28 FPS with particle system added to Tutorial06?

Hi, I'm getting a 50% drop if FPS on device to 28FPS when adding particle systems to a physic enabled scene from Tutorial06. If the particle system is culled, it jumps back up. This is the particle system code from Tutorial12, btw. Any tips on how to improve the fps? Less particles, of course... but how about using png (or pvr?) instead of tga? Or something else?



Thanks,
--yarri

Use shark to do some profiling and check where the bottleneck is...

Looks like Bullet btSimulationIslandManager::buildIslands() is the culprit, time to dig into Bullet specs...

--yarri

lemme know the result!

I'll profile more tomorrow, the Oolong guys seem to be feeding Erwin profiling data... how can I enable CProfileManager::DumpAll() in SIO2?

http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2832&p=11306&hilit=profiling#p11306

--yarri

Hi, I'm getting 35fps on the Physics thread now...

The gcc -O2 optimization along with the -fno-regmove should be the default Bullet setting for Release configuration, see this thread:
http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=3225&start=15

--yarri