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classification
Title: Further speed up Python-to-Python calls.
Type: performance Stage: patch review
Components: Interpreter Core Versions: Python 3.11
process
Status: open Resolution:
Dependencies: Superseder:
Assigned To: Mark.Shannon Nosy List: Mark.Shannon, brandtbucher
Priority: normal Keywords: patch

Created on 2021-11-08 17:17 by Mark.Shannon, last changed 2022-04-11 14:59 by admin.

Pull Requests
URL Status Linked Edit
PR 29516 closed Mark.Shannon, 2021-11-10 13:05
PR 29524 merged Mark.Shannon, 2021-11-11 17:06
PR 29575 merged Mark.Shannon, 2021-11-16 11:37
Messages (3)
msg405970 - (view) Author: Mark Shannon (Mark.Shannon) * (Python committer) Date: 2021-11-08 17:17 
There are three things we want to do:

1. Speed up pushing and popping frames. See https://github.com/faster-cpython/ideas/issues/111 for details.
2. Avoid tracing and other admin overhead on entering and leaving. See https://github.com/faster-cpython/ideas/issues/112.
3. Keep the remaining recursion depth in the cframe, to reduce the work for a recursion check from
`++tstate->recursion_depth > tstate->interp->ceval.recursion_limit`
to
`cframe.recursion_overhead-- > 0`
msg406397 - (view) Author: Mark Shannon (Mark.Shannon) * (Python committer) Date: 2021-11-16 11:02 
New changeset b9310773756f40f77e075f221a90dd41e6964efc by Mark Shannon in branch 'main':
bpo-45753: Make recursion checks more efficient. (GH-29524)
https://github.com/python/cpython/commit/b9310773756f40f77e075f221a90dd41e6964efc
msg407445 - (view) Author: Mark Shannon (Mark.Shannon) * (Python committer) Date: 2021-12-01 12:09 
New changeset 49444fb807ecb396462c8e5f547eeb5c6bc5d4de by Mark Shannon in branch 'main':
bpo-45753: Interpreter internal tweaks (GH-29575)
https://github.com/python/cpython/commit/49444fb807ecb396462c8e5f547eeb5c6bc5d4de
History
Date User Action Args
2022-04-11 14:59:52adminsetgithub: 89914
2021-12-01 12:09:41Mark.Shannonsetmessages: + msg407445
2021-11-16 11:37:56Mark.Shannonsetpull_requests: + pull_request27819
2021-11-16 11:02:05Mark.Shannonsetmessages: + msg406397
2021-11-11 18:02:28brandtbuchersetnosy: + brandtbucher
2021-11-11 17:06:52Mark.Shannonsetpull_requests: + pull_request27774
2021-11-10 13:05:42Mark.Shannonsetkeywords: + patch
stage: patch review
pull_requests: + pull_request27768
2021-11-08 17:17:55Mark.Shannoncreate