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Semelhante a vbench: lightweight performance testing for Python
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vbench: lightweight performance testing for Python
- 1. vbench: lightweight performance testing Wes McKinney @wesmckinn PyCon 2012 Sunday, March 11,
- 2. Why do we test? Sunday, March 11,
- 3. Freedom from fear Sunday, March 11,
- 4. Testing for performance? Sunday, March 11,
- 5. Who made my code slower??? Sunday, March 11,
- 7. Who made my code slower??? Sunday, March 11,
- 9. speed.pypy.org is a one-off solution Sunday, March 11,
- 10. Stop. Help is near • GitHub: wesm/vbench • Integrates with git: runs benchmarks for each revision in your repo • Persists results locally in SQLite • Generates graphs using matplotlib Sunday, March 11,
- 11. Catch performance regressions sooner Sunday, March 11,
- 12. Writing vbenchmarks setup = common_setup + """ setup values = np.concatenate([np.arange(100000), np.random.randn(100000), np.arange(100000)]) s = Series(values) """ stats_rank_average = Benchmark('s.rank()', setup) Sunday, March 11,
- 13. Use them in your workflow In [2]: stats_rank_average.run() Out[2]: {'loops': 10, 'repeat': 3, 'succeeded': True, 'timing': 33.135390281677246, 'units': 'ms'} Same code as %timeit in IPython Sunday, March 11,
- 14. Get involved • A useful weekend hack • git bisect integration • More version control systems • Upload results to codespeed instance • More setup/teardown control Sunday, March 11,
- 15. GitHub: wesm/vbench @wesmckinn Sunday, March 11,