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Add _BlocksOutputBuffer for bz2/lzma/zlib module #85658

@animalize

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@animalize
mannequin
BPO 41486
Nosy @gpshead, @methane, @animalize, @miss-islington
PRs
  • bpo-41486: Add _BlocksOutputBuffer for bz2/lzma/zlib modules #21740
  • bpo-41486: Fix initial buffer size can't > UINT32_MAX in zlib module #25738
  • bpo-41486: zlib uses an UINT32_MAX sliding window for the output buffer #26143
  • [3.10] bpo-41486: zlib uses an UINT32_MAX sliding window for the output buffer (GH-26143) #27025
  • Files
  • 0to2GB_step30MB.png: Decompress from 0 to 2GB, 30MB step
  • 0to200MB_step2MB.png: Decompress from 0 to 200MB, 2MB step
  • 0to20MB_step64KB.png: Decompress from 0 to 20MB, 64KB step
  • benchmark.py: benchmark special data (all data consists of b'a')
  • benchmark_real.py: benchmark real data
  • different_factors.png
  • 45d7526.diff
  • 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 2021-04-28.07:03:16.906>
    created_at = <Date 2020-08-05.09:55:44.264>
    labels = ['library', '3.10', 'performance']
    title = 'Add _BlocksOutputBuffer for bz2/lzma/zlib module'
    updated_at = <Date 2021-07-05.01:33:03.794>
    user = 'https://github.com/animalize'

    bugs.python.org fields:

    activity = <Date 2021-07-05.01:33:03.794>
    actor = 'miss-islington'
    assignee = 'none'
    closed = True
    closed_date = <Date 2021-04-28.07:03:16.906>
    closer = 'gregory.p.smith'
    components = ['Library (Lib)']
    creation = <Date 2020-08-05.09:55:44.264>
    creator = 'malin'
    dependencies = []
    files = ['49364', '49365', '49366', '49367', '49368', '49544', '49993']
    hgrepos = []
    issue_num = 41486
    keywords = ['patch']
    message_count = 20.0
    messages = ['374867', '379682', '379683', '379817', '390269', '390793', '390794', '390812', '391840', '391904', '392052', '392166', '392167', '392168', '392372', '392384', '392544', '393715', '396964', '396965']
    nosy_count = 4.0
    nosy_names = ['gregory.p.smith', 'methane', 'malin', 'miss-islington']
    pr_nums = ['21740', '25738', '26143', '27025']
    priority = 'normal'
    resolution = 'fixed'
    stage = 'resolved'
    status = 'closed'
    superseder = None
    type = 'performance'
    url = 'https://bugs.python.org/issue41486'
    versions = ['Python 3.10']

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      3.10only security fixesperformancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directory

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