add more freelists

Author: eendebakpt

Include/internal/pycore_freelist.h

@@ -40,7 +40,6 @@ _Py_freelists_GET(void)
 #define _Py_FREELIST_POP(TYPE, NAME) \
     _Py_CAST(TYPE*, _PyFreeList_Pop(&_Py_freelists_GET()->NAME))
 
-
 // Pops a non-PyObject data structure from the freelist, returns NULL if the
 // freelist is empty.
 #define _Py_FREELIST_POP_MEM(NAME) \

Include/internal/pycore_freelist_state.h

@@ -18,6 +18,7 @@ extern "C" {
 #  define Py_slices_MAXFREELIST 1
 #  define Py_ranges_MAXFREELIST 10
 #  define Py_shared_iters_MAXFREELIST 24
+#  define Py_class_method_MAXFREELIST 10
 #  define Py_contexts_MAXFREELIST 255
 #  define Py_async_gens_MAXFREELIST 80
 #  define Py_async_gen_asends_MAXFREELIST 80
@@ -46,6 +47,7 @@ struct _Py_freelists {
     struct _Py_freelist slices;
     struct _Py_freelist ranges;
     struct _Py_freelist shared_iters;
+    struct _Py_freelist class_method;
     struct _Py_freelist contexts;
     struct _Py_freelist async_gens;
     struct _Py_freelist async_gen_asends;

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 +113,13 @@ PyMethod_New(PyObject *func, PyObject *self)
         PyErr_BadInternalCall();
         return NULL;
     }
-    PyMethodObject *im = PyObject_GC_New(PyMethodObject, &PyMethod_Type);
+
+    PyMethodObject *im = _Py_FREELIST_POP(PyMethodObject, class_method);
     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 +250,7 @@ method_dealloc(PyObject *self)
         PyObject_ClearWeakRefs((PyObject *)im);
     Py_DECREF(im->im_func);
     Py_XDECREF(im->im_self);
-    PyObject_GC_Del(im);
+    _Py_FREELIST_FREE(class_method, (PyObject *)im, PyObject_GC_Del);
 }
 
 static PyObject *

Objects/iterobject.c

@@ -4,6 +4,7 @@
 #include "pycore_abstract.h"      // _PyObject_HasLen()
 #include "pycore_call.h"          // _PyObject_CallNoArgs()
 #include "pycore_ceval.h"         // _PyEval_GetBuiltin()
+#include "pycore_freelist.h"      // _Py_FREELIST_PUSH(), _Py_FREELIST_POP()
 #include "pycore_object.h"        // _PyObject_GC_TRACK()
 
 typedef struct {
@@ -21,9 +22,16 @@ PySeqIter_New(PyObject *seq)
         PyErr_BadInternalCall();
         return NULL;
     }
-    it = PyObject_GC_New(seqiterobject, &PySeqIter_Type);
-    if (it == NULL)
-        return NULL;
+
+    it = _Py_FREELIST_POP(seqiterobject, shared_iters);
+    if (it == NULL) {
+        it = PyObject_GC_New(seqiterobject, &PySeqIter_Type);
+        if (it == NULL)
+            return NULL;
+    }
+    else {
+        Py_SET_TYPE(it, &PySeqIter_Type);
+    }
     it->it_index = 0;
     it->it_seq = Py_NewRef(seq);
     _PyObject_GC_TRACK(it);
@@ -35,7 +43,8 @@ iter_dealloc(seqiterobject *it)
 {
     _PyObject_GC_UNTRACK(it);
     Py_XDECREF(it->it_seq);
-    PyObject_GC_Del(it);
+    assert(sizeof(seqiterobject)==sizeof(_PyListIterObject));
+    _Py_FREELIST_FREE(shared_iters, (PyObject *)it, PyObject_GC_Del);
 }
 
 static int

Objects/typeobject.c

@@ -6,7 +6,6 @@
 #include "pycore_code.h"          // CO_FAST_FREE
 #include "pycore_dict.h"          // _PyDict_KeysSize()
 #include "pycore_frame.h"         // _PyInterpreterFrame
-#include "pycore_freelist.h"      // _Py_FREELIST_FREE(), _Py_FREELIST_POP()
 #include "pycore_lock.h"          // _PySeqLock_*
 #include "pycore_long.h"          // _PyLong_IsNegative(), _PyLong_GetOne()
 #include "pycore_memoryobject.h"  // _PyMemoryView_FromBufferProc()