benchmark - RawIron/learn-cpp GitHub Wiki

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
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