On Wed, Jun 1, 2011 at 12:12 PM, Dave Hodgkinson <[email protected]> wrote: > > Also note on my perfectly 64 bit macbook pro: > > $ uname -p > i386
On Mac OS X 10.6, the system boots to the 32-bit kernel by default. http://support.apple.com/kb/HT4287 http://support.apple.com/kb/HT3773 You may get a performance boost by rebooting into the 64-bit kernel. On the other hand, you may see all kinds of subtle & not-so-subtle things explode in imaginative, hilarious fashion. Presumably, 10.7 will boot to the 64-bit kernel and drop support for 32-bit mode. This wasn't a feasible default for 10.6, as it still supports the original Intel Core Solo/Duo Macs, which had 32-bit CPUs. Everything after the Core 2 Duo was 64-bit, and that seems to be the baseline spec for 10.7, so an updated kernel seems like a safe guess. -- Chris Devers
