Cycles BVH benchmark

[LordOdin]

@ltpdttcdft

So I benched this scene in both Windows and Linux on the same machine…

CPU: FX-8350 4.0 GHz

Windows 7 Professional x64
Blender 2.73a
Time : 00:34.22
Peak Memory : 1220.52 MB

Ubuntu 14.04 x64
Blender 2.73a
Time : 00:08.85
Peak Memory : 1220.52 MB

Conclusion: the official build of 2.73a is significantly slower in Windows.

Recommendation: install Linux.

If you were to render a 250 frame animation it would take you ~33 minutes to render just the BVH at 8 seconds but if the BVH was 34 seconds per frame it would be 2 hours and 21 minutes just for the BVH

[holyenigma74]

the problem, which compiler is used when building.

for example Mingw64 on windows will give you the same results as Linux.
and there is also difference in speed between cmake and scons(if i remember correctly scons is faster)

[LordOdin]

@holyenigma74

the problem, which compiler is used when building.

for example Mingw64 on windows will give you the same results as Linux.
and there is also difference in speed between cmake and scons(if i remember correctly scons is faster)

From the stuff i seen (its been a while) MinGW is still behind the linux speeds but it is much closer than official builds.

Why dont we use MinGW by default?

[Ninja7 (Fabrice Alfano)]

CPU: I7 2700K stock
OS : WIN7 PRO X64

Frame:0 Time:00:15:85 Mem:1310.88M Peak:1310.88M

Blender 2.74

[LordOdin]

Back for 2.75

Looks like 2.75 uses a lot less memory