Performance

Performance

• Applies to: Flask and FastAPI
• Best sources: safrs/config.py, safrs/request.py
• Related pages: Sorting, Pagination, and Sparse Fieldsets, Relationships and Includes

Practical cost centers

The most common SAFRS performance costs come from:

• large collections
• deep include=... trees
• high default page sizes
• expensive count operations

Tuning checklist

• keep pagination limits sane
• avoid very broad includes on large collections
• hide or disable relationships you do not need
• use sparse fieldsets to reduce payload size
• review DEFAULT_PAGE_LIMIT, MAX_PAGE_LIMIT, and ENABLE_RELATIONSHIPS

SQLite and demo note

If you are testing with SQLite demo setups, remember that concurrency and write-heavy behavior can look different from production databases.