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bytearray front-slicing not optimized #63287

@pitrou

Description

@pitrou
BPO 19087
Nosy @pitrou, @vstinner, @vadmium, @serhiy-storchaka
Files
  • bytea_slice.patch
  • bench_bytearray.py
  • bytea_slice2.patch
  • bench_bytearray2.py
  • bytea_slice3.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 = None
    closed_at = <Date 2013-10-05.20:54:09.063>
    created_at = <Date 2013-09-25.14:03:50.061>
    labels = ['interpreter-core', 'performance']
    title = 'bytearray front-slicing not optimized'
    updated_at = <Date 2015-04-18.06:14:10.875>
    user = 'https://github.com/pitrou'

    bugs.python.org fields:

    activity = <Date 2015-04-18.06:14:10.875>
    actor = 'martin.panter'
    assignee = 'none'
    closed = True
    closed_date = <Date 2013-10-05.20:54:09.063>
    closer = 'pitrou'
    components = ['Interpreter Core']
    creation = <Date 2013-09-25.14:03:50.061>
    creator = 'pitrou'
    dependencies = []
    files = ['31873', '31916', '31926', '31929', '31954']
    hgrepos = []
    issue_num = 19087
    keywords = ['patch']
    message_count = 44.0
    messages = ['198385', '198390', '198391', '198415', '198423', '198424', '198429', '198430', '198440', '198442', '198652', '198654', '198655', '198656', '198657', '198658', '198659', '198660', '198661', '198662', '198663', '198664', '198665', '198669', '198670', '198671', '198718', '198722', '198724', '198728', '198730', '198731', '198736', '198743', '198744', '198911', '198915', '198935', '198937', '198998', '199000', '199001', '199002', '241401']
    nosy_count = 5.0
    nosy_names = ['pitrou', 'vstinner', 'python-dev', 'martin.panter', 'serhiy.storchaka']
    pr_nums = []
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue19087'
    versions = ['Python 3.4']

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      interpreter-core(Objects, Python, Grammar, and Parser dirs)performancePerformance or resource usage

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