Best accurate way to measure/compare elapsed time in C++

• benchmark

  19 8,402 8.8 C++

  A microbenchmark support library

  

• coz

  18 3,819 6.0 C

  Coz: Causal Profiling

  

https://github.com/plasma-umass/coz https://youtu.be/7g1Acy5eGbE

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• Kalman

  12 36 8.9 C++

  Kalman Filter (by FrancoisCarouge)

I use it with boilerplate similar to this: https://github.com/FrancoisCarouge/Kalman/blob/develop/benchmark/benchmark.cpp and run the executables with priority and pining: nice -n 20 tasker -- cpu-list 0

• hyperfine

  74 19,952 8.1 Rust

  A command-line benchmarking tool

I have used hyperfine in the past, a rust CLI based tool to measure performance. you'd have to make some small changes, since hyperfine will measure the entire binary and not just parts of it, but it comes with some useful functions like warmup runs, graphical output and statistical analysis across multiple runs.

• perfstat

  2 0 3.6 Python

  Python program for measuring performance statistics

Perfstat - Performance statistics

• nanobench

  13 1,307 5.0 C++

  Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20

Of course, the best way to benchmark is nanobench: https://nanobench.ankerl.com/

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