Compress L4 metadata into 32 bytes

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

@@ -2,8 +2,8 @@
 // -----------------------------------------------------------------------
 // file="L4.Evict"
 // Project: StgSharp
-// AuthorGroup: Nitload Space
-// Copyright (c) Nitload Space. All rights reserved.
+// AuthorGroup: Nitload
+// Copyright (c) Nitload. All rights reserved.
 //     
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
@@ -25,18 +25,6 @@
 //     
 // -----------------------------------------------------------------------
 // -----------------------------------------------------------------------
-using StgSharp.Collections;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Numerics;
-using System.Runtime.Intrinsics;
-using System.Runtime.Intrinsics.X86;
-using System.Text;
-using System.Threading.Tasks;
-
-using Tlsf = StgSharp.HighPerformance.Memory.TwoLayerSegregatedFitAllocator;
-
 namespace StgSharp.HighPerformance.Memory
 {
     public partial class L4
@@ -52,7 +40,9 @@ namespace StgSharp.HighPerformance.Memory
         ///   Count of lines not evicted
         /// </returns>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private unsafe int Evict(int count = 1)
+        private unsafe int Evict(
+                           int count = 1
+        )
         {
             count = (count < 0) ? 0 : count;
             int* pPtr = _predictCount, mPtr = _mapCount;
@@ -71,7 +61,9 @@ namespace StgSharp.HighPerformance.Memory
         }
 
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private unsafe bool TryEvictAt(int index)
+        private unsafe bool TryEvictAt(
+                            int index
+        )
         {
             CacheLineMetadata* head = &_head[index];
             if (Interlocked.CompareExchange(ref head->RefCount, int.MinValue, 0) == 0)
@@ -79,7 +71,7 @@ namespace StgSharp.HighPerformance.Memory
                 // EvictLine(i + index);
                 _ = _map.TryRemove(head->Origin, out _);
                 IL4Predict predict = CurrentPredict;
-                predict.WriteBack(head->Origin, head->Profile, new ReadOnlySpan<byte>((byte*)(ulong)head->Position, (int)(ulong)head->SizeForAllocator));
+                predict.WriteBack(head->Origin, head->CustomizeProfile, new ReadOnlySpan<byte>((byte*)(ulong)(head->PositionMask + _baseAddress), (int)(ulong)head->SizeMask));
                 _bufferAllocator.Free(index);
                 _mapCount[index] = 0;
                 _predictCount[index] = int.MaxValue;