Testing 8 core mac OSX vs. XP - Bootcamp

[kane]

Tested a frame,

5 min 13 sec on OSX
1 min 2 sec on XP

Wow....that's all:lwicon:

[Captain Obvious]

Doing what, exactly? Rendering? And is that the UB?

[kane]

Yup, Universal Binary
LW 9.3.1
exact same on both.
Rendering a female characters face with GI (Final Gather) no other special settings

[cresshead]

wow the apple macpro really rocks!....with xp!

[3dworks]

did you use all 8 cores when rendering on mac? in my experience there shouldn't be such a big difference in render speed with the same scene between both platforms for LW 9.3.1. what GI settings did you use? can we see a screenshot?

markus

[kane]

I just hit render and waited. I hope it using all 8 cores.
I also did a Modo test...same setup

xp - render time 1 min 28 sec
osx - render time 1 min 45 sec
much more similar

[Chilton]

Hi,

That's not so great. Can you send me the scene?

FWIW, the render calculations should be nigh identical between platforms, so if you're seeing this, there's something very wrong happening somewhere.

-Chilton

[kane]

Looks like LW was set to 1 processor in OSX...so, nevermind.

[Chilton]

I'm... glad to hear it ;-)

Also, please join the Open Beta--I am curious about the render times there, but we can't discuss that anywhere except the OB forums.

-Chilton

[Kuzey]

Hey Kane,

You have me interested now...can you make another test with all processors running so we can see the results :D

Kuzey

[SP00]

Of course post in Open Beta.

[kane]

I tested it again...it only took 10 seconds longer on the osx side...so, no real difference.