# System.Threading

``` diff
 namespace System.Threading {
     public static class Monitor {
+        public static long LockContentionCount { get; }
     }
     public static class ThreadPool {
+        public static long CompletedWorkItemCount { get; }
+        public static long PendingWorkItemCount { get; }
+        public static int ThreadCount { get; }
     }
 }
```

