Sets the minimum number of threads the thread pool creates on demand, as new requests are made, before switching to an algorithm for managing thread creation and destruction.
Assembly: mscorlib (in mscorlib.dll)
[<SecurityPermissionAttribute(SecurityAction.Demand, ControlThread = true)>] static member SetMinThreads : workerThreads:int * completionPortThreads:int -> bool
- Type: System.Int32
The minimum number of worker threads that the thread pool creates on demand.
- Type: System.Int32
The minimum number of asynchronous I/O threads that the thread pool creates on demand.
Return ValueType: System.Boolean
true if the change is successful; otherwise, false.
The thread pool provides new worker threads or I/O completion threads on demand until it reaches the minimum for each category. When the minimum is reached, the thread pool can create additional threads in that category or wait until some tasks complete. Beginning with the .NET Framework 4, the thread pool creates and destroys threads in order to optimize throughput, which is defined as the number of tasks that complete per unit of time. Too few threads might not make optimal use of available resources, whereas too many threads could increase resource contention.
When demand is low, the actual number of thread pool threads can fall below the minimum values.
If you specify a negative number or a number larger than the maximum number of active thread pool threads (obtained using GetMaxThreads), returns false and does not change either of the minimum values.
You can use the method to increase the minimum number of threads. However, unnecessarily increasing these values can cause performance problems. If too many tasks start at the same time, all of them might appear to be slow. In most cases, the thread pool will perform better with its own algorithm for allocating threads. Reducing the minimum to less than the number of processors can also hurt performance.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.