[PD] Academic question about AMD64 and audio
ix at replic.net
Mon Aug 15 21:24:14 CEST 2005
On Mon, Aug 15, 2005 at 01:11:59PM -0700, thewade wrote:
> I have a purely academic question stemming from an accidental install on
> my part:
> Will my AMD64 laptop run PD and other sound apps (using mingo's RT
> patched kernels) faster in native 64-bit linux or faster as a
> conventional 32-bit linux?
amd64 has a number of general-purpose registers that are not available in 32-bit mode, which means code compiled for 64bit will be faster regardless of whether it was specially optimized for 64bit, or uses >4gb of ram..the charts i saw at anandtech put it at around 10-25%..
> I ask this because I am about to install the "correct" 64-bit linux but
> I will then have array problems and other PD errors that have not yet
> been solved... So if my machine is faster in 64 -bit linux the
> shortcommings of 64-bit PD are outweighed by the speed gain.
> Thanks all!
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