Vladimir Prus wrote:
This optimization will make boost::function _much_ faster - in one of How much faster, exactly? Recently, in a thread "[signal] performance" I've posted a small benchmark that finds boost::function to take 4 times more time that call via function pointer -- which, IMO, is pretty fast. I don't have any problem with boost::function speed of invocations (though FastDelegate is two times faster).
Can you use that benchmark to obtain speedup for your optimization?
our project boost::function is responsible for 15% of the whole processor time. I find it pretty strange, can you clarify how it's possible. How did you measure the time spend in boost::function? In our application we need to create lots of short-lived boost::function objects, so time for dynamic allocations performed inside boost::function's constructor really matters.
-- With respect, Alex Besogonov (cyberax@elewise.com)