find a way to create Thread binded to LogicalCore properly

2026-04-14 18:08:22 +08:00
parent b07013a003
commit fdf11c729f
15 changed files with 228 additions and 254 deletions
@@ -0,0 +1,84 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="ThreadHelper"
+// Project: StgSharp
+// 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
+// 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 StgSharp.Common.HighPerformance.ProcessorAbstraction;
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Threading;
+
+namespace StgSharp.Threading
+{
+    public static partial class ThreadHelper
+    {
+
+        private static readonly int mainThreadId = Environment.CurrentManagedThreadId;
+
+        private static readonly ThreadLocal<bool> isNotMainThread = new(
+            () => Environment.CurrentManagedThreadId != mainThreadId);
+
+        static ThreadHelper()
+        {
+            EmptyThread.Start();
+        }
+
+        /// <summary>
+        ///   An individual thread doing nothing,  and its <see cref="Thread.IsAlive" /> <see
+        ///   langword="property" /> always returns false.
+        /// </summary>
+        public static Thread EmptyThread { get; } = new(() => { });
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void BindToLogicalCore(
+                           LogicalCore core
+        )
+        {
+            SetThreadAffinity(core.GlobalCpuId, core.NumaNodeId);
+        }
+
+        [Conditional("DEBUG")]
+        internal static void MainThreadAssert()
+        {
+            if (isNotMainThread.Value) {
+                throw new InvalidOperationException(
+                    $"Attempt to call sensitive operation which can be only called from main thread from thread  {Environment.CurrentManagedThreadId}.");
+            }
+        }
+
+#pragma warning disable CA5393
+
+        [LibraryImport(Native.LibName, EntryPoint = "sn_set_thread_affinity")]
+        [UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]
+        [DefaultDllImportSearchPaths(DllImportSearchPath.AssemblyDirectory)]
+        internal static partial void SetThreadAffinity(
+                                     uint globalCoreId,
+                                     uint numaNodeId
+        );
+
+#pragma warning restore CA5393
+    }
+}