Warning: this preference can actually lower your performance or have a negative impact on stability (e.g. you get audio engine overloads). In this case you can disable it by using the following line in Terminal.app:
defaults write com.apple.logic.pro MD_AllowVirtualCoresQuad -bool no
-Z