Improve speed of dag.partial_subset by not deep-copying TaskGroup
#23088
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This resulted in the _entire_ dag being copied over and over many times. For a task with 500 dags this takes the time of this function down from 60s(!) to just over 1s.
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This was a regression caused by adding the |
jedcunningham
approved these changes
Apr 19, 2022
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full tests needed
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The PR most likely needs to run full matrix of tests because it modifies parts of the core of Airflow. However, committers might decide to merge it quickly and take the risk. If they don't merge it quickly - please rebase it to the latest main at your convenience, or amend the last commit of the PR, and push it with --force-with-lease. |
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This resulted in the entire dag being copied over and over many times. For a task with 500 dags this takes the time of this function down from 60s(!) to just over 1s.
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