diff options
| -rw-r--r-- | Include/internal/pycore_freelist_state.h | 2 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Core_and_Builtins/2025-01-07-19-48-56.gh-issue-126703.0ISs-7.rst | 1 | ||||
| -rw-r--r-- | Objects/classobject.c | 11 | ||||
| -rw-r--r-- | Objects/object.c | 1 |
4 files changed, 12 insertions, 3 deletions
diff --git a/Include/internal/pycore_freelist_state.h b/Include/internal/pycore_freelist_state.h index a1a94c1..2ccd1ac 100644 --- a/Include/internal/pycore_freelist_state.h +++ b/Include/internal/pycore_freelist_state.h @@ -22,6 +22,7 @@ extern "C" { # define Py_futureiters_MAXFREELIST 255 # define Py_object_stack_chunks_MAXFREELIST 4 # define Py_unicode_writers_MAXFREELIST 1 +# define Py_pymethodobjects_MAXFREELIST 20 // A generic freelist of either PyObjects or other data structures. struct _Py_freelist { @@ -48,6 +49,7 @@ struct _Py_freelists { struct _Py_freelist futureiters; struct _Py_freelist object_stack_chunks; struct _Py_freelist unicode_writers; + struct _Py_freelist pymethodobjects; }; #ifdef __cplusplus diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-01-07-19-48-56.gh-issue-126703.0ISs-7.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-01-07-19-48-56.gh-issue-126703.0ISs-7.rst new file mode 100644 index 0000000..ecb8edd --- /dev/null +++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-01-07-19-48-56.gh-issue-126703.0ISs-7.rst @@ -0,0 +1 @@ +Improve performance of class methods by using a freelist. diff --git a/Objects/classobject.c b/Objects/classobject.c index 775894a..58e1d17 100644 --- a/Objects/classobject.c +++ b/Objects/classobject.c @@ -3,6 +3,7 @@ #include "Python.h" #include "pycore_call.h" // _PyObject_VectorcallTstate() #include "pycore_ceval.h" // _PyEval_GetBuiltin() +#include "pycore_freelist.h" #include "pycore_object.h" #include "pycore_pyerrors.h" #include "pycore_pystate.h" // _PyThreadState_GET() @@ -112,9 +113,12 @@ PyMethod_New(PyObject *func, PyObject *self) PyErr_BadInternalCall(); return NULL; } - PyMethodObject *im = PyObject_GC_New(PyMethodObject, &PyMethod_Type); + PyMethodObject *im = _Py_FREELIST_POP(PyMethodObject, pymethodobjects); if (im == NULL) { - return NULL; + im = PyObject_GC_New(PyMethodObject, &PyMethod_Type); + if (im == NULL) { + return NULL; + } } im->im_weakreflist = NULL; im->im_func = Py_NewRef(func); @@ -245,7 +249,8 @@ method_dealloc(PyObject *self) PyObject_ClearWeakRefs((PyObject *)im); Py_DECREF(im->im_func); Py_XDECREF(im->im_self); - PyObject_GC_Del(im); + assert(Py_IS_TYPE(self, &PyMethod_Type)); + _Py_FREELIST_FREE(pymethodobjects, (PyObject *)im, PyObject_GC_Del); } static PyObject * diff --git a/Objects/object.c b/Objects/object.c index 4c30257..9befd92 100644 --- a/Objects/object.c +++ b/Objects/object.c @@ -937,6 +937,7 @@ _PyObject_ClearFreeLists(struct _Py_freelists *freelists, int is_finalization) } clear_freelist(&freelists->unicode_writers, is_finalization, PyMem_Free); clear_freelist(&freelists->ints, is_finalization, free_object); + clear_freelist(&freelists->pymethodobjects, is_finalization, free_object); } /* |