python / python/cpython

create multiprocessing.SharedMemory by pointing to existing memoryview

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3.13 performance stdlib topic-multiprocessing type-feature
Dominant language
Python
Stars
77.2k
Forks
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PR merge metrics
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Description

BPO 39767

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 2020-02-26.23:46:31.295>
labels = ['3.8', 'library', 'performance']
title = 'create multiprocessing.SharedMemory by pointing to existing memoryview'
updated_at = <Date 2021-06-22.14:43:45.738>
user = 'https://bugs.python.org/DariuszTrawinski'

bugs.python.org fields:

activity = <Date 2021-06-22.14:43:45.738>
actor = 'petr.viktorin'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-02-26.23:46:31.295>
creator = 'Dariusz Trawinski'
dependencies = []
files = []
hgrepos = []
issue_num = 39767
keywords = []
message_count = 1.0
messages = ['362754']
nosy_count = 1.0
nosy_names = ['Dariusz Trawinski']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue39767'
versions = ['Python 3.8']

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

The issue names multiprocessing.SharedMemory as the entry point; start there and inspect how its constructor currently obtains memory. Done means it can be created by pointing at an existing memoryview, with the behavior verified by the relevant library tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems, performance
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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