mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-03 16:39:00 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

gh-117783: Immortalize objects that use deferred reference counting (#118112)

Browse source 
Deferred reference counting is not fully implemented yet. As a temporary
measure, we immortalize objects that would use deferred reference
counting to avoid multi-threaded scaling bottlenecks.

This is only performed in the free-threaded build once the first
non-main thread is started. Additionally, some tests, including refleak
tests, suppress this behavior.
This commit is contained in:
Sam Gross 2024-04-29 14:36:02 -04:00 • committed by GitHub
parent 8d4b756fd3
commit 7ccacb220d
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
13 changed files with 134 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Lib/concurrent/futures/process.py
View file

@ -296,8 +296,9 @@ class _ExecutorManagerThread(threading.Thread):
# if there is no pending work item.
def weakref_cb(_,
thread_wakeup=self.thread_wakeup,
shutdown_lock=self.shutdown_lock):
mp.util.debug('Executor collected: triggering callback for'
shutdown_lock=self.shutdown_lock,
mp_util_debug=mp.util.debug):
mp_util_debug('Executor collected: triggering callback for'
' QueueManager wakeup')
with shutdown_lock:
thread_wakeup.wakeup()