diff options
Diffstat (limited to 'Misc/NEWS.d/next/Core and Builtins/2021-02-21-14-19-35.bpo-37448.btl7vO.rst')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2021-02-21-14-19-35.bpo-37448.btl7vO.rst | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-02-21-14-19-35.bpo-37448.btl7vO.rst b/Misc/NEWS.d/next/Core and Builtins/2021-02-21-14-19-35.bpo-37448.btl7vO.rst deleted file mode 100644 index fe771a5..0000000 --- a/Misc/NEWS.d/next/Core and Builtins/2021-02-21-14-19-35.bpo-37448.btl7vO.rst +++ /dev/null @@ -1,15 +0,0 @@ -Add a radix tree based memory map to track in-use obmalloc arenas. Use to -replace the old implementation of address_in_range(). The radix tree -approach makes it easy to increase pool sizes beyond the OS page size. -Boosting the pool and arena size allows obmalloc to handle a significantly -higher percentage of requests from its ultra-fast paths. - -It also has the advantage of eliminating the memory unsanitary behavior of -the previous address_in_range(). The old address_in_range() was marked with -the annotations _Py_NO_SANITIZE_ADDRESS, _Py_NO_SANITIZE_THREAD, and -_Py_NO_SANITIZE_MEMORY. Those annotations are no longer needed. - -To disable the radix tree map, set a preprocessor flag as follows: -`-DWITH_PYMALLOC_RADIX_TREE=0`. - -Co-authored-by: Tim Peters <tim.peters@gmail.com> |