> We should check this out: > > http://en.wikipedia.org/wiki/Profile-guided_optimization > > how to use it? Can we integrate it with scons? I wonder how much yade > could get optimized with this. > Uah uah uah! It's been in scons for at least a year. Compile with arcs=gen to have the instrumented code, run a few simulations, recompile with arcs=use. RTFM gcc, options -fprofile-arcs and -fbranch-probabilities. I tried it only once, I think, but it had no noticeable effect, though.
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