cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   pabloruiz55
   Member

   Hi, i read this today(regarding chipmunk):

   If you are getting cpv() in the trace it's because it's not compiled with inlining enabled. That should actually be a pretty sizable performance hit. You should also make sure that you are compiling with the -ffast-math flag and that you are disabling thumb compilation at least for the Chipmunk sources. Enabling both of those will probably give you another very sizable bump in speed.

   I was wondering how to do this:

   - compile with inlining enabled
   - compile with -ffast-math flag

   Could you tell me please?

   Thanks

   Posted 2 years ago #
2. 

   edisonslabs
   Member

   Inlining is automatically enabled when you compile with the Optimization -O3 or higher option (which should already be set, for debug or release). The compiler will automatically determine which areas of code could be good for inlining if you didn't specify inline yourself.

   I'm not so sure about -ffast-math flag, I remember reading it was either not supported or not recommended? Can anyone comment on that?

   Anyhow, I think the biggest boost would be in disabling thumb compilation. Unless your game involves tons of cpv()s, I don't think it will be too big of a performance hit.

   Posted 2 years ago #

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