Certain methods that heap allocated subtypes inherit suffer a 50-80% performance penalty
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3.12
performance
topic-C-API
- Dominant language
- Python
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Description
| BPO | 34396 |
|---|---|
| Nosy | @rhettinger, @scoder, @benjaminp, @methane, @serhiy-storchaka, @jdemeyer, @mr-nfamous, @Marco-Sulla |
| PRs |
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 2018-08-13.19:36:41.892>
labels = ['expert-C-API', '3.9', 'performance']
title = 'Certain methods that heap allocated subtypes inherit suffer a 50-80% performance penalty'
updated_at = <Date 2020-02-28.08:02:38.315>
user = 'https://github.com/mr-nfamous'
bugs.python.org fields:
activity = <Date 2020-02-28.08:02:38.315>
actor = 'methane'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['C API']
creation = <Date 2018-08-13.19:36:41.892>
creator = 'bup'
dependencies = []
files = []
hgrepos = []
issue_num = 34396
keywords = ['patch']
message_count = 8.0
messages = ['323490', '323498', '328187', '339449', '339453', '339477', '348185', '362715']
nosy_count = 8.0
nosy_names = ['rhettinger', 'scoder', 'benjamin.peterson', 'methane', 'serhiy.storchaka', 'jdemeyer', 'bup', 'Marco Sulla']
pr_nums = ['14863']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue34396'
versions = ['Python 3.9']
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with BPO issue 34396 and the referenced PR #14863; the payload names no source files or tests. Determine which inherited methods on heap-allocated subtypes are affected and validate the reported performance penalty with benchmarks; done means the regression is addressed and the performance difference is verified.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, python
- Domain
- backend, performance
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100