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hlsf goes bad

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This commit is contained in:
Youmu Liu
2026-05-08 18:09:12 +08:00
parent 8aa319a120
commit d1aca8f745
47 changed files with 5020 additions and 446 deletions
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StgSharp.Common/HighPerformance/Memory/HLSFAllocator.Alloc.cs
+25 -11
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@@ -53,13 +53,13 @@ namespace StgSharp.HighPerformance.Memory
Entry* entry = null;
nuint requestedOffset = GetAllocSize(size);
(int level, int segment) = GetIndexPairOnce(size);
int index = (3 * level) + segment;
int index = int.Min((3 * level) + segment, _bucketHeads.Length);
int i = index;
while ((i < _bucketHeads.Length) && !TryPopLevelForAllocation(index, out entry)) {
while ((i < _bucketHeads.Length) && !TryPopLevelForAllocation(i, out entry)) {
i++;
}
if ((i > _maxLevel) && !TryAllocateNewBlock(requestedOffset, out entry)) {
throw new OverflowException("Out of memory: Unable to allocate new 16MB block or find suitable bucket for allocation.");
if ((i >= _bucketHeads.Length) && !TryAllocateNewBlock(requestedOffset, out entry)) {
throw new OverflowException($"Out of memory: unable to satisfy request of {size} B (aligned {requestedOffset} B) from existing buckets or spare memory.");
}
if (entry != null)
{
@@ -96,13 +96,13 @@ namespace StgSharp.HighPerformance.Memory
Entry* entry = null;
nuint requestedOffset = GetAllocSize(size);
(int level, int segment) = GetIndexPairOnce(size);
int index = (3 * level) + segment;
int index = int.Min((3 * level) + segment, _bucketHeads.Length);
int i = index;
while ((i < _bucketHeads.Length) && !TryPopLevelForAllocation(index, out entry)) {
while ((i < _bucketHeads.Length) && !TryPopLevelForAllocation(i, out entry)) {
i++;
}
if ((i > _maxLevel) && !TryAllocateNewBlock(requestedOffset, out entry)) {
throw new OverflowException("Out of memory: Unable to allocate new 16MB block or find suitable bucket for allocation.");
if ((i >= _bucketHeads.Length) && !TryAllocateNewBlock(requestedOffset, out entry)) {
throw new OverflowException($"Out of memory: unable to satisfy request of {size} B (aligned {requestedOffset} B) from existing buckets or spare memory.");
}
if (entry != null)
@@ -138,10 +138,24 @@ namespace StgSharp.HighPerformance.Memory
{
Entry* next = e;
nuint remain = sizeToSlice; // remained size to slice
nuint offset = e->Position - sizeToSlice - ((nuint)m_Buffer); // offset of buffer to slice
nuint end = e->Position - ((nuint)m_Buffer); // end offset of buffer to slice
nuint offset = e->Position - sizeToSlice - ((nuint)m_Buffer); // offset of buffer to slice
nuint position = e->Position - sizeToSlice; // position of buffer to slice
nuint end = e->Position - ((nuint)m_Buffer); // end offset of buffer to slice
int i = (BitOperations.TrailingZeroCount(offset) - 6) / 2;
int i = GetBucketIndexOnce(sizeToSlice);
Entry* entry = (Entry*)_entries.Allocate();
SetEntryLevel(entry, position, remain);
entry->State = EntryState.Empty;
BucketNode* bucketNode = (BucketNode*)entry->Position;
bucketNode->EntryRef = entry;
PushNodeToBucket(i, bucketNode);
Entry* prev = next->PreviousNear;
prev->NextNear = entry;
entry->PreviousNear = prev;
entry->NextNear = next;
next->PreviousNear = entry;
}
/// <summary>