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Use optimized string search function in mmap.find() #91004

@rumpelsepp

Description

@rumpelsepp
BPO 46848
Nosy @vstinner, @rumpelsepp, @sweeneyde
PRs
  • bpo-46848: Optimize mmap.find() with memmem(3) #31554
  • bpo-46848: Use stringlib/fastsearch in mmap #31625
  • bpo-46848: Move _PyBytes_Find() to internal C API #31642
  • 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 2022-03-02.04:49:27.432>
    created_at = <Date 2022-02-24.12:43:50.418>
    labels = ['performance']
    title = 'Use optimized string search function in mmap.find()'
    updated_at = <Date 2022-03-02.13:15:30.865>
    user = 'https://github.com/rumpelsepp'

    bugs.python.org fields:

    activity = <Date 2022-03-02.13:15:30.865>
    actor = 'vstinner'
    assignee = 'none'
    closed = True
    closed_date = <Date 2022-03-02.04:49:27.432>
    closer = 'Dennis Sweeney'
    components = []
    creation = <Date 2022-02-24.12:43:50.418>
    creator = 'rumpelsepp'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 46848
    keywords = ['patch']
    message_count = 7.0
    messages = ['413902', '413903', '413968', '414237', '414326', '414327', '414342']
    nosy_count = 4.0
    nosy_names = ['vstinner', 'benrg', 'rumpelsepp', 'Dennis Sweeney']
    pr_nums = ['31554', '31625', '31642']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue46848'
    versions = []

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