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Compress L4 metadata into 32 bytes

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This commit is contained in:
Youmu Liu
2026-06-02 18:27:58 +08:00
parent 07f8178431
commit 9f3fc3b345
7 changed files with 156 additions and 135 deletions
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StgSharp.Common/HighPerformance/Memory/L4.cs
+19 -7
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@@ -2,8 +2,8 @@
// -----------------------------------------------------------------------
// file="L4"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
// 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
@@ -69,8 +69,15 @@ namespace StgSharp.HighPerformance.Memory
private readonly TLSF _bufferAllocator;
public L4(int bindedNuma, nuint bufferSize = 8192 * 8192, int align = 16, nuint maxCacheLineSize = 8192)
public L4(
int bindedNuma,
uint bufferSize = 8192 * 8192,
int align = 16,
uint maxCacheLineSize = 8192
)
{
ArgumentOutOfRangeException.ThrowIfGreaterThan(bufferSize, CacheLineMetadata.MaxBufferSize);
ArgumentOutOfRangeException.ThrowIfGreaterThan(maxCacheLineSize, CacheLineMetadata.MaxBufferSize);
_bindedNuma = bindedNuma;
// init order is fallow by align requirement of each component.
@@ -116,7 +123,9 @@ namespace StgSharp.HighPerformance.Memory
// public IL4Predict PrefetchPredict { get; set; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void ContinueOnce(Handle line)
public void ContinueOnce(
Handle line
)
{
if (line.Address > 0) {
_ = Interlocked.Decrement(ref _aheadCount);
@@ -149,7 +158,9 @@ namespace StgSharp.HighPerformance.Memory
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public Handle Map(ref CacheLineDescription prediction)
public Handle Map(
ref CacheLineDescription prediction
)
{
if ((_aheadCount < PredictionLeastAhead) && !_exhausted)
{
@@ -179,8 +190,9 @@ namespace StgSharp.HighPerformance.Memory
{
_predictCount[entry - _head] = 0;
_ = Interlocked.Decrement(ref _aheadCount);
_ = Interlocked.Decrement(ref (*_mapCount)[entry->Id]);
return new Handle((nuint)entry->Position, ref entry->RefCount);
_ = Interlocked.Decrement(ref _mapCount[entry - _head]);
nuint* hPtr = stackalloc nuint[2] { entry->PositionMask + _baseAddress, (nuint)entry };
return *(Handle*)hPtr;
} else
{
_ = Interlocked.Decrement(ref entry->RefCount);