nplusone
django-auto-prefetching
nplusone | django-auto-prefetching | |
---|---|---|
2 | 1 | |
974 | 227 | |
- | - | |
0.0 | 4.6 | |
over 1 year ago | 6 months ago | |
Python | Python | |
MIT License | MIT License |
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nplusone
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Finding n + 1 problem on a local machine
- https://github.com/jmcarp/nplusone can be enabled on dev / test and warn / fail tests
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Ban 1+N in Django
Rails has Bullet[0] to help identify and warn you against N+1
Does Django have anything active? Quick search revealed nplusone[1] but its been dead since 2018.
[0] https://github.com/flyerhzm/bullet
[1] https://github.com/jmcarp/nplusone
django-auto-prefetching
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Ban 1+N in Django
Shameless plug - I ran into this while developing REST interfaces with Django and built django-auto-prefetching: https://github.com/GeeWee/django-auto-prefetching
It essentially travels your DRF serializer tree and builds an auto-prefetched query automatically without you needing to do any work.
Back when I still worked actively on it, I wanted to monkey-patch models to track whether or not n+1 was happening, and if it was, automatically do pre-fetching, so instead of an n+1 problem you'd end up with just a "3-4 queries when it could've been 1" problem - which is much more palatable. Never got around to that part though.
What are some alternatives?
django-orm-plus
pellet - Pellet helps improve your Django app performance by discovering N+1 queries.
funcy - A fancy and practical functional tools
django-zen-queries - Explicit control over database query execution in Django applications
django-seal - Django application providing queryset sealing capability.
django-cacheops - A slick ORM cache with automatic granular event-driven invalidation.
bullet - help to kill N+1 queries and unused eager loading