Dale Visser <dale.vis...@live.com> added the comment:
It is with great surprise and sadness that I report that I found that
performance measurements don't support merging this change. I'm attaching my
performance test script. I ran it with/without the logging filters for 1000000
iterations, e.g., ./python all 1000000
The results on my system were as follows, where the numbers may be interpreted
as milliseconds per 1000 log messages:
No Filters 3 Filters
master 17.9 19.8
CBO-37101 19.6 23.1
I imagine I could put a guard 'if' statement that would restore the 'no
filters' performance to match 'master', but my use of generators apparently
causes the use of significantly more cycles than the existing code.
----------
resolution: -> rejected
stage: patch review -> resolved
status: open -> closed
Added file: https://bugs.python.org/file48381/test_filter_perf.py
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<https://bugs.python.org/issue37101>
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