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map() instantiation time reducing by using PEP 590 vectorcall #87741

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corona10 opened this issue Mar 21, 2021 · 2 comments
Closed

map() instantiation time reducing by using PEP 590 vectorcall #87741

corona10 opened this issue Mar 21, 2021 · 2 comments
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3.10 only security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage

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BPO 43575
Nosy @rhettinger, @vstinner, @corona10
PRs
  • bpo-43575: Use PEP 590 vectorcall to speed up map() #24955
    		•
    Files
  • map_bench.py
    		•

    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 = 'https://github.com/corona10'
closed_at = <Date 2021-03-22.10:01:34.685>
created_at = <Date 2021-03-21.03:25:03.475>
labels = ['interpreter-core', '3.10', 'performance']
title = 'map() instantiation time reducing by using PEP 590 vectorcall'
updated_at = <Date 2021-03-22.10:01:34.684>
user = 'https://github.com/corona10'

    bugs.python.org fields:

    activity = <Date 2021-03-22.10:01:34.684>
actor = 'corona10'
assignee = 'corona10'
closed = True
closed_date = <Date 2021-03-22.10:01:34.685>
closer = 'corona10'
components = ['Interpreter Core']
creation = <Date 2021-03-21.03:25:03.475>
creator = 'corona10'
dependencies = []
files = ['49896']
hgrepos = []
issue_num = 43575
keywords = ['patch']
message_count = 2.0
messages = ['389210', '389293']
nosy_count = 3.0
nosy_names = ['rhettinger', 'vstinner', 'corona10']
pr_nums = ['24955']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue43575'
versions = ['Python 3.10']
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    +-----------+------------------+----------------------+
    | Benchmark | map_bench_master | map_bench_vectorcall |
    +===========+==================+======================+
    | bench map | 151 ns | 116 ns: 1.30x faster |
    +-----------+------------------+----------------------+

    We already apply this feature for filter().
    No reason not to apply map().

    @corona10 corona10 added the 3.10 only security fixes label Mar 21, 2021
    @corona10 corona10 self-assigned this Mar 21, 2021
    @corona10 corona10 added interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage 3.10 only security fixes labels Mar 21, 2021
    @corona10 corona10 self-assigned this Mar 21, 2021
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    New changeset 86883d4 by Dong-hee Na in branch 'master':
    bpo-43575: Use PEP-590 vectorcall to speed up map() (GH-24955)
    86883d4

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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