gistfile1.cs

 public void ForcedFullGarbageCollection() {
            var size = GC.GetTotalMemory(false);
            for (var i = 0; i < 100; ++i) {
                GC.Collect();
                GC.WaitForFullGCComplete();
                GC.WaitForPendingFinalizers();
                var newSize = GC.GetTotalMemory(false);
                var delta = (size - newSize) / (double)size;
                if (delta < 0.01)
                    break;
            }
        }