apache/beam
python typehints: reduce the number of runtime-type-check wrappers
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#20,226 创建于 2022年6月4日
P3bugcoregood first issuepythontypes
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描述
The --runtime_type_check flag is considered to be a performance penalty. One of the possible slowdowns is the wrapper around DoFn.process(), which adds an extra call to the wrapped process() method. Currently, there are 2 wrappers applied: OutputCheckWrapperDoFn and TypeCheckWrapperDoFn. These could be merged into one to possibly save on overhead.
Imported from Jira BEAM-9489. Original Jira may contain additional context. Reported by: udim.