A system includes a memory, at least one processor in communication with the memory, a counter, and a scheduler. The scheduler is configured to classify a thread of the pool of threads as a first classification as either available or unavailable. Additionally, the scheduler is configured to classify the pool of threads, based on a counter value from the counter, as a second classification less than a configured core thread pool size, equal to or larger than the configured core thread pool size but less than a maximum core thread pool size, or equal to or larger than the maximum core thread pool size. The scheduler is also configured to classify a resistance factor as a third classification as either within a limit or outside the limit, and schedule a work order based on at least one of the classifications.