Severe performance degradation after Spring GraphQL 1.4.1 update

[anton-bogomazov]

Hello,

After upgrading from Spring Boot 3.4.3 to 3.5.4 and Spring GraphQL from 1.3.4 to 1.4.1, we encountered a significant increase in response time for one of our GraphQL methods. Notably, the input to this method is a complex self-referencing structure.

During profiling, I observed that around 16 seconds (previously it was just a few hundred milliseconds) are spent in
org.springframework.graphql.data.GraphQlArgumentBinder

I’ve created a minimal reproducible example that demonstrates the issue:
https://github.com/anton-bogomazov/graphql-arg-binding-bug

Let me know if you need more information. I’d be happy to help!

[anton-bogomazov]

I investigated some more and found that the performance issue was introduced in 1.4.0, 1.3.6 is fine

[bclozel]

Probably linked to #1163

We will have a look. Thanks for the sample.