40 lines
998 B
C#
40 lines
998 B
C#
using System.Runtime.CompilerServices;
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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Jobs;
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using PerfectNumbers.Core;
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namespace EvenPerfectBitScanner.Benchmarks;
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[SimpleJob(RuntimeMoniker.Net80, launchCount: 1, warmupCount: 1, iterationCount: 5)]
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[MemoryDiagnoser]
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public class Mod5ULongBenchmarks
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Mod5(ulong value) =>
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(
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(uint)(value & ULongExtensions.WordBitMask) +
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(uint)((value >> 16) & ULongExtensions.WordBitMask) +
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(uint)((value >> 32) & ULongExtensions.WordBitMask) +
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(uint)((value >> 48) & ULongExtensions.WordBitMask)
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) % 5;
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[Params(5UL, 8191UL, 131071UL, 2147483647UL, ulong.MaxValue - 31UL)]
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public ulong Value { get; set; }
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/// <summary>
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/// Fastest
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/// </summary>
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[Benchmark(Baseline = true)]
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public ulong ModuloOperator()
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{
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return Value % 5UL;
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}
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[Benchmark]
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public ulong ExtensionMethod()
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{
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return Mod5(Value);
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}
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}
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