55 lines
1.0 KiB
C#
55 lines
1.0 KiB
C#
using BenchmarkDotNet.Attributes;
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using System.Runtime.CompilerServices;
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#pragma warning disable CA1822
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namespace Recyclable.Collections.Benchmarks.POC
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{
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public class LessOperatorVsAndOperatorBenchmarks
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{
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private const int bitShift = 1 << 31;
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private static readonly Random _rnd = new(1);
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private static int num = -Math.Abs(_rnd.Next());
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public void Setup()
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{
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num = -1;
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Console.WriteLine($"*** We're comparing if {num} is < 0 ***");
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}
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public void Cleanup() { }
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#pragma warning disable RCS1163, IDE0060
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[MethodImpl(MethodImplOptions.NoInlining)]
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private static void DoNothing<T>(T item)
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{
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}
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#pragma warning restore RCS1163
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[Benchmark(Baseline = true)]
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public void CompareWithLess()
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{
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DoNothing(num < 0);
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}
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[Benchmark]
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public void CompareWithAnd()
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{
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DoNothing((num & bitShift) != 0);
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}
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[Benchmark]
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public void CompareWithEqual()
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{
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DoNothing(num == -1);
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}
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[Benchmark]
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public void CompareToZero()
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{
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DoNothing(num == 0);
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}
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}
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}
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