Frozen modules are looked up using a linear search.

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-09-15.17:42:12.775>
labels = ['interpreter-core', '3.11', 'performance']
title = 'Frozen modules are looked up using a linear search.'
updated_at = <Date 2021-09-24.10:59:10.247>
user = 'https://github.com/ericsnowcurrently'

bugs.python.org fields:

activity = <Date 2021-09-24.10:59:10.247>
actor = 'corona10'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2021-09-15.17:42:12.775>
creator = 'eric.snow'
dependencies = []
files = []
hgrepos = []
issue_num = 45213
keywords = []
message_count = 9.0
messages = ['401863', '401864', '402198', '402232', '402431', '402433', '402447', '402505', '402552']
nosy_count = 7.0
nosy_names = ['lemburg', 'barry', 'brett.cannon', 'rhettinger', 'eric.snow', 'steve.dower', 'corona10']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue45213'
versions = ['Python 3.11']