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Excessive peak memory consumption by the Python parser #70603

@tyomitch

Description

@tyomitch
mannequin
BPO 26415
Nosy @freddrake, @rhettinger, @pfmoore, @vstinner, @tiran, @tjguk, @benjaminp, @encukou, @methane, @berkerpeksag, @zware, @serhiy-storchaka, @eryksun, @zooba, @tyomitch, @stratakis, @pablogsal
PRs
  • bpo-26415: reduce peak memory consumption by the parser #10995
  • Files
  • crash.zip
  • python_memleak.py
  • patch
  • patch
  • patch
  • devguide_patch
  • 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 = <Date 2020-05-23.00:28:30.620>
    created_at = <Date 2016-02-22.23:06:20.050>
    labels = ['interpreter-core', '3.8', 'performance']
    title = 'Excessive peak memory consumption by the Python parser'
    updated_at = <Date 2020-05-23.00:28:30.617>
    user = 'https://github.com/tyomitch'

    bugs.python.org fields:

    activity = <Date 2020-05-23.00:28:30.617>
    actor = 'pablogsal'
    assignee = 'serhiy.storchaka'
    closed = True
    closed_date = <Date 2020-05-23.00:28:30.620>
    closer = 'pablogsal'
    components = ['Interpreter Core']
    creation = <Date 2016-02-22.23:06:20.050>
    creator = 'A. Skrobov'
    dependencies = []
    files = ['42011', '42091', '42101', '43261', '43664', '43665', '44370']
    hgrepos = []
    issue_num = 26415
    keywords = ['patch']
    message_count = 34.0
    messages = ['260704', '260840', '260859', '260860', '260865', '260868', '260870', '260874', '260889', '260930', '261334', '261345', '261346', '261347', '261349', '261362', '261427', '261503', '265412', '267534', '267585', '267602', '267618', '267620', '267622', '270002', '272772', '272786', '274393', '299022', '330197', '331240', '331848', '369673']
    nosy_count = 18.0
    nosy_names = ['fdrake', 'rhettinger', 'paul.moore', 'vstinner', 'christian.heimes', 'tim.golden', 'benjamin.peterson', 'petr.viktorin', 'methane', 'berker.peksag', 'zach.ware', 'serhiy.storchaka', 'eryksun', 'steve.dower', 'xcombelle', 'A. Skrobov', 'cstratak', 'pablogsal']
    pr_nums = ['10995']
    priority = 'normal'
    resolution = 'rejected'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'resource usage'
    url = 'https://bugs.python.org/issue26415'
    versions = ['Python 3.8']

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    3.8 (EOL)end of lifeinterpreter-core(Objects, Python, Grammar, and Parser dirs)performancePerformance or resource usage

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