Dale Visser <[email protected]> added the comment:
FWIW, when I tried this instead, I got 21 to 22 msec per 1000 log messages
(still a 5-10% performance hit):
def filter(self, record):
rv = True
if self.filters:
rv = all(getattr(f, 'filter', f)(record) for f in self.filters)
return rv
I don't see that getattr(...) should be less efficient than hasattr(...), so
the generator expression is the likely culprit.
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<https://bugs.python.org/issue37101>
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