is it must to ShutDown/Dispose STP?

[MatheswaranSagadevan]

Hi,
We recently explored STP, and started using it in one of our asp.net core application.
and our implementation is like, during particular object's constructor we configure/instantiate the smart thread pool with work item groups and min, max threads etc.

There are two questions:

1. We often face outofmemory exceptions, though we have 8 core, 16GB RAM with 1 TB HDD VM. any guidelines or best practices to adept ?
2. when to use ShutDown and Dispose methods. Since this is a web application, we as said above, configured, in one of our singleton class. so when to dispose? or shutdown?
3. I tried with destructor and it seems it didn't get called. Then I tried with application stopping event in asp.net core where I retrieve the singleton instance and called custom dispose method to shutdown and dispose stp. is this right approach?

Thanks,
Matheswaran S

[amibar]

Hi,

I assume that your application works like a service. Hence, always running and serve requests.

I think you should instatiate the smart thread pool only once in a singleton with min and max threads.
Later on create work item groups with the concurrency you need and queue work items into them.
Since your application work like a service (as I assumed) you don't need to call to shutdown or dispose at all.
When you stop the service you can use WaitForIdle() to wait for incompleted work items to finish.

Regards,
Ami

[MatheswaranSagadevan]

Great, you are right it is a service. and I'm fine to use WaitForIdle instead of shutdown.

and how about Memory management.? any best practices and troubleshooting tips? because we often face outofmemory exception.

[amibar]

The outofmemory exception is out of my scope.
I assume you get the exception becuase you get too many requests than you can handle so the backlog explodes.
Try to limit the backlog to avoid requests overflow.