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| author | INADA Naoki <methane@users.noreply.github.com> | 2018-07-11 08:42:49 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-07-11 08:42:49 (GMT) |
| commit | d5c875bbf1ef9b24349d3243b1ffaab6a9d5a78e (patch) | |
| tree | 69bb37b3de2214dc511f61eb4c2b57e9640c68c7 /Doc | |
| parent | da5e9476bbfbe61f7661fd22caba1b675e5b4397 (diff) | |
| download | cpython-d5c875bbf1ef9b24349d3243b1ffaab6a9d5a78e.zip cpython-d5c875bbf1ef9b24349d3243b1ffaab6a9d5a78e.tar.gz cpython-d5c875bbf1ef9b24349d3243b1ffaab6a9d5a78e.tar.bz2 | |
bpo-33597: Add What's New for PyGC_Head (GH-8236)
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 5fe1c71..ace814e 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -127,6 +127,10 @@ Optimizations first introduced in Python 3.4. It offers better performance and smaller size compared to Protocol 3 available since Python 3.0. +* Removed one ``Py_ssize_t`` member from ``PyGC_Head``. All GC tracked + objects (e.g. tuple, list, dict) size is reduced 4 or 8 bytes. + (Contributed by Inada Naoki in :issue:`33597`) + Build and C API Changes ======================= @@ -201,6 +205,10 @@ Changes in the Python API * :func:`shutil.copyfile` default buffer size on Windows was changed from 16 KiB to 1 MiB. +* ``PyGC_Head`` struct is changed completely. All code touched the + struct member should be rewritten. (See :issue:`33597`) + + CPython bytecode changes ------------------------ |