Individual skill
django-test-profiling
Profile and measure slow Django test suites with Django's runner, pytest-django, shell timing, py-spy, cProfile, pytest durations, and profiler visualizations. Use when a Django project has slow tests, unclear test-runtime bottlenecks, CI timing problems, startup overhead, database setup overhead, or a request to find the slowest tests before optimizing.
plugins/LVTD-LLC/skills/skills/django-test-profiling/SKILL.md
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- Last checked
- Nov 4, 2026
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- Nov 6, 2026
- License
- Apache-2.0
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# Django Test Profiling
Use this skill before changing a Django test suite for speed. Measurement decides which optimization is worth doing; otherwise it is easy to spend time on harmless settings while the real cost sits in startup, database setup, fixture construction, or a small set of slow tests.
## Measurement Workflow
1. Capture a full wall-clock baseline.
- Prefer shell timing because it includes Python startup, Django import time, test discovery, database setup, and teardown.
- Record the exact command, environment, and repeat count.
2. Separate framework phases when possible.
- For Django's runner, use `--timing` to see database setup and teardown.
- For pytest, compare shell timing with `pytest --durations`.
