I noticed that openapi generation takes about half the total build time of the quarkus application - at least for this reproducer.
Can this be improved?

Reproducer:
The model of this reproducer is genarated based on the openapi definition of one of my (public) real world applications, where I noticed this initially.

https://github.com/Postremus/smallrye-openapi-slow-repr

1. mvn clean install - just to have all dependencies ready
2. mvn quarkus:build. Remember the time noted in the log line
   [INFO] [io.quarkus.deployment.QuarkusAugmentor] Quarkus augmentation completed in 13063
3. remove quarkus-smallrye-openapi from the pom.xml
4. mvn quarkus:build. Take note of the time noted in the log
   [INFO] [io.quarkus.deployment.QuarkusAugmentor] Quarkus augmentation completed in 6714
5. Compare both times. Without openapi build will be much faster.

Flamegraphs:

wall-1-reverse.html
wall-1.html
cpu-1-reverse.html
cpu-1.html
alloc-1.html

No reverse graphs for the allocation profiling - process hit the memory limit..

I can provide jfr recordings over zulip / mail if desired (github does not like a 200mb file).