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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2023-10-16 19:03:18 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-10-16 19:03:18 (GMT) |
| commit | 94525a7a4db3a5e82f0e635e21778e8bb31f800a (patch) | |
| tree | a97ca6944bd13cf88061502c73e32484a5069cd8 /Doc/c-api | |
| parent | 3b87e520fcbe4ceb94e3a46a874a450ee9d50b01 (diff) | |
| download | cpython-94525a7a4db3a5e82f0e635e21778e8bb31f800a.zip cpython-94525a7a4db3a5e82f0e635e21778e8bb31f800a.tar.gz cpython-94525a7a4db3a5e82f0e635e21778e8bb31f800a.tar.bz2 | |
[3.12] C-API docs: Clarify the size of arenas (GH-110895) (#110946)
C-API docs: Clarify the size of arenas (GH-110895)
Clarify the size of arenas
From 3.10.0 alpha 7, the pymalloc allocator uses arenas with a fixed size of 1
MiB on 64-bit platforms instead of 256 KiB on 32-bit platforms.
(cherry picked from commit f07ca27709855d4637b43bba23384cc795143ee3)
Co-authored-by: Mienxiu <82512658+mienxiu@users.noreply.github.com>
Diffstat (limited to 'Doc/c-api')
| -rw-r--r-- | Doc/c-api/memory.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/c-api/memory.rst b/Doc/c-api/memory.rst index e98c178..52ef417 100644 --- a/Doc/c-api/memory.rst +++ b/Doc/c-api/memory.rst @@ -626,7 +626,8 @@ The pymalloc allocator Python has a *pymalloc* allocator optimized for small objects (smaller or equal to 512 bytes) with a short lifetime. It uses memory mappings called "arenas" -with a fixed size of 256 KiB. It falls back to :c:func:`PyMem_RawMalloc` and +with a fixed size of either 256 KiB on 32-bit platforms or 1 MiB on 64-bit +platforms. It falls back to :c:func:`PyMem_RawMalloc` and :c:func:`PyMem_RawRealloc` for allocations larger than 512 bytes. *pymalloc* is the :ref:`default allocator <default-memory-allocators>` of the |