Misaki/Misaki.HighPerformance
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Refactor memory management in AllocationManager

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Changed the `AllocationManager` to use `ThreadLocal<DynamicArena>` for thread-specific memory allocation.
Changed the `Initialize` method to directly validate `initialSize` and initialize the thread-local arena.
Changed the `Allocate` and `Realloc` methods to utilize the thread-local arena for memory operations.
Changed the `Free` method to remove unnecessary locking due to thread-local management.
Added a new private method `EnsureInitialized` to verify the initialization of the thread-local arena.
Added a public static method `ResetAll` to reset all thread-local arenas.
Changed the `ResetCurrent` method to reset only the current thread's arena.
Updated the `Dispose` method to clean up all thread-local arenas and clear the allocated dictionary.
Uncommented the `UNSAFE_COLLECTION_CHECK` directive for enhanced debugging checks in `AllocationManager`.
Changed `CollectionBenchmark` to call `AllocationManager.ResetCurrent()` after populating the `UnsafeArray<int>`.
This commit is contained in:
Misaki
2025-04-11 16:41:28 +09:00
parent 691a336111
commit d306f183de
2 changed files with 49 additions and 36 deletions
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84
Misaki.HighPerformance.Unsafe/Buffer/AllocationManager.cs
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@@ -1,6 +1,7 @@
//#define UNSAFE_COLLECTION_CHECK
#define UNSAFE_COLLECTION_CHECK
using Misaki.HighPerformance.Unsafe.Collections;
using System.Runtime.CompilerServices;
#if UNSAFE_COLLECTION_CHECK
#if DEBUG
using System.Diagnostics;
@@ -12,34 +13,37 @@ namespace Misaki.HighPerformance.Unsafe.Buffer;
// TODO: Custom allocator
public static unsafe class AllocationManager
{
private const uint _DEFAULT_ARENA_SIZE = 512 * 1024; // 512 KB
private static DynamicArena _arena;
private static bool _initialized;
private const uint _DEFAULT_ARENA_SIZE = 512 * 1024;
private static ThreadLocal<DynamicArena>? _threadLocalArena;
#if UNSAFE_COLLECTION_CHECK
private static Dictionary<IntPtr, MemoryLeakExceptionInfo> _allocated = null!;
#endif
//private static readonly Lock _lock = new();
/// <summary>
/// Initializes the AllocationManager with a specified initial size for the memory arena.
/// </summary>
/// <param name="initialSize">The initial size in bytes for the memory arena.</param>
public static void Initialize(uint initialSize = _DEFAULT_ARENA_SIZE)
{
if (_initialized || initialSize <= 0)
if (initialSize <= 0)
{
return;
}
_arena = new DynamicArena(initialSize);
_threadLocalArena = new ThreadLocal<DynamicArena>(() => new DynamicArena(initialSize), true);
#if UNSAFE_COLLECTION_CHECK
_allocated = new Dictionary<nint, MemoryLeakExceptionInfo>(32);
#endif
}
_initialized = true;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static void EnsureInitialized()
{
if (_threadLocalArena == null)
{
throw new InvalidOperationException("The AllocationManager has not been initialized.");
}
}
public static T* Allocate<T>(uint size, uint alignSize, Allocator allocator, AllocationOption allocationOption)
@@ -50,18 +54,13 @@ public static unsafe class AllocationManager
return (T*)AlignedAlloc(size, alignSize);
}
if (!_initialized)
{
Initialize();
}
EnsureInitialized();
//lock (_lock)
//{
T* buffer;
switch (allocator)
{
case Allocator.Temp:
buffer = (T*)_arena.Allocate(size * (uint)sizeof(T), alignSize, allocationOption);
buffer = (T*)_threadLocalArena!.Value.Allocate(size * (uint)sizeof(T), alignSize, allocationOption);
break;
case Allocator.Persistent:
@@ -90,24 +89,18 @@ public static unsafe class AllocationManager
}
return buffer;
//}
}
public static T* Realloc<T>(T* buffer, uint size, uint alignSize, Allocator allocator)
where T : unmanaged
{
if (!_initialized)
{
throw new InvalidOperationException("The AllocationManager has not been initialized.");
}
EnsureInitialized();
//lock (_lock)
//{
T* newBuffer;
switch (allocator)
{
case Allocator.Temp:
newBuffer = (T*)_arena.Allocate(size * (uint)sizeof(T), alignSize, AllocationOption.None);
newBuffer = (T*)_threadLocalArena!.Value.Allocate(size * (uint)sizeof(T), alignSize, AllocationOption.None);
break;
case Allocator.Persistent:
@@ -134,13 +127,10 @@ public static unsafe class AllocationManager
}
return newBuffer;
//}
}
public static void Free(void* ptr, Allocator allocator)
{
//lock (_lock)
//{
if (allocator == Allocator.Persistent)
{
AlignedFree(ptr);
@@ -148,15 +138,34 @@ public static unsafe class AllocationManager
_allocated.Remove((IntPtr)ptr);
#endif
}
//}
}
/// <summary>
/// Resets the memory arena, optionally clearing the allocated memory.
/// Resets the memory arenas on all of the threads.
/// </summary>
public static void Reset()
public static void ResetAll()
{
_arena.Reset();
if (_threadLocalArena == null)
{
return;
}
foreach (var arena in _threadLocalArena.Values)
{
arena.Reset();
}
}
/// <summary>
/// Resets the current thread-local arena.
/// </summary>
public static void ResetCurrent()
{
if (_threadLocalArena == null)
{
return;
}
_threadLocalArena.Value.Reset();
}
/// <summary>
@@ -167,12 +176,17 @@ public static unsafe class AllocationManager
#endif
public static void Dispose()
{
if (!_initialized)
if (_threadLocalArena == null)
{
return;
}
_arena.Dispose();
foreach (var arena in _threadLocalArena.Values)
{
arena.Dispose();
}
_threadLocalArena.Dispose();
#if UNSAFE_COLLECTION_CHECK
nuint unfreeBytes = 0u;
@@ -189,7 +203,5 @@ public static unsafe class AllocationManager
_allocated.Clear();
#endif
_initialized = false;
}
}