34 lines
1.0 KiB
C#
34 lines
1.0 KiB
C#
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 Mod7UInt128Benchmarks
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{
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[Params(7UL, 8191UL, 131071UL, 2147483647UL, ulong.MaxValue - 127UL)]
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public UInt128 Value { get; set; }
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/// <summary>
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/// `% 7` baseline; timings clustered around 2.86-2.91 ns (2.860 ns at value 7, 2.887 ns at 8191, 2.873 ns at 131071,
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/// 2.878 ns at 2147483647, 2.915 ns near ulong.Max).
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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 (ulong)(Value % 7UL);
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}
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/// <summary>
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/// Extension helper; achieved 0.676 ns (value 7), 0.675 ns (8191), 0.722 ns (131071), 0.882 ns (2147483647), and 0.676 ns near
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/// ulong.Max—between 3.2x and 4.2x faster than the baseline.
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/// </summary>
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[Benchmark]
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public ulong ExtensionMethod()
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{
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return Value.Mod7();
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}
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}
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