Cosmopolitan Libc stands out not only for its cross-platform capabilities but also for its highly efficient mutex library. Benchmarks reveal Cosmopolitan mutexes significantly outperform Microsoft's SRWLOCK on Windows, glibc on Linux, and show competitive results on MacOS. The success is attributed to the integration of nsync, developed by a Google engineer. Examples of source code demonstrate implementation, and real-world applications highlight its robustness in handling high contention efficiently.
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