Use PEP 590 vectorcall to speed up calls to bool()

[corona10]

BPO	41870
Nosy	@vstinner, @markshannon, @corona10, @pablogsal
PRs	bpo-41870: Use PEP 590 vectorcall to speed up bool()  #22427 bpo-41870: Avoid the test when nargs=0 #22462 bpo-41870: Update What's News 3.10 about vectorcall #25219
Files	bench_bool.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 2020-10-01.04:52:35.737>
created_at = <Date 2020-09-27.13:20:58.342>
labels = ['interpreter-core', '3.10', 'performance']
title = 'Use PEP 590 vectorcall to speed up calls to bool()'
updated_at = <Date 2021-04-06.15:44:07.015>
user = 'https://github.com/corona10'

bugs.python.org fields:

activity = <Date 2021-04-06.15:44:07.015>
actor = 'corona10'
assignee = 'corona10'
closed = True
closed_date = <Date 2020-10-01.04:52:35.737>
closer = 'corona10'
components = ['Interpreter Core']
creation = <Date 2020-09-27.13:20:58.342>
creator = 'corona10'
dependencies = []
files = ['49475']
hgrepos = []
issue_num = 41870
keywords = ['patch']
message_count = 9.0
messages = ['377565', '377605', '377606', '377613', '377686', '377735', '377736', '390341', '390347']
nosy_count = 4.0
nosy_names = ['vstinner', 'Mark.Shannon', 'corona10', 'pablogsal']
pr_nums = ['22427', '22462', '25219']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue41870'
versions = ['Python 3.10']

[corona10]

bool type is well-used builtin types, I noticed that if we use vector call to bool type, it shows the awesome performance enhancement.

Mean +- std dev: [master] 91.4 us +- 3.3 us -> [vectorcall] 48.6 us +- 3.1 us: 1.88x faster (-47%)

[corona10]

New changeset a195bce by Dong-hee Na in branch 'master':
bpo-41870: Use PEP-590 vectorcall to speed up bool() (GH-22427)
a195bce

[corona10]

Now I close this issue.
Thank you, Mark!

[vstinner]

You can put ok<0 test in the if (nargs) branch, to avoid the test when nargs=0.

[pablogsal]

You can put ok<0 test in the if (nargs) branch, to avoid the test when nargs=0.

+1

[corona10]

New changeset fa7ce08 by Dong-hee Na in branch 'master':
bpo-41870: Avoid the test when nargs=0 (GH-22462)
fa7ce08

[corona10]

Now the suggestion is applied!
Thank you Pablo and Victor!!!

[corona10]

For the record, following built-in functions now support vectorcall calling convention from Python 3.10!!

Thank you to everyone who works with this :)

• map: bpo-43575
• filter: bpo-43287
• reversed: bpo-41922
• bool: bpo-41870
• float: bpo-41873

[corona10]

New changeset efccff9 by Dong-hee Na in branch 'master':
bpo-41870: Update What's News 3.10 about vectorcall (bpo-25219)
efccff9