Daily update on 20260308-235635 by Nitload Youmu. Additional Message : designing types for L4 function mosule

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>

StgSharp.Common/Global.cs

@@ -2,8 +2,8 @@
 // -----------------------------------------------------------------------
 // file="Global"
 // Project: StgSharp
-// AuthorGroup: Nitload
-// Copyright (c) Nitload. All rights reserved.
+// AuthorGroup: Nitload Space
+// Copyright (c) Nitload Space. 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
@@ -26,10 +26,10 @@
 // -----------------------------------------------------------------------
 // -----------------------------------------------------------------------
 global using StgSharp.Internal;
-global 
 
-using System.Diagnostics.CodeAnalysis;
-using System.Runtime.CompilerServices;
+global using System;
+global using System.Runtime.CompilerServices;
+global using System.Threading;
 
 [assembly: InternalsVisibleTo("StgSharp.Mathematics")]
 [assembly: InternalsVisibleTo("StgSharp.RegularAnalysis")]

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

@@ -0,0 +1,102 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="L4.CommandQueue"
+// Project: StgSharp
+// AuthorGroup: Nitload Space
+// Copyright (c) Nitload Space. 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
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//     
+// -----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.HighPerformance.Memory
+{
+    public unsafe partial class L4
+    {
+
+        private CommandQueue _commandQueue;
+
+        private struct CommandQueue
+        {
+
+            private CommandCache* ReadCache;
+
+            private int _curRead;
+            private int _curWrite;
+
+            /// <summary>
+            ///   Try get a next command to execute
+            /// </summary>
+            /// <param name="command">
+            ///   pointer to next command
+            /// </param>
+            /// <returns>
+            ///   True if there is a command to execute, otherwise false
+            /// </returns>
+            public bool TryDequeue(out nint command)
+            {
+                if (_curRead >= 64)
+                {
+                    // next cache
+                    CommandCache* next = ReadCache->Next;
+                }
+
+                // current cache
+                command = default;
+                return true;
+            }
+
+        }
+
+        private struct CommandCache
+        {
+
+            public CommandCache* Next;
+
+            public CommandCache* Prev;
+            public CommandArray Commands;
+
+        }
+
+        [InlineArray(64)]
+        private struct CommandArray
+        {
+
+            public Command Command0;
+
+        }
+
+        private struct Command
+        {
+
+            public int CommandType;
+            public nint Destination;
+            public nint Source;
+
+        }
+
+    }
+}

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

@@ -0,0 +1,83 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="L4.EvictionRing"
+// Project: StgSharp
+// AuthorGroup: Nitload Space
+// Copyright (c) Nitload Space. 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
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//     
+// -----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.HighPerformance.Memory
+{
+    public partial class L4
+    {
+
+        private EvictionRing _ring ;
+
+        private unsafe class EvictionRing
+        {
+
+            private nint[] _bucket;
+
+            public void AddNode(EvictionRingNode* node)
+            {
+                nint address = node->_address;
+                int hash = (int)(address % (nint)_bucket.Length);
+                nint head = _bucket[hash];
+                if (head != 0)
+                {
+                    EvictionRingNode* headNode = (EvictionRingNode*)head;
+                    headNode->_prev = node;
+                    node->_next = headNode;
+                }
+                _bucket[hash] = address;
+            }
+
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        private unsafe struct EvictionRingNode
+        {
+
+            public EvictionRingNode* _next;
+            public EvictionRingNode* _prev;
+            public int _level;
+            public int _refCount;
+            public nint _address;
+
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            public void IncrementRefCount()
+            {
+                _ = Interlocked.Increment(ref _refCount);
+            }
+
+        }
+
+    }
+}

StgSharp.Common/HighPerformance/Memory/L4.cs

@@ -26,6 +26,7 @@
 // -----------------------------------------------------------------------
 // -----------------------------------------------------------------------
 using StgSharp.Collections;
+using StgSharp.Mathematics.Memory;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -34,25 +35,21 @@ using System.Threading.Tasks;
 
 namespace StgSharp.HighPerformance.Memory
 {
-    public unsafe class L4
+    public unsafe partial class L4
     {
 
         private readonly byte* _buffer;
         private readonly SwissTable _map;
 
-        public nint MapMemory(nint address)
+        private SlabAllocator<EvictionRingNode> EntryAllocator { get; set; }
+
+        private SlabAllocator<CacheLine> CacheLineAllocator { get; set; }
+
+        public struct CacheLine
         {
-            if (_map.TryGet(address, out nint ptr))
-            {
-                return ptr;
-            } else
-            {
-                /*
-                 * register a request for memory mapping, 
-                 * and return a pointer to the mapped memory.
-                 */
-                return 0;
-            }
+
+            public fixed byte Data[64];
+
         }
 
     }

StgSharp.Common/HighPerformance/Memory/L4_design.md

@@ -26,7 +26,7 @@ L4 缓存器是一个纯软件实现的**线程本地数据缓存层**，
 ### 1.3 设计目标
 
 - 为逐线程矩阵计算上下文提供 NUMA 友好的本地数据访问
-- 固定容量（5-10 MB），不做运行时扩容，确定性延迟
+- 固定容量（64 MB），不做运行时扩容，确定性延迟
 - 透明的指针重定向：上层代码通过原始指针查找，L4 返回本地缓存指针
 - 基于热度的缓存逐出策略，保留高频访问数据
 
@@ -76,7 +76,7 @@ L4 缓存器是一个纯软件实现的**线程本地数据缓存层**，
 
 | 参数               | 值                    | 说明                              |
 |-------------------|-----------------------|-----------------------------------|
-| 缓存区总容量       | 5-10 MB               | 线程本地连续内存                   |
+| 缓存区总容量       | 64 MB               | 线程本地连续内存                   |
 | 缓存行大小         | 8192 Bytes            | = 64 个 `double MAT_KERNEL` 的大小 |
 | 映射表类型         | Swiss Table           | 65536 桶 × 16 槽，SIMD 加速       |
 | 缓存行存储池       | Slab Allocator        | 非并发、固定容量、不自动扩容       |