[R-SIG-Mac]timing R and R and R and R

Thomas Lumley tlumley@u.washington.edu
Tue, 13 Nov 2001 11:34:05 -0800 (PST)

On Tue, 13 Nov 2001, David A Richmond wrote:

> 	I am moving away from os9 and doing as much as I possibly can in
> osX. I am going to abandon 9 completely as soon as it is feasible for me
> to do everything I need to do in X. What I would like to see most is a
> Cocoa version of R. It is my understanding that Carbon is nice for
> cross-OS compatibility, but ultimately Cocoa is the API of choice. Would I
> be correct in assuming that performance differences Jan found would also
> be seen between a Carbon app and a Cocoa app?

I don't think we know. It's a reasonable guess, but there could be user
interface overhead.

The difference is suprisingly large given that (IIRC) R runs with almost
the same speed under Windows and Linux on the same hardware.