yury-fedorov / StringInterpolationPerformance

StringInterpolationPerformance

String Interpolation vs String Format, String Concat and String Builder performance benchmarks

How to run the test

dotnet run -c Release

Summary

.NET 5

BenchmarkDotNet=v0.12.1, OS=macOS 11.0.1 (20B29) [Darwin 20.1.0]
Intel Core i7-6567U CPU 3.30GHz (Skylake), 1 CPU, 4 logical and 2 physical cores
.NET Core SDK=5.0.100
  [Host]     : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT
  DefaultJob : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT

Method	Mean	Error	StdDev
StringFormat	178.8 ns	2.57 ns	2.41 ns
StringInterpolation	101.4 ns	1.43 ns	1.20 ns
StringConcat	101.2 ns	1.04 ns	0.92 ns
StringBuilder	250.4 ns	4.00 ns	3.54 ns

.NET Core 3.1

BenchmarkDotNet=v0.12.1, OS=macOS 11.0.1 (20B29) [Darwin 20.1.0]
Intel Core i7-6567U CPU 3.30GHz (Skylake), 1 CPU, 4 logical and 2 physical cores
.NET Core SDK=5.0.100
  [Host]     : .NET Core 3.1.9 (CoreCLR 4.700.20.47201, CoreFX 4.700.20.47203), X64 RyuJIT
  DefaultJob : .NET Core 3.1.9 (CoreCLR 4.700.20.47201, CoreFX 4.700.20.47203), X64 RyuJIT

Method	Mean	Error	StdDev
StringFormat	232.4 ns	4.69 ns	5.21 ns
StringInterpolation	112.5 ns	2.26 ns	2.41 ns
StringConcat	110.8 ns	1.25 ns	1.11 ns
StringBuilder	249.5 ns	4.25 ns	3.77 ns