On 06/13/2017 03:07 AM, dick balaska wrote:
> Am 2017-05-18 12:26, also sprach clipka:
>> Performance seems to be just as good as the native Windows binaries --
>> as a matter of fact, on my machine the Unix variant of beta.7 (compiled
>> with g++ 5.4.0) comes out slightly ahead by about 1%.
> I have one thing I've been wanting to write up...
> In the kitchen of my animation, the tile floor is superellipsoids with a
> box for grout between the tiles.
> When the camera looks at this floor, Windows renders this 10x faster
> than Linux/gcc . (The grout must be present for the extreme
> variation.) At least my theory is it's windows vs. Linux. The problem
> with my theory is that my Windows box is also my only hyperthreaded i7
> cpu. My linux boxen are all i5(s). But I don't think it's the CPU, I
> think it's the compiler. Anyway, now I have to write this up as a
> proper test. I thought it might be interesting to compare against the
> clang results, too.
We did recently fix a - sometimes significant - 'compiler' related
degrade with AA mode 2 (+am2) where the windows compiler was OK, but gnu
g++ and clang were slow. See: https://github.com/POV-Ray/povray/pull/270
merged April 12, 2017.
Though we saw nothing like a 10x difference.
Post a reply to this message