1.TheHPXProject / hpxThe C++ Standard Library for Parallelism and Concurrencyc-plus-plusdistributedcross-platformparallelismconcurrencycpp20+1 moreC++BSL-1.03K total577 forks+29 starsfrom 2,924 · score 3.40
2.boostorg / beastHTTP and WebSocket built on Boost.Asio in C++11boostc-plus-plus-11websocketwebsocket-clientwebsocket-serverhttp+14 moreC++BSL-1.04.8K total697 forks+9 starsfrom 4,821 · score 2.30
3.khizmax / libcdsA C++ library of Concurrent Data Structureslock-freecontainershazard-pointerrcuC++BSL-1.02.7K total364 forks+4 starsfrom 2,742 · score 1.61
4.tzcnt / TooManyCooksC++20 concurrency framework with no compromises. Excellent performance, powerful features, and simple syntax.coroutinescppcpp20lock-freeconcurrencymulti-threading+7 moreC++BSL-1.0284 total12 forks+3 starsfrom 281 · score 1.39