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add multi predictor support to l4, working for ver 5 of mat parallel

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This commit is contained in:
Youmu Liu
2026-04-09 18:07:49 +08:00
parent 0bad6bb480
commit f7187ca7fd
19 changed files with 653 additions and 187 deletions
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StgSharp.Common/HighPerformance/Memory/L4.Prefetch.cs
+4 -3
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@@ -36,14 +36,15 @@ namespace StgSharp.HighPerformance.Memory
private partial void Prefetch()
{
if (PrefetchPredict is null) {
if (CurrentPredict is null) {
return;
}
if (_activeCount > MaxActivateCacheLineCount) {
throw new OverflowException("Too many activated cache line in external reference.");
}
Span<CacheLinePrediction> span = new(_prediction, PredictionCount);
if (!PrefetchPredict.Predict(span, out int actualCount) && (actualCount <= 0))
PredictResult result = PrefetchPredict.Predict(span, out int actualCount);
if ((result == PredictResult.Exhausted) && (actualCount <= 0))
{
_exhausted = true;
return;
@@ -87,7 +88,7 @@ namespace StgSharp.HighPerformance.Memory
head->_origin = address;
head->_profile = handle.MapPolicy;
head->_refCount = 0;
head->_address = nuint & _data[index];
head->_address = (nuint)(_data + index);
// pre fetch them here
PrefetchPredict.Prefetch(head->_origin, head->_profile, new Span<byte>((byte*)head->_address, Unsafe.SizeOf<CacheLineData>()));