Speeding up schema generation

[bluesurfer]

I have a project with a large number of API endpoints (40 viewsets - approximately 120 endpoints). I am using spectacular for the docs, I fixed all the warnings but still the schema generation takes quite a lot. By running:

python -m cProfile ./manage.py spectacular --format openapi-json --file schema.json

I get this:

14257450 function calls (13330353 primitive calls) in 12.067

The use of extend_schema and extend_schema_view is just for specifying tags and operation_id. Everything else is autogenerated.

So, I understand that spectacular needs to inspect all the code but are there any best practices which I am missing and that may help reduce the generation time?

Is this ticket going to have any impact #1371?

[nijel]

#1371 reduces time on Weblate OpenAPI by about 30%. You can try applying the patch locally and see how big an impact it has in your case. I guess it will vary a lot, that's why I didn't mention any numbers in the pull request.