Here's an example of the output of IACA: https://gist.github.com/nkurz/0bea9db0cff60ead1686#file-broadcast-c-L259 https://gist.github.com/nkurz/0bea9db0cff60ead

Here's an example of the output of IACA: https://gist.github.com/nkurz/0bea9db0cff60ead1686#file-broadcast-c-L259 https://gist.github.com/nkurz/0bea9db0cff60ead1686#file-broa... It's somewhat cumbersome to use since you need to recompile with special asm instructions delimiting the region of interest, but the extensive analysis it gives is amazing for extreme micro-optimization.