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cpp-concurrency's Introduction

C++ Concurrency Tests and Examples

CI Build Status

Thread Sanitizer (TSAN)

When using Clang or GCC pass -DUSE_SANITIZER=thread to CMake to use Thread Sanitizer.

Performance: Atomic vs Mutex

System: AMD Ryzen 9 3900X, no sanitizers

Windows 10, native (MSVC 16.11.3):

$ .\build\src\performance_atomic_vs_mutex\Release\performance_atomic_vs_mutex.exe
[2021-11-04 09:14:10.261] [info] atomic  (no thread): 44ms
[2021-11-04 09:14:10.262] [info] atomic (one thread): 116ms
[2021-11-04 09:14:10.262] [info] mutex   (no thread): 152ms
[2021-11-04 09:14:10.262] [info] mutex  (one thread): 263ms

Windows 10, WSL2 Ubuntu 21.04 Linux (Clang 12):

$ ./build/src/performance_atomic_vs_mutex/performance_atomic_vs_mutex
[2021-11-04 09:11:34.338] [info] atomic  (no thread): 44ms
[2021-11-04 09:11:34.338] [info] atomic (one thread): 117ms
[2021-11-04 09:11:34.338] [info] mutex   (no thread): 107ms
[2021-11-04 09:11:34.338] [info] mutex  (one thread): 715ms

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