python / python/cpython

add option to make chunksize adaptive for multiprocessing.pool methods

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stdlib topic-multiprocessing type-feature
Dominant language
Python
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Forks
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PR merge metrics
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Description

BPO 39362
Nosy @pitrou, @applio, @pablogsal, @fgregg

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 = None
created_at = <Date 2020-01-16.14:56:42.964>
labels = ['type-feature', 'library']
title = 'add option to make chunksize adaptive for multiprocessing.pool methods'
updated_at = <Date 2020-01-16.18:07:25.058>
user = 'https://github.com/fgregg'

bugs.python.org fields:

activity = <Date 2020-01-16.18:07:25.058>
actor = 'pablogsal'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-01-16.14:56:42.964>
creator = 'fgregg'
dependencies = []
files = []
hgrepos = []
issue_num = 39362
keywords = []
message_count = 1.0
messages = ['360126']
nosy_count = 4.0
nosy_names = ['pitrou', 'davin', 'pablogsal', 'fgregg']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue39362'
versions = []

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the multiprocessing.pool methods and their current chunksize handling; the issue does not name a source file or test. Determine the intended adaptive behavior and option surface with maintainers, then add coverage showing that the methods use adaptive chunksizes when enabled.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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