Thanks to visit codestin.com
Credit goes to github.com

Skip to content

gh-90815: Add mimalloc memory allocator #31164

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 19 commits into from
Closed

gh-90815: Add mimalloc memory allocator #31164

Changes from 1 commit
Commits
Show all changes
19 commits
Select commit Hold shift + click to select a range
e6215a9
bpo-46657: Add mimalloc memory allocator
tiran Feb 6, 2022
67bd38c
Add mimalloc 2.0.3
tiran Feb 6, 2022
67f20a3
Backport fixes from dev branch
tiran Feb 6, 2022
c06b9e4
Drop experimental valgrind code
tiran Feb 6, 2022
d2e1590
Add option to enable mimalloc secure mode
tiran Feb 8, 2022
be14cd0
Only enable mimalloc when stdatomic.h is available
tiran Feb 8, 2022
50cbff2
Fix build without mimalloc
tiran Feb 9, 2022
399500e
disable verbose debug messages
tiran Feb 9, 2022
f27d04f
Disable MI_DEBUG in ASAN builds
tiran Feb 9, 2022
0367c82
Really force off MI_DEBUG in release builds
tiran Feb 9, 2022
5721543
Backport upstream fix for ubsan
tiran Feb 10, 2022
6662acf
Update to mimalloc 2.0.5
tiran Mar 10, 2022
51deac9
Fix refleak MallocInfoType
tiran Mar 10, 2022
95d904a
Move mimalloc headers into internal header directory
tiran Mar 10, 2022
82642cc
Update to mimalloc 2.0.6
tiran May 20, 2022
716a5f3
Hook up mi_collect for debugging
tiran May 20, 2022
cc0d5e5
Use heap type for malloc info struct
tiran Aug 30, 2022
5d4c193
Regen global symbols
tiran Aug 30, 2022
65af44c
Fix memory leak
tiran Aug 30, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Next Next commit
Really force off MI_DEBUG in release builds
  • Loading branch information
@tiran
tiran committed Aug 30, 2022
commit 0367c822de80e8992dc4f9155e2945f9b1f368ba
23 changes: 16 additions & 7 deletions Include/internal/pycore_mimalloc.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,10 @@
#define MI_DEBUG_FREED PYMEM_DEADBYTE
#define MI_DEBUG_PADDING PYMEM_FORBIDDENBYTE

/* ASAN builds don't use MI_DEBUG. ASAN + MI_DEBUG triggers additional
* checks, which can cause mimalloc to print warnings to stderr. The
* warnings break some tests.
/* ASAN builds don't use MI_DEBUG.
*
* ASAN + MI_DEBUG triggers additional checks, which can cause mimalloc
* to print warnings to stderr. The warnings break some tests.
*
* mi_usable_size: pointer might not point to a valid heap region:
* ...
Expand All @@ -30,18 +31,26 @@
# define MI_DEBUG 0
#endif

/* Perform additional checks in debug builds, see mimalloc-types.h
#ifdef Py_DEBUG
/* Debug: Perform additional checks in debug builds, see mimalloc-types.h
* - enable basic and internal assertion checks with MI_DEBUG 2
* - check for double free, invalid pointer free
* - use guard pages to check for buffer overflows
*/
#ifdef Py_DEBUG
# ifndef MI_DEBUG
# define MI_DEBUG 2
# endif
# define MI_SECURE 4
#elif defined(PY_MIMALLOC_SECURE)
# define MI_SECURE PY_MIMALLOC_SECURE
#else
// Production: no debug checks, secure depends on --enable-mimalloc-secure
# ifndef MI_DEBUG
# define MI_DEBUG 0
# endif
# if defined(PY_MIMALLOC_SECURE)
# define MI_SECURE PY_MIMALLOC_SECURE
# else
# define MI_SECURE 0
# endif
#endif

/* Prefix all non-static symbols with "_Py_"
Expand Down