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Optimize asyncio.gather() #76536

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1st1 opened this issue Dec 18, 2017 · 2 comments
Closed

Optimize asyncio.gather() #76536

1st1 opened this issue Dec 18, 2017 · 2 comments
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3.7 (EOL) end of life performance Performance or resource usage topic-asyncio

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1st1 commented Dec 18, 2017

BPO 32355
Nosy @asvetlov, @1st1
PRs
  • bpo-32355: Optimize asyncio.gather() #4913
    		•
    Files
  • t.py
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/1st1'
closed_at = <Date 2017-12-19.12:20:10.931>
created_at = <Date 2017-12-18.02:41:07.785>
labels = ['expert-asyncio', '3.7', 'performance']
title = 'Optimize asyncio.gather()'
updated_at = <Date 2017-12-19.12:20:10.930>
user = 'https://github.com/1st1'

    bugs.python.org fields:

    activity = <Date 2017-12-19.12:20:10.930>
actor = 'yselivanov'
assignee = 'yselivanov'
closed = True
closed_date = <Date 2017-12-19.12:20:10.931>
closer = 'yselivanov'
components = ['asyncio']
creation = <Date 2017-12-18.02:41:07.785>
creator = 'yselivanov'
dependencies = []
files = ['47336']
hgrepos = []
issue_num = 32355
keywords = ['patch']
message_count = 2.0
messages = ['308508', '308632']
nosy_count = 2.0
nosy_names = ['asvetlov', 'yselivanov']
pr_nums = ['4913']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue32355'
versions = ['Python 3.7']
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    1st1 commented Dec 18, 2017

    asyncio.gather can be made faster if:

    1. we don't use functools.partial
    2. create less intermittent collections
    3. drop unnecessary code (e.g. gather has some code that's duplicated in ensure_future that it uses etc)

    The proposed PR makes asyncio.gather 10-15% faster on the attached benchmark.

    @1st1 1st1 added the 3.7 (EOL) end of life label Dec 18, 2017
    @1st1 1st1 self-assigned this Dec 18, 2017
    @1st1 1st1 added topic-asyncio performance Performance or resource usage labels Dec 18, 2017
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    1st1 commented Dec 19, 2017

    New changeset 36c2c04 by Yury Selivanov in branch 'master':
    bpo-32355: Optimize asyncio.gather() (bpo-4913)
    36c2c04

    @1st1 1st1 closed this as completed Dec 19, 2017
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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