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| author | Sam Gross <colesbury@gmail.com> | 2024-02-16 16:22:27 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-02-16 16:22:27 (GMT) |
| commit | b24c9161a651f549ed48f4b4dba8996fe9cc4e09 (patch) | |
| tree | 549acacced5ca0b1923e0df94b40ef633c6cdf8f /Lib/test/test_frame.py | |
| parent | f92857a93016aa26ba93959d2bdb690ef52e7f07 (diff) | |
| download | cpython-b24c9161a651f549ed48f4b4dba8996fe9cc4e09.zip cpython-b24c9161a651f549ed48f4b4dba8996fe9cc4e09.tar.gz cpython-b24c9161a651f549ed48f4b4dba8996fe9cc4e09.tar.bz2 | |
gh-112529: Make the GC scheduling thread-safe (#114880)
The GC keeps track of the number of allocations (less deallocations)
since the last GC. This buffers the count in thread-local state and uses
atomic operations to modify the per-interpreter count. The thread-local
buffering avoids contention on shared state.
A consequence is that the GC scheduling is not as precise, so
"test_sneaky_frame_object" is skipped because it requires that the GC be
run exactly after allocating a frame object.
Diffstat (limited to 'Lib/test/test_frame.py')
| -rw-r--r-- | Lib/test/test_frame.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/test/test_frame.py b/Lib/test/test_frame.py index baed03d..f88206d 100644 --- a/Lib/test/test_frame.py +++ b/Lib/test/test_frame.py @@ -13,7 +13,7 @@ except ImportError: _testcapi = None from test import support -from test.support import threading_helper +from test.support import threading_helper, Py_GIL_DISABLED from test.support.script_helper import assert_python_ok @@ -294,6 +294,7 @@ class TestIncompleteFrameAreInvisible(unittest.TestCase): assert_python_ok("-c", code) @support.cpython_only + @unittest.skipIf(Py_GIL_DISABLED, "test requires precise GC scheduling") def test_sneaky_frame_object(self): def trace(frame, event, arg): |