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StringEqualizator.md

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Comparing two strings, == vs string.Equals

  • OpEquality: == operator
  • Equals: string.Equals(string, string)
  • EqualsOrdinal: string.Equals(string, string, StringComparison) (ordinal comparison)
BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19045
Intel Core i7-7820HQ CPU 2.90GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=7.0.101
  [Host]     : .NET 6.0.12 (6.0.1222.56807), X64 RyuJIT
  DefaultJob : .NET 6.0.12 (6.0.1222.56807), X64 RyuJIT
Method Strings Mean Error StdDev Ratio RatioSD
OpEquality ([zD(...)qMM) [260] 0.7023 ns 0.0471 ns 0.0560 ns 1.00 0.00
Equals ([zD(...)qMM) [260] 0.7529 ns 0.0412 ns 0.0385 ns 1.06 0.07
EqualsOrdinal ([zD(...)qMM) [260] 1.3354 ns 0.0330 ns 0.0309 ns 1.89 0.16
OpEquality (hzZvV4?a, hzZvV4?a) 0.6958 ns 0.0398 ns 0.0372 ns 1.00 0.00
Equals (hzZvV4?a, hzZvV4?a) 0.6906 ns 0.0351 ns 0.0329 ns 1.00 0.08
EqualsOrdinal (hzZvV4?a, hzZvV4?a) 1.3454 ns 0.0448 ns 0.0398 ns 1.94 0.13
OpEquality (hzZv(...)b2x) [36] 2.7396 ns 0.0521 ns 0.0462 ns 1.00 0.00
Equals (hzZv(...)b2x) [36] 2.7529 ns 0.0227 ns 0.0177 ns 1.01 0.02
EqualsOrdinal (hzZv(...)b2x) [36] 4.8570 ns 0.0733 ns 0.0685 ns 1.77 0.04