[PR #8667/406cd2c7 backport][3.10] Improve performance of generating random WebSocket mask #8668
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(cherry picked from commit 406cd2c)
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## 3.10 #8668 +/- ##
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Coverage 97.71% 97.71%
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Files 108 108
Lines 33980 33981 +1
Branches 4047 4047
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+ Hits 33204 33205 +1
Misses 579 579
Partials 197 197
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bdraco
approved these changes
Aug 9, 2024
bdraco
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This is a backport of PR #8667 as merged into master (406cd2c).
What do these changes do?
The mask was being generated with randint and than converted to bytes. We can skip a few steps and generate it with getrandbits() and pack it into bytes.
related RFC: https://datatracker.ietf.org/doc/html/rfc6455#section-5.3
Are there changes in behavior for the user?
No
Is it a substantial burden for the maintainers to support this?
no
I was looking at pings and noticed that most of the time is spent in randrange
