benchmark

perf

CppCon 2015: Chandler Carruth "Tuning C++: Benchmarks, and CPUs, and Compilers! Oh My!" https://youtu.be/nXaxk27zwlk

• uses Google's lib

https://github.com/google/benchmark

• compiler flags

-fno-omit-frame-pointer

• perf commands and options

perf stats

perf record -g

perf report -g "graph,0.5,caller"

perf report -g "graph,0.5,caller" ./<executable-with-google-lib> --filter-function <func-name>

• perf report commands

a

• magic functions