NET/C# Set Minimum Number of Threads ThreadPool.SetMinThreads Improves Performance

ThreadPool · 发表于 2021-6-17 18:10:45

public static bool SetMinThreads(int workerThreads, int completionPortThreads)

workerThreads: the new minimum number of free auxiliary threads to be maintained by the thread pool.
completionPortThreads: the new minimum number of idle asynchronous I/O threads to be maintained by the thread pool.

Idle threads are maintained by the thread pool in order to reduce the time required to fulfill thread requests from the thread pool. Separate minimums are maintained for auxiliary threads and asynchronous I/O threads. To conserve system resources, idle threads that exceed the minimum number are terminated. Idle threads are maintained as background tasks.

What is the maximum number of threads that can be set in the thread pool?

The maximum number of worker threads is: 32767, the maximum number of asynchronous I/O threads is: 1000, the number is independent of the number of CPU cores, if the number is greater than the maximum number that can be set when using the SetMinThreads method, the setup will fail, i.e., the SetMinThreads method returns false, which means that the change failed.

Test code:

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[ NET/C# Set Minimum Number of Threads ThreadPool.SetMinThreads Improves Performance

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