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Remove per-thread factorization cache

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Marek Lemańczyk committed 2025-10-20 19:08:44 +02:00
1 parent 20f30dc182
commit 28ff9292b8
5 files changed
+17 -248
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PerfectNumbers.Core/ThreadStaticPools.cs
-67
View File
@@ -31,17 +31,6 @@ namespace PerfectNumbers.Core
}
[ThreadStatic]
private static ArrayPool<KeyValuePair<ulong, int>>? _factorKeyValuePairPool;
public static ArrayPool<KeyValuePair<ulong, int>> FactorKeyValuePairPool
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get
{
return _factorKeyValuePairPool ??= ArrayPool<KeyValuePair<ulong, int>>.Create();
}
}
[ThreadStatic]
private static MersenneCpuDivisorScanSession? _mersenneCpuDivisorSession;
@@ -278,62 +267,6 @@ namespace PerfectNumbers.Core
pool.Add(dictionary);
}
[ThreadStatic]
private static Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry>? _mersenneFactorCacheDictionary;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry> RentMersenneFactorCacheDictionary()
{
Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry>? cache = _mersenneFactorCacheDictionary;
if (cache is null)
{
return new Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry>(8);
}
_mersenneFactorCacheDictionary = null;
cache.Clear();
return cache;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void ReturnMersenneFactorCacheDictionary(Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry> cache)
{
for (Dictionary<ulong, MersenneDivisorCycles.FactorCacheEntry>.Enumerator enumerator = cache.GetEnumerator(); enumerator.MoveNext();)
{
enumerator.Current.Value.ReturnToPool();
}
cache.Clear();
_mersenneFactorCacheDictionary = cache;
}
[ThreadStatic]
private static MersenneDivisorCycles.FactorCacheEntry? _factorCacheEntryPoolHead;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static MersenneDivisorCycles.FactorCacheEntry RentFactorCacheEntry()
{
MersenneDivisorCycles.FactorCacheEntry? entry = _factorCacheEntryPoolHead;
if (entry is null)
{
entry = new MersenneDivisorCycles.FactorCacheEntry();
}
else
{
_factorCacheEntryPoolHead = entry.Next;
}
entry.Reset();
return entry;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void ReturnFactorCacheEntry(MersenneDivisorCycles.FactorCacheEntry entry)
{
entry.Next = _factorCacheEntryPoolHead;
_factorCacheEntryPoolHead = entry;
}
[ThreadStatic]
private static Dictionary<ulong, int>? _factorCountDictionary;