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gh-107674: Improve performance of sys.settrace (GH-117133)

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* Check tracing in RESUME_CHECK

* Only change to RESUME_CHECK if not tracing
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Tian Gao 2024-05-03 11:49:24 -07:00 • committed by GitHub
parent 998c3856c1
commit 9c14ed0618
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7 changed files with 63 additions and 52 deletions
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Python/instrumentation.c
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@ -1217,15 +1217,13 @@ int
_Py_call_instrumentation_line(PyThreadState *tstate, _PyInterpreterFrame* frame, _Py_CODEUNIT *instr, _Py_CODEUNIT *prev)
{
PyCodeObject *code = _PyFrame_GetCode(frame);
assert(tstate->tracing == 0);
assert(is_version_up_to_date(code, tstate->interp));
assert(instrumentation_cross_checks(tstate->interp, code));
int i = (int)(instr - _PyCode_CODE(code));
_PyCoMonitoringData *monitoring = code->_co_monitoring;
_PyCoLineInstrumentationData *line_data = &monitoring->lines[i];
if (tstate->tracing) {
goto done;
}
PyInterpreterState *interp = tstate->interp;
int8_t line_delta = line_data->line_delta;
int line = 0;