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February 5, 2020 13:24
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Benchmark Django REST-Framework
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| import cProfile | |
| import pstats | |
| import time | |
| from collections import OrderedDict, namedtuple | |
| import django | |
| import rest_framework | |
| from django.conf import settings | |
| from django.test import RequestFactory | |
| from rest_framework.response import Response | |
| settings.configure( | |
| DEBUG=True, | |
| INSTALLED_APPS=( | |
| "django.contrib.contenttypes", | |
| "django.contrib.auth", | |
| "rest_framework", | |
| ) | |
| ) | |
| django.setup() | |
| from rest_framework import generics, serializers # noqa isort:skip | |
| Entry = namedtuple('Entry', 'id name') | |
| entries = [Entry(id=f'id{i}', name=f'Entry Name {i}') for i in range(1000)] | |
| class EntrySerializer(serializers.Serializer): | |
| id = serializers.CharField(max_length=200) | |
| name = serializers.CharField(max_length=200) | |
| class EntryViewSet(generics.ListCreateAPIView): | |
| def list(self, request, *args, **kwargs): | |
| serializer = EntrySerializer(entries, many=True) | |
| return Response(serializer.data) | |
| def benchmark(): | |
| print('Benchmark') | |
| print(f'django v{django.__version__}') | |
| print(f'REST framework v{rest_framework.__version__}') | |
| view = EntryViewSet.as_view() | |
| rf = RequestFactory() | |
| request = rf.get('/') | |
| start_time = time.monotonic() | |
| response = view(request=request) | |
| duration = time.monotonic() - start_time | |
| print(f'takes: {duration*1000:.1f} ms') | |
| # verify request/response: | |
| assert response.status_code == 200 | |
| entries = response.data | |
| assert len(entries) == 1000, len(entries) | |
| assert entries[0] == OrderedDict( | |
| [('id', 'id0'), ('name', 'Entry Name 0')]), entries[0] | |
| assert entries[999] == OrderedDict( | |
| [('id', 'id999'), ('name', 'Entry Name 999')]), entries[999] | |
| print() | |
| print('_' * 100) | |
| print('run cProfile...\n') | |
| pr = cProfile.Profile() | |
| pr.enable() | |
| view(request=request) | |
| pr.disable() | |
| pstats.Stats(pr).sort_stats('tottime', 'cumulative', 'calls').print_stats(20) | |
| if __name__ == '__main__': | |
| benchmark() |
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| Benchmark | |
| django v2.2.10 | |
| REST framework v3.11.0 | |
| takes: 8.2 ms | |
| ____________________________________________________________________________________________________ | |
| run cProfile... | |
| 47664 function calls (47653 primitive calls) in 0.014 seconds | |
| Ordered by: internal time, cumulative time, call count | |
| List reduced from 189 to 20 due to restriction <20> | |
| ncalls tottime percall cumtime percall filename:lineno(function) | |
| 1000 0.002 0.000 0.013 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/serializers.py:507(to_representation) | |
| 12036 0.002 0.000 0.003 0.000 {built-in method builtins.isinstance} | |
| 2000 0.001 0.000 0.003 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/fields.py:59(is_simple_callable) | |
| 2000 0.001 0.000 0.002 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/abc.py:180(__instancecheck__) | |
| 2000 0.001 0.000 0.007 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/fields.py:82(get_attribute) | |
| 3000 0.001 0.000 0.003 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/serializers.py:373(_readable_fields) | |
| 3000 0.001 0.000 0.002 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/_collections_abc.py:760(__iter__) | |
| 4000 0.001 0.000 0.001 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/_weakrefset.py:70(__contains__) | |
| 2000 0.000 0.000 0.007 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/fields.py:448(get_attribute) | |
| 2000 0.000 0.000 0.001 0.000 /usr/lib/python3.6/inspect.py:277(isbuiltin) | |
| 2000 0.000 0.000 0.001 0.000 /usr/lib/python3.6/inspect.py:159(isfunction) | |
| 2000 0.000 0.000 0.000 0.000 /usr/lib/python3.6/inspect.py:81(ismethod) | |
| 2000 0.000 0.000 0.000 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/fields.py:841(to_representation) | |
| 1000 0.000 0.000 0.000 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/_collections_abc.py:680(values) | |
| 1 0.000 0.000 0.013 0.013 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/serializers.py:678(<listcomp>) | |
| 2043/2042 0.000 0.000 0.000 0.000 {built-in method builtins.getattr} | |
| 1000 0.000 0.000 0.000 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/utils/serializer_helpers.py:153(__iter__) | |
| 2000 0.000 0.000 0.000 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/site-packages/rest_framework/utils/serializer_helpers.py:147(__getitem__) | |
| 1001 0.000 0.000 0.000 0.000 {built-in method builtins.iter} | |
| 1000 0.000 0.000 0.000 0.000 /home/jens/.local/share/virtualenvs/foo-bar/lib/python3.6/_collections_abc.py:698(__init__) | |
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