53 lines
1.4 KiB
C#
53 lines
1.4 KiB
C#
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using BenchmarkDotNet.Attributes;
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using Umbraco.Tests.Benchmarks.Config;
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namespace Umbraco.Tests.Benchmarks;
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[QuickRunWithMemoryDiagnoserConfig]
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public class StringStartsWithBenchmarks
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{
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private string _domainName = "domain1.com";
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[Benchmark(Baseline = true)]
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public bool Original()
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{
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return _domainName.StartsWith("/");
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}
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[Benchmark()]
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public bool Ordinal()
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{
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return _domainName.StartsWith("/",StringComparison.Ordinal);
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}
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[Benchmark()]
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public bool Invariant()
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{
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return _domainName.StartsWith("/", StringComparison.InvariantCulture);
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}
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[Benchmark()]
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public bool FirstChar()
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{
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return _domainName.Length > 0 && _domainName[0] == '/';
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}
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[Benchmark()]
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public bool Span()
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{
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return _domainName.AsSpan().StartsWith("/".AsSpan(),StringComparison.Ordinal);
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}
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/*
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| Method | Mean | Error | StdDev | Allocated |
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|---------- |------------:|-----------:|----------:|----------:|
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| Original | 255.2239 ns | 10.9432 ns | 0.5998 ns | - |
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| Ordinal | 0.1784 ns | 0.3070 ns | 0.0168 ns | - |
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| Invariant | 4.1270 ns | 0.4990 ns | 0.0274 ns | - |
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| FirstChar | 0.0127 ns | 0.0098 ns | 0.0005 ns | - |
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| Span | 0.8000 ns | 0.4526 ns | 0.0248 ns | - |
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*/
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}
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