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Tutorials Flask Web Framework Flask Performance

Flask Performance

4 min read
Speed up Flask: Gunicorn workers, Redis caching, joinedload, Celery, CDN for static files.

Flask Performance Tips

  • Use gunicorn -w 4 — multiple worker processes
  • Cache expensive views with @cache.cached(timeout=300)
  • Use joinedload/subqueryload to prevent N+1 queries
  • Defer slow tasks to Celery workers
  • Use Redis for sessions instead of filesystem
  • Use CDN for static files
  • Profile with Flask-DebugToolbar or py-spy