What are the performance benchmarks of shared_mutex?

What are the performance benchmarks of shared_mutex?

The performance of shared_mutex can vary based on the implementation and workload. Generally, it allows multiple readers or one writer, which can improve performance in read-heavy scenarios.

How does it compare to std::mutex?

std::mutex allows only one thread to access a resource at a time, while shared_mutex allows multiple threads to read simultaneously. This can lead to better performance in scenarios with many readers.

Are there any specific benchmarks I should look at?

Yes, benchmarks often focus on throughput and latency under different workloads. Libraries like Google Benchmark can help you measure these metrics.

What factors affect the performance of shared_mutex?

Factors include the number of threads, the ratio of read to write operations, contention levels, and the underlying hardware.