public void SampleWorkItems(long workItemsQueued, long workItemsProcessed)
{
GetCounter(STPPerformanceCounterType.WorkItems).Set(workItemsQueued + workItemsProcessed);
GetCounter(STPPerformanceCounterType.WorkItemsInQueue).Set(workItemsQueued);
GetCounter(STPPerformanceCounterType.WorkItemsProcessed).Set(workItemsProcessed);
GetCounter(STPPerformanceCounterType.WorkItemsQueuedPerSecond).Set(workItemsQueued);
GetCounter(STPPerformanceCounterType.WorkItemsProcessedPerSecond).Set(workItemsProcessed);
}