On 9 maj 2012, at 20:14, [email protected] wrote:
> on 2012-05-09 9:02 Dinse, Gregg (NIH/NIEHS) [E] wrote > >> Did you get the impression that Lion decides when to activate the extra > (logical) cores, as opposed to the user having to decide (and possibly make a > choice in some preference panel)? > > it is automatic, not user-driven, but i don't know the mechanism; it's > possible that energy saver settings would have an effect > >> >> Although I always see 16 bars (in iStat Menus or MenuMeters), usually only >> every other bar moves above zero. So, my guess is that typically only the 8 >> (physical) cores are being used, but the other 8 (logical) cores can be >> activated (automatically) if a task can benefit from parallelism. > > i use iStat Menus, and on my quad-i7 laptop, i often see some activity in the > four secondary "cores", but they don't seem to "max out" like the four > primary cores do on some tasks > If the_______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
