Skip to content

bpo-40521: Disable list free list in subinterpreters #19959

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

Merged
merged 2 commits into from
May 6, 2020
Merged

bpo-40521: Disable list free list in subinterpreters #19959

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
d720fef
bpo-40521: Disable list free list in subinterpreters
vstinner May 6, 2020
bcfa9ca
Fix typo
vstinner May 6, 2020
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
9 changes: 8 additions & 1 deletion Objects/listobject.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -98,8 +98,15 @@ list_preallocate_exact(PyListObject *self, Py_ssize_t size)

/* Empty list reuse scheme to save calls to malloc and free */
#ifndef PyList_MAXFREELIST
#define PyList_MAXFREELIST 80
# define PyList_MAXFREELIST 80
#endif

/* bpo-40521: list free lists are shared by all interpreters. */
#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
# undef PyList_MAXFREELIST
# define PyList_MAXFREELIST 0
#endif

static PyListObject *free_list[PyList_MAXFREELIST];
static int numfree = 0;

Expand Down