Serializaiton

Keeping System.Text.Json lean

The System.Text.Json serializer has an unexpected performance penalty when used with options

Björn Weström

10 minute read

Serialization with System.Text.Json has an unexpected performance penalty when used with options, such as setting the PropertyNamingPolicy to CamelCase. For small objects, serialization is ~200x slower! To avoid this issue, store the options object in a class member and pass that member to JsonSerializer.Serialize.