python3.11/00147-add-debug-malloc-stats.patch

diff -up Python-3.2.2/Include/dictobject.h.add-debug-malloc-stats Python-3.2.2/Include/dictobject.h
--- Python-3.2.2/Include/dictobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/dictobject.h	2011-09-16 18:57:24.969825060 -0400
@@ -156,6 +156,8 @@ PyAPI_FUNC(PyObject *) PyDict_GetItemStr
 PyAPI_FUNC(int) PyDict_SetItemString(PyObject *dp, const char *key, PyObject *item);
 PyAPI_FUNC(int) PyDict_DelItemString(PyObject *dp, const char *key);
 
+PyAPI_FUNC(void) _PyDict_DebugMallocStats(FILE *out);
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Include/floatobject.h.add-debug-malloc-stats Python-3.2.2/Include/floatobject.h
--- Python-3.2.2/Include/floatobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/floatobject.h	2011-09-16 18:57:24.970825060 -0400
@@ -110,6 +110,8 @@ PyAPI_FUNC(double) _PyFloat_Unpack8(cons
 /* free list api */
 PyAPI_FUNC(int) PyFloat_ClearFreeList(void);
 
+PyAPI_FUNC(void) _PyFloat_DebugMallocStats(FILE* out);
+
 /* Format the object based on the format_spec, as defined in PEP 3101
    (Advanced String Formatting). */
 PyAPI_FUNC(PyObject *) _PyFloat_FormatAdvanced(PyObject *obj,
diff -up Python-3.2.2/Include/frameobject.h.add-debug-malloc-stats Python-3.2.2/Include/frameobject.h
--- Python-3.2.2/Include/frameobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/frameobject.h	2011-09-16 18:57:24.970825060 -0400
@@ -79,6 +79,8 @@ PyAPI_FUNC(void) PyFrame_FastToLocals(Py
 
 PyAPI_FUNC(int) PyFrame_ClearFreeList(void);
 
+PyAPI_FUNC(void) _PyFrame_DebugMallocStats(FILE *out);
+
 /* Return the line of code the frame is currently executing. */
 PyAPI_FUNC(int) PyFrame_GetLineNumber(PyFrameObject *);
 
diff -up Python-3.2.2/Include/listobject.h.add-debug-malloc-stats Python-3.2.2/Include/listobject.h
--- Python-3.2.2/Include/listobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/listobject.h	2011-09-16 18:57:24.971825060 -0400
@@ -71,6 +71,8 @@ PyAPI_FUNC(PyObject *) _PyList_Extend(Py
 #define PyList_GET_SIZE(op)    Py_SIZE(op)
 #endif
 
+PyAPI_FUNC(void) _PyList_DebugMallocStats(FILE *out);
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Include/methodobject.h.add-debug-malloc-stats Python-3.2.2/Include/methodobject.h
--- Python-3.2.2/Include/methodobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/methodobject.h	2011-09-16 18:57:24.971825060 -0400
@@ -81,6 +81,10 @@ typedef struct {
 
 PyAPI_FUNC(int) PyCFunction_ClearFreeList(void);
 
+PyAPI_FUNC(void) _PyCFunction_DebugMallocStats(FILE *out);
+PyAPI_FUNC(void) _PyMethod_DebugMallocStats(FILE *out);
+
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Include/object.h.add-debug-malloc-stats Python-3.2.2/Include/object.h
--- Python-3.2.2/Include/object.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/object.h	2011-09-16 18:57:24.972825060 -0400
@@ -919,6 +919,13 @@ PyAPI_DATA(PyObject *) _PyTrash_delete_l
     else \
         _PyTrash_deposit_object((PyObject*)op);
 
+PyAPI_FUNC(void)
+_PyDebugAllocatorStats(FILE *out, const char *block_name, int num_blocks,
+		       size_t sizeof_block);
+
+PyAPI_FUNC(void)
+_PyObject_DebugTypeStats(FILE *out);
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Include/objimpl.h.add-debug-malloc-stats Python-3.2.2/Include/objimpl.h
--- Python-3.2.2/Include/objimpl.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/objimpl.h	2011-09-16 18:57:24.972825060 -0400
@@ -101,13 +101,13 @@ PyAPI_FUNC(void) PyObject_Free(void *);
 
 /* Macros */
 #ifdef WITH_PYMALLOC
+PyAPI_FUNC(void) _PyObject_DebugMallocStats(FILE *out);
 #ifdef PYMALLOC_DEBUG   /* WITH_PYMALLOC && PYMALLOC_DEBUG */
 PyAPI_FUNC(void *) _PyObject_DebugMalloc(size_t nbytes);
 PyAPI_FUNC(void *) _PyObject_DebugRealloc(void *p, size_t nbytes);
 PyAPI_FUNC(void) _PyObject_DebugFree(void *p);
 PyAPI_FUNC(void) _PyObject_DebugDumpAddress(const void *p);
 PyAPI_FUNC(void) _PyObject_DebugCheckAddress(const void *p);
-PyAPI_FUNC(void) _PyObject_DebugMallocStats(void);
 PyAPI_FUNC(void *) _PyObject_DebugMallocApi(char api, size_t nbytes);
 PyAPI_FUNC(void *) _PyObject_DebugReallocApi(char api, void *p, size_t nbytes);
 PyAPI_FUNC(void) _PyObject_DebugFreeApi(char api, void *p);
diff -up Python-3.2.2/Include/setobject.h.add-debug-malloc-stats Python-3.2.2/Include/setobject.h
--- Python-3.2.2/Include/setobject.h.add-debug-malloc-stats	2011-09-16 19:10:58.448817301 -0400
+++ Python-3.2.2/Include/setobject.h	2011-09-16 19:12:16.343816559 -0400
@@ -101,6 +101,8 @@ PyAPI_FUNC(PyObject *) PySet_Pop(PyObjec
 PyAPI_FUNC(int) _PySet_Update(PyObject *set, PyObject *iterable);
 #endif
 
+PyAPI_FUNC(void) _PySet_DebugMallocStats(FILE *out);
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Include/tupleobject.h.add-debug-malloc-stats Python-3.2.2/Include/tupleobject.h
--- Python-3.2.2/Include/tupleobject.h.add-debug-malloc-stats	2011-09-16 19:10:45.540817425 -0400
+++ Python-3.2.2/Include/tupleobject.h	2011-09-16 19:12:41.446816320 -0400
@@ -63,6 +63,7 @@ PyAPI_FUNC(void) _PyTuple_MaybeUntrack(P
 #endif
 
 PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
+PyAPI_FUNC(void) _PyTuple_DebugMallocStats(FILE *out);
 
 #ifdef __cplusplus
 }
diff -up Python-3.2.2/Include/unicodeobject.h.add-debug-malloc-stats Python-3.2.2/Include/unicodeobject.h
--- Python-3.2.2/Include/unicodeobject.h.add-debug-malloc-stats	2011-09-03 12:16:40.000000000 -0400
+++ Python-3.2.2/Include/unicodeobject.h	2011-09-16 18:57:24.973825060 -0400
@@ -1670,6 +1670,8 @@ PyAPI_FUNC(Py_UNICODE*) PyUnicode_AsUnic
     );
 #endif /* Py_LIMITED_API */
 
+PyAPI_FUNC(void) _PyUnicode_DebugMallocStats(FILE *out);
+
 #ifdef __cplusplus
 }
 #endif
diff -up Python-3.2.2/Lib/test/test_sys.py.add-debug-malloc-stats Python-3.2.2/Lib/test/test_sys.py
--- Python-3.2.2/Lib/test/test_sys.py.add-debug-malloc-stats	2011-09-16 18:57:24.940825060 -0400
+++ Python-3.2.2/Lib/test/test_sys.py	2011-09-16 19:23:50.415809940 -0400
@@ -564,6 +564,18 @@ class SysModuleTest(unittest.TestCase):
             expected = None
         self.check_fsencoding(fs_encoding, expected)
 
+    def test_debugmallocstats(self):
+        # Test sys._debugmallocstats()
+
+        import subprocess
+
+        # Verify writing to stderr:
+        p = subprocess.Popen([sys.executable,
+                              '-c', 'import sys; sys._debugmallocstats()'],
+                             stderr=subprocess.PIPE)
+        out, err = p.communicate()
+        p.wait()
+        self.assertIn(b"arenas allocated current", err)
 
 class SizeofTest(unittest.TestCase):
 
diff -up Python-3.2.2/Objects/classobject.c.add-debug-malloc-stats Python-3.2.2/Objects/classobject.c
--- Python-3.2.2/Objects/classobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/classobject.c	2011-09-16 18:57:24.975825060 -0400
@@ -399,6 +399,15 @@ PyMethod_Fini(void)
     (void)PyMethod_ClearFreeList();
 }
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyMethod_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PyMethodObject",
+                           numfree, sizeof(PyMethodObject));
+}
+
 /* ------------------------------------------------------------------------
  * instance method
  */
diff -up Python-3.2.2/Objects/dictobject.c.add-debug-malloc-stats Python-3.2.2/Objects/dictobject.c
--- Python-3.2.2/Objects/dictobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/dictobject.c	2011-09-16 18:57:24.976825060 -0400
@@ -217,6 +217,15 @@ show_track(void)
 static PyDictObject *free_list[PyDict_MAXFREELIST];
 static int numfree = 0;
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyDict_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PyDictObject", numfree, sizeof(PyDictObject));
+}
+
+
 void
 PyDict_Fini(void)
 {
diff -up Python-3.2.2/Objects/floatobject.c.add-debug-malloc-stats Python-3.2.2/Objects/floatobject.c
--- Python-3.2.2/Objects/floatobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/floatobject.c	2011-09-16 18:57:24.981825060 -0400
@@ -50,6 +50,22 @@ typedef struct _floatblock PyFloatBlock;
 static PyFloatBlock *block_list = NULL;
 static PyFloatObject *free_list = NULL;
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyFloat_DebugMallocStats(FILE *out)
+{
+  int num_blocks = 0;
+  PyFloatBlock *block;
+
+  /* Walk the block list, counting */
+  for (block = block_list; block ; block = block->next) {
+      num_blocks++;
+  }
+
+  _PyDebugAllocatorStats(out,
+                         "PyFloatBlock", num_blocks, sizeof(PyFloatBlock));
+}
+
 static PyFloatObject *
 fill_free_list(void)
 {
diff -up Python-3.2.2/Objects/frameobject.c.add-debug-malloc-stats Python-3.2.2/Objects/frameobject.c
--- Python-3.2.2/Objects/frameobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/frameobject.c	2011-09-16 18:57:24.982825060 -0400
@@ -953,3 +953,13 @@ PyFrame_Fini(void)
     Py_XDECREF(builtin_object);
     builtin_object = NULL;
 }
+
+/* Print summary info about the state of the optimized allocator */
+void
+_PyFrame_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PyFrameObject",
+                           numfree, sizeof(PyFrameObject));
+}
+
diff -up Python-3.2.2/Objects/listobject.c.add-debug-malloc-stats Python-3.2.2/Objects/listobject.c
--- Python-3.2.2/Objects/listobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/listobject.c	2011-09-16 18:57:24.983825060 -0400
@@ -109,6 +109,15 @@ PyList_Fini(void)
     }
 }
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyList_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PyListObject",
+                           numfree, sizeof(PyListObject));
+}
+
 PyObject *
 PyList_New(Py_ssize_t size)
 {
diff -up Python-3.2.2/Objects/methodobject.c.add-debug-malloc-stats Python-3.2.2/Objects/methodobject.c
--- Python-3.2.2/Objects/methodobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/methodobject.c	2011-09-16 18:57:24.983825060 -0400
@@ -303,6 +303,15 @@ PyCFunction_Fini(void)
     (void)PyCFunction_ClearFreeList();
 }
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyCFunction_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PyCFunction",
+                           numfree, sizeof(PyCFunction));
+}
+
 /* PyCFunction_New() is now just a macro that calls PyCFunction_NewEx(),
    but it's part of the API so we need to keep a function around that
    existing C extensions can call.
diff -up Python-3.2.2/Objects/object.c.add-debug-malloc-stats Python-3.2.2/Objects/object.c
--- Python-3.2.2/Objects/object.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/object.c	2011-09-16 19:04:20.351821098 -0400
@@ -1781,6 +1781,19 @@ PyMem_Free(void *p)
     PyMem_FREE(p);
 }
 
+void
+_PyObject_DebugTypeStats(FILE *out)
+{
+    _PyCFunction_DebugMallocStats(out);
+    _PyDict_DebugMallocStats(out);
+    _PyFloat_DebugMallocStats(out);
+    _PyFrame_DebugMallocStats(out);
+    _PyList_DebugMallocStats(out);
+    _PyMethod_DebugMallocStats(out);
+    _PySet_DebugMallocStats(out);
+    _PyTuple_DebugMallocStats(out);
+    _PyUnicode_DebugMallocStats(out);
+}
 
 /* These methods are used to control infinite recursion in repr, str, print,
    etc.  Container objects that may recursively contain themselves,
diff -up Python-3.2.2/Objects/obmalloc.c.add-debug-malloc-stats Python-3.2.2/Objects/obmalloc.c
--- Python-3.2.2/Objects/obmalloc.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/obmalloc.c	2011-09-16 18:57:24.985825060 -0400
@@ -508,12 +508,10 @@ static struct arena_object* usable_arena
 /* Number of arenas allocated that haven't been free()'d. */
 static size_t narenas_currently_allocated = 0;
 
-#ifdef PYMALLOC_DEBUG
 /* Total number of times malloc() called to allocate an arena. */
 static size_t ntimes_arena_allocated = 0;
 /* High water mark (max value ever seen) for narenas_currently_allocated. */
 static size_t narenas_highwater = 0;
-#endif
 
 /* Allocate a new arena.  If we run out of memory, return NULL.  Else
  * allocate a new arena, and return the address of an arena_object
@@ -528,7 +526,7 @@ new_arena(void)
 
 #ifdef PYMALLOC_DEBUG
     if (Py_GETENV("PYTHONMALLOCSTATS"))
-        _PyObject_DebugMallocStats();
+        _PyObject_DebugMallocStats(stderr);
 #endif
     if (unused_arena_objects == NULL) {
         uint i;
@@ -588,11 +586,9 @@ new_arena(void)
     }
 
     ++narenas_currently_allocated;
-#ifdef PYMALLOC_DEBUG
     ++ntimes_arena_allocated;
     if (narenas_currently_allocated > narenas_highwater)
         narenas_highwater = narenas_currently_allocated;
-#endif
     arenaobj->freepools = NULL;
     /* pool_address <- first pool-aligned address in the arena
        nfreepools <- number of whole pools that fit after alignment */
@@ -1694,17 +1690,19 @@ _PyObject_DebugDumpAddress(const void *p
     }
 }
 
+#endif  /* PYMALLOC_DEBUG */
+
 static size_t
-printone(const char* msg, size_t value)
+printone(FILE *out, const char* msg, size_t value)
 {
     int i, k;
     char buf[100];
     size_t origvalue = value;
 
-    fputs(msg, stderr);
+    fputs(msg, out);
     for (i = (int)strlen(msg); i < 35; ++i)
-        fputc(' ', stderr);
-    fputc('=', stderr);
+        fputc(' ', out);
+    fputc('=', out);
 
     /* Write the value with commas. */
     i = 22;
@@ -1725,17 +1723,32 @@ printone(const char* msg, size_t value)
 
     while (i >= 0)
         buf[i--] = ' ';
-    fputs(buf, stderr);
+    fputs(buf, out);
 
     return origvalue;
 }
 
-/* Print summary info to stderr about the state of pymalloc's structures.
+void
+_PyDebugAllocatorStats(FILE *out,
+                       const char *block_name, int num_blocks, size_t sizeof_block)
+{
+       char buf1[128];
+       char buf2[128];
+       PyOS_snprintf(buf1, sizeof(buf1),
+                     "%d %ss * %zd bytes each",
+                     num_blocks, block_name, sizeof_block);
+       PyOS_snprintf(buf2, sizeof(buf2),
+                     "%48s ", buf1);
+      (void)printone(out, buf2, num_blocks * sizeof_block);
+}
+
+
+/* Print summary info to "out" about the state of pymalloc's structures.
  * In Py_DEBUG mode, also perform some expensive internal consistency
  * checks.
  */
 void
-_PyObject_DebugMallocStats(void)
+_PyObject_DebugMallocStats(FILE *out)
 {
     uint i;
     const uint numclasses = SMALL_REQUEST_THRESHOLD >> ALIGNMENT_SHIFT;
@@ -1764,7 +1777,7 @@ _PyObject_DebugMallocStats(void)
     size_t total;
     char buf[128];
 
-    fprintf(stderr, "Small block threshold = %d, in %u size classes.\n",
+    fprintf(out, "Small block threshold = %d, in %u size classes.\n",
             SMALL_REQUEST_THRESHOLD, numclasses);
 
     for (i = 0; i < numclasses; ++i)
@@ -1820,10 +1833,10 @@ _PyObject_DebugMallocStats(void)
     }
     assert(narenas == narenas_currently_allocated);
 
-    fputc('\n', stderr);
+    fputc('\n', out);
     fputs("class   size   num pools   blocks in use  avail blocks\n"
           "-----   ----   ---------   -------------  ------------\n",
-          stderr);
+          out);
 
     for (i = 0; i < numclasses; ++i) {
         size_t p = numpools[i];
@@ -1834,7 +1847,7 @@ _PyObject_DebugMallocStats(void)
             assert(b == 0 && f == 0);
             continue;
         }
-        fprintf(stderr, "%5u %6u "
+        fprintf(out, "%5u %6u "
                         "%11" PY_FORMAT_SIZE_T "u "
                         "%15" PY_FORMAT_SIZE_T "u "
                         "%13" PY_FORMAT_SIZE_T "u\n",
@@ -1844,36 +1857,35 @@ _PyObject_DebugMallocStats(void)
         pool_header_bytes += p * POOL_OVERHEAD;
         quantization += p * ((POOL_SIZE - POOL_OVERHEAD) % size);
     }
-    fputc('\n', stderr);
-    (void)printone("# times object malloc called", serialno);
-
-    (void)printone("# arenas allocated total", ntimes_arena_allocated);
-    (void)printone("# arenas reclaimed", ntimes_arena_allocated - narenas);
-    (void)printone("# arenas highwater mark", narenas_highwater);
-    (void)printone("# arenas allocated current", narenas);
+    fputc('\n', out);
+#ifdef PYMALLOC_DEBUG
+    (void)printone(out, "# times object malloc called", serialno);
+#endif
+    (void)printone(out, "# arenas allocated total", ntimes_arena_allocated);
+    (void)printone(out, "# arenas reclaimed", ntimes_arena_allocated - narenas);
+    (void)printone(out, "# arenas highwater mark", narenas_highwater);
+    (void)printone(out, "# arenas allocated current", narenas);
 
     PyOS_snprintf(buf, sizeof(buf),
         "%" PY_FORMAT_SIZE_T "u arenas * %d bytes/arena",
         narenas, ARENA_SIZE);
-    (void)printone(buf, narenas * ARENA_SIZE);
+    (void)printone(out, buf, narenas * ARENA_SIZE);
 
-    fputc('\n', stderr);
+    fputc('\n', out);
 
-    total = printone("# bytes in allocated blocks", allocated_bytes);
-    total += printone("# bytes in available blocks", available_bytes);
+    total = printone(out, "# bytes in allocated blocks", allocated_bytes);
+    total += printone(out, "# bytes in available blocks", available_bytes);
 
     PyOS_snprintf(buf, sizeof(buf),
         "%u unused pools * %d bytes", numfreepools, POOL_SIZE);
-    total += printone(buf, (size_t)numfreepools * POOL_SIZE);
+    total += printone(out, buf, (size_t)numfreepools * POOL_SIZE);
 
-    total += printone("# bytes lost to pool headers", pool_header_bytes);
-    total += printone("# bytes lost to quantization", quantization);
-    total += printone("# bytes lost to arena alignment", arena_alignment);
-    (void)printone("Total", total);
+    total += printone(out, "# bytes lost to pool headers", pool_header_bytes);
+    total += printone(out, "# bytes lost to quantization", quantization);
+    total += printone(out, "# bytes lost to arena alignment", arena_alignment);
+    (void)printone(out, "Total", total);
 }
 
-#endif  /* PYMALLOC_DEBUG */
-
 #ifdef Py_USING_MEMORY_DEBUGGER
 /* Make this function last so gcc won't inline it since the definition is
  * after the reference.
diff -up Python-3.2.2/Objects/setobject.c.add-debug-malloc-stats Python-3.2.2/Objects/setobject.c
--- Python-3.2.2/Objects/setobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/setobject.c	2011-09-16 18:57:24.986825060 -0400
@@ -1090,6 +1090,16 @@ PySet_Fini(void)
     Py_CLEAR(emptyfrozenset);
 }
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PySet_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out,
+                           "free PySetObject",
+                           numfree, sizeof(PySetObject));
+}
+
+
 static PyObject *
 set_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 {
diff -up Python-3.2.2/Objects/tupleobject.c.add-debug-malloc-stats Python-3.2.2/Objects/tupleobject.c
--- Python-3.2.2/Objects/tupleobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/tupleobject.c	2011-09-16 18:57:24.987825060 -0400
@@ -44,6 +44,22 @@ show_track(void)
 }
 #endif
 
+/* Print summary info about the state of the optimized allocator */
+void
+_PyTuple_DebugMallocStats(FILE *out)
+{
+#if PyTuple_MAXSAVESIZE > 0
+    int i;
+    char buf[128];
+    for (i = 1; i < PyTuple_MAXSAVESIZE; i++) {
+        PyOS_snprintf(buf, sizeof(buf),
+                      "free %d-sized PyTupleObject", i);
+        _PyDebugAllocatorStats(out,
+                               buf,
+                               numfree[i], _PyObject_VAR_SIZE(&PyTuple_Type, i));
+    }
+#endif
+}
 
 PyObject *
 PyTuple_New(register Py_ssize_t size)
diff -up Python-3.2.2/Objects/unicodeobject.c.add-debug-malloc-stats Python-3.2.2/Objects/unicodeobject.c
--- Python-3.2.2/Objects/unicodeobject.c.add-debug-malloc-stats	2011-09-03 12:16:47.000000000 -0400
+++ Python-3.2.2/Objects/unicodeobject.c	2011-09-16 18:57:24.990825060 -0400
@@ -10063,6 +10063,12 @@ _PyUnicode_Fini(void)
     (void)PyUnicode_ClearFreeList();
 }
 
+void _PyUnicode_DebugMallocStats(FILE *out)
+{
+    _PyDebugAllocatorStats(out, "free PyUnicodeObject", numfree,
+                           sizeof(PyUnicodeObject));
+}
+
 void
 PyUnicode_InternInPlace(PyObject **p)
 {
diff -up Python-3.2.2/Python/pythonrun.c.add-debug-malloc-stats Python-3.2.2/Python/pythonrun.c
--- Python-3.2.2/Python/pythonrun.c.add-debug-malloc-stats	2011-09-16 19:24:44.747809422 -0400
+++ Python-3.2.2/Python/pythonrun.c	2011-09-16 19:25:00.024809277 -0400
@@ -547,7 +547,7 @@ Py_Finalize(void)
 #endif /* Py_TRACE_REFS */
 #ifdef PYMALLOC_DEBUG
     if (Py_GETENV("PYTHONMALLOCSTATS"))
-        _PyObject_DebugMallocStats();
+        _PyObject_DebugMallocStats(stderr);
 #endif
 
     call_ll_exitfuncs();
diff -up Python-3.2.2/Python/sysmodule.c.add-debug-malloc-stats Python-3.2.2/Python/sysmodule.c
--- Python-3.2.2/Python/sysmodule.c.add-debug-malloc-stats	2011-09-03 12:16:49.000000000 -0400
+++ Python-3.2.2/Python/sysmodule.c	2011-09-16 19:18:45.806812845 -0400
@@ -994,6 +994,25 @@ a 11-tuple where the entries in the tupl
 extern "C" {
 #endif
 
+static PyObject *
+sys_debugmallocstats(PyObject *self, PyObject *args)
+{
+    _PyObject_DebugMallocStats(stderr);
+    fputc('\n', stderr);
+    _PyObject_DebugTypeStats(stderr);
+
+    Py_RETURN_NONE;
+}
+PyDoc_STRVAR(debugmallocstats_doc,
+"_debugmallocstats([file])\n\
+\n\
+Print summary info to stderr about the state of\n\
+pymalloc's structures.\n\
+\n\
+In Py_DEBUG mode, also perform some expensive internal consistency\n\
+checks.\n\
+");
+
 #ifdef Py_TRACE_REFS
 /* Defined in objects.c because it uses static globals if that file */
 extern PyObject *_Py_GetObjects(PyObject *, PyObject *);
@@ -1090,6 +1109,8 @@ static PyMethodDef sys_methods[] = {
     {"settrace",        sys_settrace, METH_O, settrace_doc},
     {"gettrace",        sys_gettrace, METH_NOARGS, gettrace_doc},
     {"call_tracing", sys_call_tracing, METH_VARARGS, call_tracing_doc},
+    {"_debugmallocstats", sys_debugmallocstats, METH_VARARGS,
+     debugmallocstats_doc},
     {NULL,              NULL}           /* sentinel */
 };