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gh-123923: Defer refcounting for f_executable in _PyInterpreterFrame (#123924)

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Use a `_PyStackRef` and defer the reference to `f_executable` when
possible. This avoids some reference count contention in the common case
of executing the same code object from multiple threads concurrently in
the free-threaded build.
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Sam Gross 2024-09-12 12:37:06 -04:00 • committed by GitHub
parent 4ed7d1d6ac
commit b2afe2aae4
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18 changed files with 177 additions and 99 deletions
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Python/legacy_tracing.c
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@ -143,9 +143,8 @@ _PyEval_SetOpcodeTrace(
bool enable
) {
assert(frame != NULL);
assert(PyCode_Check(frame->f_frame->f_executable));
PyCodeObject *code = (PyCodeObject *)frame->f_frame->f_executable;
PyCodeObject *code = _PyFrame_GetCode(frame->f_frame);
_PyMonitoringEventSet events = 0;
if (_PyMonitoring_GetLocalEvents(code, PY_MONITORING_SYS_TRACE_ID, &events) < 0) {