Comments on: MacMost Now 286: Snow Leopard and 64-Bit Mode

By: Gary Rosenzweig

Gary Rosenzweig — Fri, 04 Sep 2009 23:44:31 +0000

Yes, but just the kernel. Just the kernel. The apps themselves that are 64-bit will use 64-bit operations regardless of the kernel. And the apps that are 32-bit will use 32-bit integer operations. Having a 64-bit kernel is NOT going to speed up your apps 5%-10%.

By: Sa

Sa — Fri, 04 Sep 2009 23:38:24 +0000

Yeah BUT about the FACT that a 64 bit kernel with 64-bit integer capability: All general-purpose registers (GPRs) are expanded from 32 bits to 64 bits, and all arithmetic and logical operations, memory-to-register and register-to-memory operations, etc. can now operate directly on 64-bit integers.

A 64bit kernel is faster then a 32 bit kernel and even if you don’t have the memory it will perform faster anywhere from roughly 5%-10%

By: Sundog

Sundog — Mon, 31 Aug 2009 15:35:36 +0000

Thanks Gary!

Done, no more need to think about this. :)

Since I do Casting as well I appreciate the work that goes into your movies.