mlemanczyk/even-perfect-numbers-scanner
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Extension methods benchmarked. Slower alternatives replaced.

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Marek Lemańczyk committed 2025-09-23 22:01:09 +02:00
1 parent 9becb8df67
commit 6e99ee39e3
40 files changed
+930 -1026
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EvenPerfectBitScanner.Benchmarks/Mod10_8_5_3PropertiesBenchmarks.cs
+6 -9
View File
@@ -1,4 +1,3 @@
using System.Numerics;
using System.Runtime.CompilerServices;
using BenchmarkDotNet.Attributes;
using PerfectNumbers.Core;
@@ -36,10 +35,13 @@ public class Mod10_8_5_3PropertiesBenchmarks
return rem >= 5UL ? rem - 5UL : rem;
}
[Params(3UL, 8191UL, 131071UL, 2147483647UL)]
[Params(3UL, 6UL, 128UL, 256UL, 2_047UL, 8_191UL, 65_535UL, 131_071UL, 2_147_483_647UL, ulong.MaxValue - 1_024UL, ulong.MaxValue - 511UL, ulong.MaxValue - 255UL, ulong.MaxValue - 127UL, ulong.MaxValue - 63UL, ulong.MaxValue - 31UL, ulong.MaxValue - 17UL)]
public ulong Value { get; set; }
[Benchmark(Baseline = true)]
/// <summary>
/// Fastest
/// </summary>
[Benchmark(Baseline = true)]
public (ulong Mod10, ulong Mod8, ulong Mod5, ulong Mod3) LegacyModulo()
{
UInt128 value = Value;
@@ -53,12 +55,7 @@ public class Mod10_8_5_3PropertiesBenchmarks
[Benchmark]
public (ulong Mod10, ulong Mod8, ulong Mod3, ulong Mod5) ModMethodModulo()
{
Value.Mod10_8_5_3(out var mod10, out ulong mod8, out ulong mod5, out ulong mod3);
Mod10R = mod10;
Mod8R = mod8;
Mod5R = mod5;
Mod3R = mod3;
Value.Mod10_8_5_3(out Mod10R, out Mod8R, out Mod5R, out Mod3R);
return (Mod10R, Mod8R, Mod3R, Mod5R);
}
}