Just make your own profiler that shows the execution time in ms for all your major functions (AI, rendering, etc) on the screen. That''s what I do for all of my projects. That way you can easily see where you are getting slowdowns... for example, you might see your rendering time increase from 2 ms per frame to 20 ms per frame when staring into a toliet. Then you cut down on the toliet''s polys.

some acceleration techniques

Intel also has a compiler.

check it out.
http://developer.intel.com/software/products/compilers/