python / python/cpython

[easy C] long type performance waste in 64-bit Windows build

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3.12 OS-windows performance
Dominant language
Python
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Description

BPO 42304
Nosy @pfmoore, @vstinner, @tjguk, @zware, @serhiy-storchaka, @zooba, @animalize

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 2020-11-10.07:33:14.971>
labels = ['3.10', 'OS-windows', 'performance']
title = '[easy C] long type performance waste in 64-bit Windows build'
updated_at = <Date 2020-11-10.10:33:09.880>
user = 'https://github.com/animalize'

bugs.python.org fields:

activity = <Date 2020-11-10.10:33:09.880>
actor = 'malin'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Windows']
creation = <Date 2020-11-10.07:33:14.971>
creator = 'malin'
dependencies = []
files = []
hgrepos = []
issue_num = 42304
keywords = []
message_count = 6.0
messages = ['380638', '380642', '380644', '380646', '380647', '380649']
nosy_count = 7.0
nosy_names = ['paul.moore', 'vstinner', 'tim.golden', 'zach.ware', 'serhiy.storchaka', 'steve.dower', 'malin']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue42304'
versions = ['Python 3.10']

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

No source file or test is named. Start by examining the 64-bit Windows build code that handles the long type and identify where the reported performance waste occurs; done means the unnecessary cost is removed and the relevant Windows build or test checks pass.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
build-system, operating-systems, performance
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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