cpython

mirror of https://github.com/python/cpython.git synced 2026-01-08 08:22:41 +00:00

History

Neil Schemenauer 113de8545f GH-133136: Revise QSBR to reduce excess memory held (gh-135473) The free threading build uses QSBR to delay the freeing of dictionary keys and list arrays when the objects are accessed by multiple threads in order to allow concurrent reads to proceed with holding the object lock. The requests are processed in batches to reduce execution overhead, but for large memory blocks this can lead to excess memory usage. Take into account the size of the memory block when deciding when to process QSBR requests. Also track the amount of memory being held by QSBR for mimalloc pages. Advance the write sequence if this memory exceeds a limit. Advancing the sequence will allow it to be freed more quickly. Process the held QSBR items from the "eval breaker", rather than from `_PyMem_FreeDelayed()`. This gives a higher chance that the global read sequence has advanced enough so that items can be freed. Co-authored-by: Sam Gross <colesbury@gmail.com>		2025-06-25 00:06:32 -07:00
..
mypy	gh-131507: Add support for syntax highlighting in PyREPL (GH-133247)	2025-05-02 20:22:31 +02:00
NEWS.d	GH-133136: Revise QSBR to reduce excess memory held (gh-135473)	2025-06-25 00:06:32 -07:00
rhel7
ACKS	patchcheck: use URL paths to identify upstream remote (GH-135806)	2025-06-22 04:51:23 +00:00
externals.spdx.json	GH-132983: Build ``_zstd`` on Windows (#133366 )	2025-05-06 00:58:47 +01:00
HISTORY
indent.pro
platform_triplet.c	gh-132026: Ensure _MIPS_SIM has defined _ABI identifiers for comparison (GH-132027)	2025-04-27 21:56:00 +00:00
Porting
python-config.in
python-config.sh.in
python-embed.pc.in
python.man	Manpage: -X gil is not related to PYTHON_HISTORY (#133753 )	2025-05-09 17:11:21 +03:00
python.pc.in
README
README.AIX
README.valgrind
sbom.spdx.json	gh-135532: update `Modules/_hacl/python_hacl_namespaces.h` (#135741 )	2025-06-20 11:32:38 +02:00
SpecialBuilds.txt	GH-129763: Remove the LLTRACE macro (GH-129764)	2025-02-07 08:49:51 -08:00
stable_abi.toml	gh-108512: Add and use new replacements for PySys_GetObject() (GH-111035)	2025-05-28 20:11:09 +03:00
svnmap.txt
valgrind-python.supp
vgrindefs

README

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)