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Commit Graph

16 Commits

Author SHA1 Message Date
Nick Pope
b47f2f5b90 Fixed #33865 -- Optimized LimitedStream wrapper.
The current implementation of LimitedStream is slow because .read()
performs an extra copy into a buffer and .readline() performs two
extra copies. The stream being wrapped is already typically a BytesIO
object so this is unnecessary.

This implementation has largely been untouched for 12 years and,
inspired by a simpler implementation in werkzeug, it was possible to
achieve the following performance improvement:

LimitedStream.read() (single line):
  Mean +- std dev: [bench_limitedstream-main] 286 ns +- 6 ns
  -> [bench_limitedstream-patch] 227 ns +- 6 ns: 1.26x faster
LimitedStream.readline() (single line):
  Mean +- std dev: [bench_limitedstream-main] 507 ns +- 11 ns
  -> [bench_limitedstream-patch] 232 ns +- 8 ns: 2.18x faster
LimitedStream.read(8192) (single line):
  Mean +- std dev: [bench_limitedstream-main] 360 ns +- 8 ns
  -> [bench_limitedstream-patch] 297 ns +- 6 ns: 1.21x faster
LimitedStream.readline(8192) (single line):
  Mean +- std dev: [bench_limitedstream-main] 602 ns +- 10 ns
  -> [bench_limitedstream-patch] 305 ns +- 10 ns: 1.98x faster
LimitedStream.read() (multiple lines):
  Mean +- std dev: [bench_limitedstream-main] 290 ns +- 5 ns
  -> [bench_limitedstream-patch] 236 ns +- 6 ns: 1.23x faster
LimitedStream.readline() (multiple lines):
  Mean +- std dev: [bench_limitedstream-main] 517 ns +- 19 ns
  -> [bench_limitedstream-patch] 239 ns +- 7 ns: 2.16x faster
LimitedStream.read(8192) (multiple lines):
  Mean +- std dev: [bench_limitedstream-main] 363 ns +- 8 ns
  -> [bench_limitedstream-patch] 311 ns +- 11 ns: 1.17x faster
LimitedStream.readline(8192) (multiple lines):
  Mean +- std dev: [bench_limitedstream-main] 601 ns +- 12 ns
  -> [bench_limitedstream-patch] 308 ns +- 7 ns: 1.95x faster

Geometric mean: 1.59x faster
2023-01-05 19:26:56 +01:00
django-bot
9c19aff7c7 Refs #33476 -- Reformatted code with Black. 2022-02-07 20:37:05 +01:00
Tom Forbes
141ab6bc6d Refs #29069 -- Added test for calling request_finished signal by static file responses.
Fixed in 41a3b3d186.
2020-04-20 06:17:57 +02:00
Florian Apolloner
41a3b3d186 Fixed #31240 -- Properly closed FileResponse when wsgi.file_wrapper is used.
Thanks to Oskar Persson for the report.
2020-02-11 20:39:12 +01:00
Min ho Kim
7bd9633320 Fixed typos in test names and a comment. 2019-08-23 10:46:43 +02:00
chillaranand
d6eaf7c018 Refs #23919 -- Replaced super(ClassName, self) with super(). 2017-01-25 12:23:46 -05:00
Claude Paroz
042b7350a0 Refs #23919 -- Removed unneeded str() calls 2017-01-20 14:13:55 +01:00
Simon Charette
cecc079168 Refs #23919 -- Stopped inheriting from object to define new style classes. 2017-01-19 08:39:46 +01:00
Claude Paroz
d7b9aaa366 Refs #23919 -- Removed encoding preambles and future imports 2017-01-18 09:55:19 +01:00
Tim Graham
7b05ffd95d Removed a bit of builtin_server tests for Python ≤ 2.7.3. 2016-11-10 22:20:09 -05:00
za
321e94fa41 Refs #27392 -- Removed "Tests that", "Ensures that", etc. from test docstrings. 2016-11-10 21:30:21 -05:00
Tim Graham
0ed7d15563 Sorted imports with isort; refs #23860. 2015-02-06 08:16:28 -05:00
Ramiro Morales
9a982d5ccc Moved ServerHandler helper class to tests.
It has been only used in the builtin_servers tests since Django 1.4.
2014-03-30 20:55:40 -03:00
Aymeric Augustin
cfcf4b3605 Stopped using django.utils.unittest in the test suite.
Refs #20680.
2013-07-01 14:29:33 +02:00
Matthew Wood
a7960bcb35 Fixed #18972 -- Refactored bundled wsgi server's chunking algorithm.
Thanks to amosonn at yahoo.com for the report, @doda for the initial patch and
@datagrok for the revamped logic and test case.
2013-03-20 18:46:26 -04:00
Florian Apolloner
89f40e3624 Merged regressiontests and modeltests into the test root. 2013-02-26 14:36:57 +01:00