ventsislav-georgiev / go-test

Benchmarks

Contents:

• C# (.NET v6) vs Go - Exceptions
• C# (.NET v6) vs Go - JSON
• Go - Method Invocation

Exceptions:

• C# code:

• C# results:

• Go code:

• Go results:

Summary:

• C# 10ns vs 11us - Try not to use exceptions in the hot paths of your code.
• Go 4ns vs 150ns - Panic in Go is generally for non user defined errors. All others are simply values passed via the error interface.

JSON:

• C# code:

• C# results:

• Go code:

• Go results:

Summary:

The new JSON serializer in .NET 6 with code generation is about the same speed as the default in Go. Easyjson also uses the code generation aproach and is 4 times faster.

Method Invocation:

• Go code:

• Go results:

Summary:

The method invocation on type vs interface vs empty interface with type switch or type assertion have little to no difference in performance. The fastest seems to be to pass a struct as interface. Maybe the method table is smaller in this case 🤷‍♂️.