L4 is now on new algo, using new eviction arrays, using union of hlsf and cache line head.

StgSharp.Common/HighPerformance/Memory/L4.CacheLine.cs

@@ -35,10 +35,18 @@ namespace StgSharp.HighPerformance.Memory
     {
 
         [InlineArray(CacheLineCount)]
-        private struct EvictionArray
+        private struct PredictionArray
         {
 
-            private byte pprv;
+            private short PredictionCount;
+
+        }
+
+        [InlineArray(CacheLineCount)]
+        private struct MapArray
+        {
+
+            private short MapCount;
 
         }
 
@@ -51,8 +59,8 @@ namespace StgSharp.HighPerformance.Memory
             #region reference counting and state information
 
             [FieldOffset(52)] internal int RefCount;
-            [FieldOffset(56)] internal int RemainingPredictionCount;
-            [FieldOffset(60)] internal int Id;
+            [FieldOffset(60)] private readonly int Reverse;
+            [FieldOffset(56)] internal int Id;
 
             #endregion