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sched.py: speedup cancel() method #57660

@giampaolo

Description

@giampaolo
BPO 13451
Nosy @rhettinger, @pitrou, @giampaolo, @serhiy-storchaka
PRs
  • bpo-13451: Optimize sched.scheduler.cancel() #22759
  • Files
  • sched-cancel-speedup.patch
  • cancel-later-approach.patch
  • cancel.patch
  • bench.py
  • cancel_2.patch
  • cancel3.patch
  • cancel_4.patch
  • cancel_4b.patch
  • 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/serhiy-storchaka'
    closed_at = None
    created_at = <Date 2011-11-22.01:03:42.140>
    labels = ['library', '3.9', 'performance']
    title = 'sched.py: speedup cancel() method'
    updated_at = <Date 2020-10-27.04:05:56.626>
    user = 'https://github.com/giampaolo'

    bugs.python.org fields:

    activity = <Date 2020-10-27.04:05:56.626>
    actor = 'vstinner'
    assignee = 'serhiy.storchaka'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)']
    creation = <Date 2011-11-22.01:03:42.140>
    creator = 'giampaolo.rodola'
    dependencies = []
    files = ['23750', '23753', '23785', '23786', '27489', '32136', '32138', '32281']
    hgrepos = []
    issue_num = 13451
    keywords = ['patch']
    message_count = 20.0
    messages = ['148103', '148105', '148108', '148403', '149292', '172377', '199978', '199988', '200012', '200015', '200016', '200017', '200023', '200043', '200792', '200802', '219316', '228045', '267780', '350176']
    nosy_count = 5.0
    nosy_names = ['rhettinger', 'pitrou', 'giampaolo.rodola', 'stutzbach', 'serhiy.storchaka']
    pr_nums = ['22759']
    priority = 'low'
    resolution = None
    stage = 'patch review'
    status = 'open'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue13451'
    versions = ['Python 3.9']

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    3.9 (EOL)end of lifependingThe issue will be closed if no feedback is providedperformancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directory

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