Misaki/Misaki.HighPerformance
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feat(memory): improve oversized alloc handling & cleanup

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Enhanced FreeList to handle oversized allocations by bypassing chunk management and allocating directly from the OS, with proper header assignment and immediate release on free. Updated IUnsafeCollection<T> documentation, removed unnecessary array clearing in Clear() methods, refined UnsafeSlotMap initialization logic, and removed redundant default element addition. Bumped assembly version to 1.5.1.
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Misaki
2026-03-18 20:12:41 +09:00
parent 7326c83948
commit 641b459997
8 changed files with 14 additions and 16 deletions
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17
Misaki.HighPerformance.LowLevel/Buffer/FreeList.cs
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@@ -540,10 +540,15 @@ public unsafe struct FreeList : IDisposable
ptr = TryPopFromBucket(cache, cacheIndex, bucketIndex);
}
}
if (ptr == null)
else
{
ptr = AllocateFromChunk(cacheIndex, totalSize, alignment);
// Oversized block: Bypass chunk linking entirely and go straight to the OS
ptr = AlignedAlloc(totalSize, alignment);
if (ptr != null)
{
// Pass null for ownerChunk so 'Free' knows this is a standalone allocation
AssignBlockHeader((BlockHeader*)ptr, null, totalSize, cacheIndex);
}
}
if (ptr == null)
@@ -604,10 +609,10 @@ public unsafe struct FreeList : IDisposable
if (bucketIndex < 0)
{
header->ownerChunk = null;
header->blockSize = 0;
// This is an oversized allocation. It doesn't belong to a bucket or a chunk.
// Erase the magic number for safety and instantly yield it back to the OS.
header->magicNumber = 0;
header->ownerCacheIndex = 0;
AlignedFree(blockStartPtr);
return;
}