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GH-90230: Add stats to breakdown the origin of calls to PyEval_EvalFrame (GH-93284)

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Mark Shannon 2022-05-27 16:31:41 +01:00 • committed by GitHub
parent 8995177030
commit bbcf42449e
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13 changed files with 63 additions and 11 deletions
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2
Include/internal/pycore_call.h
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@ -103,6 +103,7 @@ _PyObject_CallNoArgsTstate(PyThreadState *tstate, PyObject *func) {
// Private static inline function variant of public PyObject_CallNoArgs()
static inline PyObject *
_PyObject_CallNoArgs(PyObject *func) {
EVAL_CALL_STAT_INC_IF_FUNCTION(EVAL_CALL_API, func);
PyThreadState *tstate = _PyThreadState_GET();
return _PyObject_VectorcallTstate(tstate, func, NULL, 0, NULL);
}
@ -111,6 +112,7 @@ _PyObject_CallNoArgs(PyObject *func) {
static inline PyObject *
_PyObject_FastCallTstate(PyThreadState *tstate, PyObject *func, PyObject *const *args, Py_ssize_t nargs)
{
EVAL_CALL_STAT_INC_IF_FUNCTION(EVAL_CALL_API, func);
return _PyObject_VectorcallTstate(tstate, func, args, (size_t)nargs, NULL);
}

1
Include/internal/pycore_ceval.h
View file

@ -68,6 +68,7 @@ extern PyObject* _PyEval_BuiltinsFromGlobals(
static inline PyObject*
_PyEval_EvalFrame(PyThreadState *tstate, struct _PyInterpreterFrame *frame, int throwflag)
{
EVAL_CALL_STAT_INC(EVAL_CALL_TOTAL);
if (tstate->interp->eval_frame == NULL) {
return _PyEval_EvalFrameDefault(tstate, frame, throwflag);
}

5
Include/internal/pycore_code.h
View file

@ -265,6 +265,9 @@ extern int _PyStaticCode_InternStrings(PyCodeObject *co);
#define OBJECT_STAT_INC(name) _py_stats.object_stats.name++
#define OBJECT_STAT_INC_COND(name, cond) \
do { if (cond) _py_stats.object_stats.name++; } while (0)
#define EVAL_CALL_STAT_INC(name) _py_stats.call_stats.eval_calls[name]++
#define EVAL_CALL_STAT_INC_IF_FUNCTION(name, callable) \
do { if (PyFunction_Check(callable)) _py_stats.call_stats.eval_calls[name]++; } while (0)
// Used by the _opcode extension which is built as a shared library
PyAPI_FUNC(PyObject*) _Py_GetSpecializationStats(void);
@ -276,6 +279,8 @@ PyAPI_FUNC(PyObject*) _Py_GetSpecializationStats(void);
#define CALL_STAT_INC(name) ((void)0)
#define OBJECT_STAT_INC(name) ((void)0)
#define OBJECT_STAT_INC_COND(name, cond) ((void)0)
#define EVAL_CALL_STAT_INC(name) ((void)0)
#define EVAL_CALL_STAT_INC_IF_FUNCTION(name, callable) ((void)0)
#endif // !Py_STATS
// Cache values are only valid in memory, so use native endianness.

15
Include/pystats.h
View file

@ -10,6 +10,20 @@ extern "C" {
#define SPECIALIZATION_FAILURE_KINDS 32
/* Stats for determining who is calling PyEval_EvalFrame */
#define EVAL_CALL_TOTAL 0
#define EVAL_CALL_VECTOR 1
#define EVAL_CALL_GENERATOR 2
#define EVAL_CALL_LEGACY 3
#define EVAL_CALL_FUNCTION_VECTORCALL 4
#define EVAL_CALL_BUILD_CLASS 5
#define EVAL_CALL_SLOT 6
#define EVAL_CALL_FUNCTION_EX 7
#define EVAL_CALL_API 8
#define EVAL_CALL_METHOD 9
#define EVAL_CALL_KINDS 10
typedef struct _specialization_stats {
uint64_t success;
uint64_t failure;
@ -31,6 +45,7 @@ typedef struct _call_stats {
uint64_t pyeval_calls;
uint64_t frames_pushed;
uint64_t frame_objects_created;
uint64_t eval_calls[EVAL_CALL_KINDS];
} CallStats;
typedef struct _object_stats {