Understanding performance with Google Benchmark @ Italian C++ Meetup

During the last meetup of the Italian C++ Community in Modena, Italy I had the chance to give a talk about profiling C++ code. The whole game boils down to understanding what’s going on when you have to cope with very smart optimizing compilers, NUMA architectures and speculative, superscalar CPUs: in this quest for knowledge we are lucky enough to have some extremely useful tools like the holy perf and micro benchmarks, using the excellent Google Benchmark for instance.

It has been a lot of fun!

You can find all the support material including examples and helper scripts here, feel free to grab anything you happen to find useful. Oh, and the slide deck is here.

Thanks to all the attendees and to Marco Arena for the chance to prattle on about some fun stuff I enjoy.