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Ran Benita
ee36e101e8
Optimized lazy() by removing use of @total_ordering.
@total_ordering is slow. Using the following micro-benchmark (resultclasses intentionally omitted to narrow the scope): import cProfile from django.utils.functional import lazy def identity(x): return x cProfile.run("for i in range(10000): str(lazy(identity)(1))") Before: 380003 function calls in 0.304 seconds ncalls tottime percall cumtime percall filename:lineno(function) 1 0.016 0.016 0.304 0.304 <string>:1(<module>) 10000 0.002 0.000 0.002 0.000 bench.py:5(double) 10000 0.005 0.000 0.006 0.000 functional.py:100(__cast) 10000 0.007 0.000 0.013 0.000 functional.py:106(__str__) 10000 0.005 0.000 0.017 0.000 functional.py:140(__wrapper__) 10000 0.020 0.000 0.258 0.000 functional.py:60(lazy) 10000 0.039 0.000 0.039 0.000 functional.py:68(__proxy__) 10000 0.010 0.000 0.012 0.000 functional.py:77(__init__) 10000 0.002 0.000 0.002 0.000 functional.py:84(__prepare_class__) 10000 0.025 0.000 0.075 0.000 functools.py:186(total_ordering) 10000 0.015 0.000 0.028 0.000 functools.py:189(<setcomp>) 10000 0.024 0.000 0.044 0.000 functools.py:37(update_wrapper) 10000 0.005 0.000 0.005 0.000 functools.py:67(wraps) 10000 0.074 0.000 0.114 0.000 {built-in method builtins.__build_class__} 1 0.000 0.000 0.304 0.304 {built-in method builtins.exec} 150000 0.023 0.000 0.023 0.000 {built-in method builtins.getattr} 10000 0.004 0.000 0.004 0.000 {built-in method builtins.max} 80000 0.025 0.000 0.025 0.000 {built-in method builtins.setattr} 1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects} 10000 0.003 0.000 0.003 0.000 {method 'update' of 'dict' objects} After: 240003 function calls in 0.231 seconds ncalls tottime percall cumtime percall filename:lineno(function) 1 0.016 0.016 0.231 0.231 <string>:1(<module>) 10000 0.002 0.000 0.002 0.000 bench.py:5(double) 10000 0.006 0.000 0.012 0.000 functional.py:105(__str__) 10000 0.005 0.000 0.017 0.000 functional.py:159(__wrapper__) 10000 0.015 0.000 0.186 0.000 functional.py:60(lazy) 10000 0.022 0.000 0.022 0.000 functional.py:68(__proxy__) 10000 0.010 0.000 0.012 0.000 functional.py:76(__init__) 10000 0.002 0.000 0.002 0.000 functional.py:83(__prepare_class__) 10000 0.004 0.000 0.006 0.000 functional.py:99(__cast) 10000 0.023 0.000 0.043 0.000 functools.py:37(update_wrapper) 10000 0.004 0.000 0.004 0.000 functools.py:67(wraps) 10000 0.102 0.000 0.124 0.000 {built-in method builtins.__build_class__} 1 0.000 0.000 0.231 0.231 {built-in method builtins.exec} 70000 0.011 0.000 0.011 0.000 {built-in method builtins.getattr} 50000 0.007 0.000 0.007 0.000 {built-in method builtins.setattr} 1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects} 10000 0.003 0.000 0.003 0.000 {method 'update' of 'dict' objects}
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====== Django ====== Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. Thanks for checking it out. All documentation is in the "``docs``" directory and online at https://docs.djangoproject.com/en/stable/. If you're just getting started, here's how we recommend you read the docs: * First, read ``docs/intro/install.txt`` for instructions on installing Django. * Next, work through the tutorials in order (``docs/intro/tutorial01.txt``, ``docs/intro/tutorial02.txt``, etc.). * If you want to set up an actual deployment server, read ``docs/howto/deployment/index.txt`` for instructions. * You'll probably want to read through the topical guides (in ``docs/topics``) next; from there you can jump to the HOWTOs (in ``docs/howto``) for specific problems, and check out the reference (``docs/ref``) for gory details. * See ``docs/README`` for instructions on building an HTML version of the docs. Docs are updated rigorously. If you find any problems in the docs, or think they should be clarified in any way, please take 30 seconds to fill out a ticket here: https://code.djangoproject.com/newticket To get more help: * Join the ``#django`` channel on ``irc.libera.chat``. Lots of helpful people hang out there. See https://web.libera.chat if you're new to IRC. * Join the django-users mailing list, or read the archives, at https://groups.google.com/group/django-users. To contribute to Django: * Check out https://docs.djangoproject.com/en/dev/internals/contributing/ for information about getting involved. To run Django's test suite: * Follow the instructions in the "Unit tests" section of ``docs/internals/contributing/writing-code/unit-tests.txt``, published online at https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/unit-tests/#running-the-unit-tests Supporting the Development of Django ==================================== Django's development depends on your contributions. If you depend on Django, remember to support the Django Software Foundation: https://www.djangoproject.com/fundraising/