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gh-104144: Skip scheduling a done callback if a TaskGroup task completes eagerly #104140

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Merged
gvanrossum merged 6 commits into from
May 5, 2023
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gh-104144: Skip scheduling a done callback if a TaskGroup task completes eagerly #104140

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gh-NNNN: Skip scheduling a done callback if a TaskGroup task complete…
itamaro May 3, 2023
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Add NEWS entry
itamaro May 3, 2023
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Apply review feedback to NEWS entry
itamaro May 4, 2023
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Merge branch 'main' into taskgroups-skip-done-callback
itamaro May 5, 2023
161d0f8
revert skipping _set_task_name if name is None; fix typo in comment
itamaro May 5, 2023
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Merge branch 'main' into taskgroups-skip-done-callback
itamaro May 5, 2023
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Apply review feedback to NEWS entry 
Co-authored-by: Carl Meyer <carl@oddbird.net>
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@itamaro @carljm
itamaro and carljm authored May 4, 2023
commit a125c1fc495782429baca2f892b7a798ec9bdf4c
3 changes: 1 addition & 2 deletions Misc/NEWS.d/next/Library/2023-05-03-16-51-53.gh-issue-104144.653Q0P.rst
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Optimize asyncio.TaskGroup when using eager tasks factory -- Skip scheduling
done callbacks when all tasks finish without blocking - for up to 4x speedup
Optimize :class:`asyncio.TaskGroup` when using :func:`asyncio.eager_task_factory`. Skip scheduling done callbacks when all tasks finish without blocking.
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@kumaraditya303 kumaraditya303 May 6, 2023

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Hmm actually the scheduling is skipped on a per task basis rather than when all tasks finish without blocking.

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@itamaro itamaro May 7, 2023

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I have a fix in itamaro@ac1ee82 (PR depends on gh-104251 first)