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author | Mienxiu <82512658+mienxiu@users.noreply.github.com> | 2023-10-16 18:52:13 (GMT) |
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committer | GitHub <noreply@github.com> | 2023-10-16 18:52:13 (GMT) |
commit | f07ca27709855d4637b43bba23384cc795143ee3 (patch) | |
tree | 50fa5c79d745421352ecb7a9af191025abebcfb1 /Doc/c-api | |
parent | 6a4528d70c8435d4403e09937068a446f35a78ac (diff) | |
download | cpython-f07ca27709855d4637b43bba23384cc795143ee3.zip cpython-f07ca27709855d4637b43bba23384cc795143ee3.tar.gz cpython-f07ca27709855d4637b43bba23384cc795143ee3.tar.bz2 |
C-API docs: Clarify the size of arenas (#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.
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 |