Make a ServicedComponent run with lower priority

Question

We have a ServicedComponent (COM+ server application) which is quite CPU intensive. It's called from a Windows Service and the amount of time it takes for it to complete is not very important.

However, I do need it to run with lower priority. How can I change it's priority?

Answer 1

I'm assuming that your component is running in a Server Application (out of process from your windows service).

If that is the case you could set the priority of the COM+ process to be BelowNormal in the class constructor:

public class Class1 : ServicedComponent
{
    public Class1()
    {
        System.Diagnostics.Process process = 
            System.Diagnostics.Process.GetCurrentProcess();

        if (process.PriorityClass != 
            System.Diagnostics.ProcessPriorityClass.BelowNormal)
        {
            process.PriorityClass = 
                System.Diagnostics.ProcessPriorityClass.BelowNormal;
        }
    }
}

If I run a simple test the dllhost.exe process priority is set to be BelowNormal.