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Refactor JobExecutionContext, add scheduler state support

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- Refactored JobExecutionContext to use init-only properties and added State and SelfHandle for richer context.
- Updated JobInfo field layout for clarity and memory alignment.
- JobScheduler now accepts and exposes an optional state object, passed to each job context.
- Improved memory management by using _freeList for allocations and disposal.
- WorkerThread and benchmarks updated to use new JobExecutionContext pattern.
- Bumped version to 1.6.1 and performed minor code cleanup.
This commit is contained in:
Misaki
2026-04-17 19:49:42 +09:00
parent ebee3bb7fb
commit d5616daa05
8 changed files with 164 additions and 32 deletions
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14
Misaki.HighPerformance.Jobs/JobExecutionContext.cs
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@@ -4,17 +4,21 @@ public readonly ref struct JobExecutionContext
{
public int ThreadIndex
{
get;
get; init;
}
public IJobScheduler JobScheduler
{
get;
get; init;
}
public JobExecutionContext(int threadIndex, IJobScheduler jobScheduler)
public object? State
{
ThreadIndex = threadIndex;
JobScheduler = jobScheduler;
get; init;
}
public JobHandle SelfHandle
{
get; init;
}
}

6
Misaki.HighPerformance.Jobs/JobInfo.cs
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@@ -84,6 +84,9 @@ internal unsafe struct JobInfo
public const int MAX_DEPENDENTS = 8;
public void* pJobData;
public JobExecutionFunc pExecutionFunc;
// The list of jobs that are waiting for THIS job to complete.
public fixed int dependentsID[MAX_DEPENDENTS]; // The actual list of IDs
public fixed int dependentsGeneration[MAX_DEPENDENTS]; // The actual list of generations
@@ -93,9 +96,6 @@ internal unsafe struct JobInfo
public JobRanges jobRanges;
public void* pJobData;
public JobExecutionFunc pExecutionFunc;
public int state;
public int remainingBatches;

14
Misaki.HighPerformance.Jobs/JobScheduler.cs
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@@ -5,7 +5,6 @@ using Misaki.HighPerformance.LowLevel.Utilities;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Misaki.HighPerformance.Jobs;
@@ -26,9 +25,12 @@ public sealed unsafe partial class JobScheduler : IJobScheduler, IDisposable
private readonly SemaphoreSlim _workSignal;
private readonly CancellationTokenSource _cts;
private readonly object? _state;
private bool _disposed = false;
internal bool IsCancellationRequested => _cts.IsCancellationRequested;
internal object? State => _state;
public int WorkerCount => _workerThreads.Length;
@@ -37,7 +39,8 @@ public sealed unsafe partial class JobScheduler : IJobScheduler, IDisposable
/// </summary>
/// <param name="threadCount">The number of worker threads to create. If less than 1, at least one thread will be created.</param>
/// <param name="priority">The priority of the worker threads.</param>
public JobScheduler(int threadCount, ThreadPriority priority = ThreadPriority.Normal)
/// <param name="state">The state object for the job scheduler.</param>
public JobScheduler(int threadCount, ThreadPriority priority = ThreadPriority.Normal, object? state = null)
{
var workerCount = Math.Max(1, threadCount);
@@ -49,6 +52,8 @@ public sealed unsafe partial class JobScheduler : IJobScheduler, IDisposable
_workSignal = new SemaphoreSlim(0);
_cts = new CancellationTokenSource();
_state = state;
_workerThreads = new WorkerThread[workerCount];
for (var i = 0; i < workerCount; i++)
@@ -308,6 +313,8 @@ public sealed unsafe partial class JobScheduler : IJobScheduler, IDisposable
}
}
info.additionalDependents.Dispose();
_freeList.Free(info.pJobData);
_jobInfoPool.Remove(handle.ID, handle.Generation);
}
@@ -573,10 +580,11 @@ public sealed unsafe partial class JobScheduler : IJobScheduler, IDisposable
{
if (info.pJobData != null)
{
NativeMemory.Free(info.pJobData);
_freeList.Free(info.pJobData);
}
}
_freeList.Dispose();
_workSignal.Dispose();
_cts.Dispose();

2
Misaki.HighPerformance.Jobs/Misaki.HighPerformance.Jobs.csproj
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@@ -6,7 +6,7 @@
<Nullable>enable</Nullable>
<AllowUnsafeBlocks>True</AllowUnsafeBlocks>
<GeneratePackageOnBuild>True</GeneratePackageOnBuild>
<AssemblyVersion>1.6.0</AssemblyVersion>
<AssemblyVersion>1.6.1</AssemblyVersion>
<Version>$(AssemblyVersion)</Version>
<Authors>Misaki</Authors>
<PackageProjectUrl>https://git.personalnas.com/Misaki/Misaki.HighPerformance.git</PackageProjectUrl>

9
Misaki.HighPerformance.Jobs/WorkerThread.cs
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@@ -106,7 +106,14 @@ internal class WorkerThread : IDisposable
if (jobInfo.pExecutionFunc != null)
{
var ctx = new JobExecutionContext(_index, _scheduler);
var ctx = new JobExecutionContext
{
ThreadIndex = _index,
JobScheduler = _scheduler,
State = _scheduler.State,
SelfHandle = handle,
};
if (!jobInfo.pExecutionFunc(jobInfo.pJobData, ref jobInfo.jobRanges, ref jobInfo.remainingBatches, in ctx))
{
// If the job returns false, it means it we are not the last worker to process this job, so we should not mark it as complete yet.

3
Misaki.HighPerformance.Test/Benchmark/SPMDBenchmark.cs
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@@ -94,7 +94,6 @@ public unsafe class SPMDBenchmark
height = _SIZE,
};
var ctx = new JobExecutionContext(-1, _scheduler);
job.Run(_SIZE * _SIZE, in ctx);
job.Run(_SIZE * _SIZE, default);
}
}

143
Misaki.HighPerformance.Test/Program.cs
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@@ -1,21 +1,136 @@
using Misaki.HighPerformance.LowLevel.Buffer;
using Misaki.HighPerformance.LowLevel.Collections;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
//BenchmarkRunner.Run<SPMDBenchmark>();
//AllocationManager.Initialize(AllocationManagerInitOpts.Default);
//var set = new UnsafeBitSet(100, AllocationHandle.Persistent, AllocationOption.Clear);
//set.SetBit(0);
//Console.WriteLine(set.NextSetBit(0));
AllocationManager.Initialize(AllocationManagerInitOpts.Default);
var set = new UnsafeBitSet(100, AllocationHandle.Persistent, AllocationOption.Clear);
set.SetBit(0);
Console.WriteLine(set.NextSetBit(0));
//set.Dispose();
//AllocationManager.Dispose();
set.Dispose();
AllocationManager.Dispose();
var span = Span<int>.Empty;
unsafe
{
fixed (int* ptr = span)
{
Console.WriteLine((IntPtr)ptr);
}
}
//unsafe
//{
// var testC = new TestC();
// testC.BindToVtables();
// testC.MyValue = 42;
// // 1. Casting to IB (Direct cast, offset 0)
// var pB = (IB.Interface*)&testC;
// pB->MethodA();
// pB->MethodB();
// // 2. Casting to IC (Pointer adjustment needed!)
// // We must offset the pointer by the size of one void* so it points to lpVtbl_IC
// var pC = (IC.Interface*)((byte*)&testC + sizeof(void*));
// pC->MethodC();
//}
//public interface IA
//{
// [StructLayout(LayoutKind.Sequential)]
// unsafe struct Interface
// {
// public void** lpVtbl;
// public void MethodA() => ((delegate*<Interface*, void>)lpVtbl[0])((Interface*)Unsafe.AsPointer(ref this));
// }
//}
//public interface IB : IA
//{
// [StructLayout(LayoutKind.Sequential)]
// new unsafe struct Interface
// {
// public void** lpVtbl;
// // IA Methods
// public void MethodA() => ((delegate*<Interface*, void>)lpVtbl[0])((Interface*)Unsafe.AsPointer(ref this));
// // IB Methods
// public void MethodB() => ((delegate*<Interface*, void>)lpVtbl[1])((Interface*)Unsafe.AsPointer(ref this));
// }
//}
//public interface IC
//{
// [StructLayout(LayoutKind.Sequential)]
// unsafe struct Interface
// {
// public void** lpVtbl;
// public void MethodC() => ((delegate*<Interface*, void>)lpVtbl[0])((Interface*)Unsafe.AsPointer(ref this));
// }
//}
//[StructLayout(LayoutKind.Sequential)]
//public unsafe partial struct TestC
//{
// // Offset 0: Primary VTable (Covers IB and IA)
// public void** lpVtbl_IB;
// // Offset 8 (on 64-bit): Secondary VTable (Covers IC)
// public void** lpVtbl_IC;
// // Offset 16: Fields
// public int MyValue;
//}
//public unsafe partial struct TestC
//{
// public struct Vtbl_IB
// {
// public delegate*<IB.Interface*, void> MethodA;
// public delegate*<IB.Interface*, void> MethodB;
// }
// public struct Vtbl_IC
// {
// public delegate*<IC.Interface*, void> MethodC;
// }
// [FixedAddressValueType]
// public static readonly Vtbl_IB Table_IB = new Vtbl_IB
// {
// MethodA = &Native_MethodA,
// MethodB = &Native_MethodB
// };
// [FixedAddressValueType]
// public static readonly Vtbl_IC Table_IC = new Vtbl_IC
// {
// MethodC = &Native_MethodC
// };
// public void BindToVtables()
// {
// fixed (Vtbl_IB* pIB = &Table_IB)
// lpVtbl_IB = (void**)pIB;
// fixed (Vtbl_IC* pIC = &Table_IC)
// lpVtbl_IC = (void**)pIC;
// }
// // --- IB & IA Implementations ---
// public static void Native_MethodA(IB.Interface* self)
// {
// // For IB/IA, no adjustment is needed because lpVtbl_IB is at offset 0
// var pThis = (TestC*)self;
// Console.WriteLine($"MethodA called. MyValue: {pThis->MyValue}");
// }
// public static void Native_MethodB(IB.Interface* self)
// {
// var pThis = (TestC*)self;
// Console.WriteLine($"MethodB called. MyValue: {pThis->MyValue}");
// }
// // --- IC Implementations ---
// public static void Native_MethodC(IC.Interface* self)
// {
// // WARNING: 'self' points to the lpVtbl_IC field, NOT the start of TestC!
// // We must shift the pointer backward by the size of lpVtbl_IB (sizeof(void*))
// // to reconstruct the original TestC pointer, otherwise we read garbage memory.
// var pThis = (TestC*)((byte*)self - sizeof(void*));
// Console.WriteLine($"MethodC called. MyValue: {pThis->MyValue}");
// }
//}

3
Misaki.HighPerformance.Test/UnitTest/Jobs/TestJobSystem.cs
View File

@@ -275,8 +275,7 @@ public unsafe class TestJobSystem
height = size,
};
var ctx = new JobExecutionContext(-1, s_jobScheduler);
vectorJob.Run(size * size, in ctx);
vectorJob.Run(size * size, default);
var spmdBuf = stackalloc float[size * size];
var ss = new Span<float>(spmdBuf, size * size);