python / python/cpython

Monotonic time on macOS 10.12+ should use mach_continuous_time()

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3.10 OS-mac type-bug
Dominant language
Python
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Description

BPO 42107
Nosy @ronaldoussoren, @vstinner, @ned-deily, @xsetech

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 2020-10-21.10:37:25.123>
labels = ['OS-mac', 'type-bug', '3.10']
title = 'Monotonic time on macOS 10.12+ should use mach_continuous_time()'
updated_at = <Date 2020-10-21.18:55:54.519>
user = 'https://github.com/xsetech'

bugs.python.org fields:

activity = <Date 2020-10-21.18:55:54.519>
actor = 'ronaldoussoren'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['macOS']
creation = <Date 2020-10-21.10:37:25.123>
creator = 'sjunot'
dependencies = []
files = []
hgrepos = []
issue_num = 42107
keywords = []
message_count = 2.0
messages = ['379204', '379231']
nosy_count = 4.0
nosy_names = ['ronaldoussoren', 'vstinner', 'ned.deily', 'sjunot']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue42107'
versions = ['Python 3.10']

Linked PRs
  • gh-134521

Contributor guide

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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 reviewing linked PR gh-134521 and the macOS timing implementation it addresses. Check how monotonic time is handled on macOS 10.12 and later, then verify that the implementation uses mach_continuous_time() and that the relevant tests pass.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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