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python2/00147-add-debug-malloc-stats.patch

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diff --git a/Include/dictobject.h b/Include/dictobject.h
index 5a1e9fe..da89cec 100644
--- a/Include/dictobject.h
+++ b/Include/dictobject.h
@@ -154,6 +154,8 @@ PyAPI_FUNC(PyObject *) PyDict_GetItemString(PyObject *dp, const char *key);
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 --git a/Include/floatobject.h b/Include/floatobject.h
index 54e8825..33c6ac0 100644
--- a/Include/floatobject.h
+++ b/Include/floatobject.h
@@ -132,6 +132,7 @@ PyAPI_FUNC(PyObject *) _PyFloat_FormatAdvanced(PyObject *obj,
failure. Used in builtin_round in bltinmodule.c. */
PyAPI_FUNC(PyObject *) _Py_double_round(double x, int ndigits);
+PyAPI_FUNC(void) _PyFloat_DebugMallocStats(FILE* out);
#ifdef __cplusplus
diff --git a/Include/frameobject.h b/Include/frameobject.h
index 3460379..db89a4a 100644
--- a/Include/frameobject.h
+++ b/Include/frameobject.h
@@ -80,6 +80,8 @@ PyAPI_FUNC(void) PyFrame_FastToLocals(PyFrameObject *);
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 --git a/Include/intobject.h b/Include/intobject.h
index d198574..60cb9e0 100644
--- a/Include/intobject.h
+++ b/Include/intobject.h
@@ -78,6 +78,8 @@ PyAPI_FUNC(PyObject *) _PyInt_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
+PyAPI_FUNC(void) _PyInt_DebugMallocStats(FILE *out);
+
#ifdef __cplusplus
}
#endif
diff --git a/Include/listobject.h b/Include/listobject.h
index f19b1c5..7fccb47 100644
--- a/Include/listobject.h
+++ b/Include/listobject.h
@@ -62,6 +62,8 @@ PyAPI_FUNC(PyObject *) _PyList_Extend(PyListObject *, PyObject *);
#define PyList_SET_ITEM(op, i, v) (((PyListObject *)(op))->ob_item[i] = (v))
#define PyList_GET_SIZE(op) Py_SIZE(op)
+PyAPI_FUNC(void) _PyList_DebugMallocStats(FILE *out);
+
#ifdef __cplusplus
}
#endif
diff --git a/Include/methodobject.h b/Include/methodobject.h
index 6e160b6..1944517 100644
--- a/Include/methodobject.h
+++ b/Include/methodobject.h
@@ -87,6 +87,10 @@ 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 --git a/Include/object.h b/Include/object.h
index 807b241..a9d2079 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -1040,6 +1040,13 @@ PyAPI_FUNC(void) _PyTrash_thread_destroy_chain(void);
_PyTrash_thread_deposit_object((PyObject*)op); \
} while (0);
+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 --git a/Include/objimpl.h b/Include/objimpl.h
index cbf6bc3..8c14ab8 100644
--- a/Include/objimpl.h
+++ b/Include/objimpl.h
@@ -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 --git a/Include/setobject.h b/Include/setobject.h
index 52b07d5..73a37b6 100644
--- a/Include/setobject.h
+++ b/Include/setobject.h
@@ -92,6 +92,7 @@ PyAPI_FUNC(int) _PySet_Next(PyObject *set, Py_ssize_t *pos, PyObject **key);
PyAPI_FUNC(int) _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, long *hash);
PyAPI_FUNC(PyObject *) PySet_Pop(PyObject *set);
PyAPI_FUNC(int) _PySet_Update(PyObject *set, PyObject *iterable);
+PyAPI_FUNC(void) _PySet_DebugMallocStats(FILE *out);
#ifdef __cplusplus
}
diff --git a/Include/stringobject.h b/Include/stringobject.h
index 12cc093..0a5fbd1 100644
--- a/Include/stringobject.h
+++ b/Include/stringobject.h
@@ -204,6 +204,8 @@ PyAPI_FUNC(PyObject *) _PyBytes_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
+PyAPI_FUNC(void) _PyString_DebugMallocStats(FILE *out);
+
#ifdef __cplusplus
}
#endif
diff --git a/Include/tupleobject.h b/Include/tupleobject.h
index a5ab733..27e6ca6 100644
--- a/Include/tupleobject.h
+++ b/Include/tupleobject.h
@@ -54,6 +54,7 @@ PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
+PyAPI_FUNC(void) _PyTuple_DebugMallocStats(FILE *out);
#ifdef __cplusplus
}
diff --git a/Include/unicodeobject.h b/Include/unicodeobject.h
index 7781f96..321bd20 100644
--- a/Include/unicodeobject.h
+++ b/Include/unicodeobject.h
@@ -1406,6 +1406,8 @@ PyAPI_FUNC(int) _PyUnicode_IsAlpha(
Py_UNICODE ch /* Unicode character */
);
+PyAPI_FUNC(void) _PyUnicode_DebugMallocStats(FILE *out);
+
#ifdef __cplusplus
}
#endif
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 9342716..8eeb5ab 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -487,6 +487,32 @@ class SysModuleTest(unittest.TestCase):
p.wait()
self.assertIn(executable, ["''", repr(sys.executable)])
+ def test_debugmallocstats(self):
+ # Test sys._debugmallocstats()
+
+ import subprocess
+
+ # Verify the default of writing to stderr:
+ p = subprocess.Popen([sys.executable,
+ '-c', 'import sys; sys._debugmallocstats()'],
+ stderr=subprocess.PIPE)
+ out, err = p.communicate()
+ p.wait()
+ self.assertIn("arenas allocated current", err)
+
+ # Verify that we can redirect the output to a file (not a file-like
+ # object, though):
+ with open('mallocstats.txt', 'w') as out:
+ sys._debugmallocstats(out)
+ result = open('mallocstats.txt').read()
+ self.assertIn("arenas allocated current", result)
+ os.unlink('mallocstats.txt')
+
+ # Verify that the destination must be a file:
+ with self.assertRaises(TypeError):
+ sys._debugmallocstats(42)
+
+
@test.test_support.cpython_only
class SizeofTest(unittest.TestCase):
diff --git a/Objects/classobject.c b/Objects/classobject.c
index 02d7cfd..1c44a47 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -2691,3 +2691,12 @@ 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));
+}
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index c544ecd..89ca39c 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -225,6 +225,15 @@ 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 --git a/Objects/floatobject.c b/Objects/floatobject.c
index 5954d39..02acc8c 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -34,6 +34,22 @@ 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 --git a/Objects/frameobject.c b/Objects/frameobject.c
index 4c91dd0..03a66dc 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -1019,3 +1019,13 @@ 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 --git a/Objects/intobject.c b/Objects/intobject.c
index 9b27c35..703fa5a 100644
--- a/Objects/intobject.c
+++ b/Objects/intobject.c
@@ -44,6 +44,23 @@ typedef struct _intblock PyIntBlock;
static PyIntBlock *block_list = NULL;
static PyIntObject *free_list = NULL;
+
+/* Print summary info about the state of the optimized allocator */
+void
+_PyInt_DebugMallocStats(FILE *out)
+{
+ int num_blocks = 0;
+ PyIntBlock *block;
+
+ /* Walk the block list, counting */
+ for (block = block_list; block ; block = block->next) {
+ num_blocks++;
+ }
+
+ _PyDebugAllocatorStats(out,
+ "PyIntBlock", num_blocks, sizeof(PyIntBlock));
+}
+
static PyIntObject *
fill_free_list(void)
{
diff --git a/Objects/listobject.c b/Objects/listobject.c
index 24eff76..38848bd 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -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 --git a/Objects/methodobject.c b/Objects/methodobject.c
index c1a99ab..ea5df77 100644
--- a/Objects/methodobject.c
+++ b/Objects/methodobject.c
@@ -412,6 +412,15 @@ 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 --git a/Objects/object.c b/Objects/object.c
index 65366b0..acef3ce 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -2360,6 +2360,23 @@ PyMem_Free(void *p)
PyMem_FREE(p);
}
+void
+_PyObject_DebugTypeStats(FILE *out)
+{
+ _PyString_DebugMallocStats(out);
+ _PyCFunction_DebugMallocStats(out);
+ _PyDict_DebugMallocStats(out);
+ _PyFloat_DebugMallocStats(out);
+ _PyFrame_DebugMallocStats(out);
+ _PyInt_DebugMallocStats(out);
+ _PyList_DebugMallocStats(out);
+ _PyMethod_DebugMallocStats(out);
+ _PySet_DebugMallocStats(out);
+ _PyTuple_DebugMallocStats(out);
+#if Py_USING_UNICODE
+ _PyUnicode_DebugMallocStats(out);
+#endif
+}
/* These methods are used to control infinite recursion in repr, str, print,
etc. Container objects that may recursively contain themselves,
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
index 0778c85..f049f5c 100644
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -541,12 +541,10 @@ static struct arena_object* usable_arenas = NULL;
/* 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
@@ -563,7 +561,7 @@ new_arena(void)
#ifdef PYMALLOC_DEBUG
if (Py_GETENV("PYTHONMALLOCSTATS"))
- _PyObject_DebugMallocStats();
+ _PyObject_DebugMallocStats(stderr);
#endif
if (unused_arena_objects == NULL) {
uint i;
@@ -631,11 +629,9 @@ new_arena(void)
arenaobj->address = (uptr)address;
++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 */
@@ -1796,17 +1792,19 @@ _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;
@@ -1827,17 +1825,32 @@ 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;
@@ -1866,7 +1879,7 @@ _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)
@@ -1920,10 +1933,10 @@ _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];
@@ -1934,7 +1947,7 @@ _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",
@@ -1944,36 +1957,35 @@ _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 --git a/Objects/setobject.c b/Objects/setobject.c
index 31da3db..da086ab 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -1087,6 +1087,16 @@ 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 --git a/Objects/stringobject.c b/Objects/stringobject.c
index c47d32f..b1ffa24 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -4880,3 +4880,43 @@ void _Py_ReleaseInternedStrings(void)
PyDict_Clear(interned);
Py_CLEAR(interned);
}
+
+void _PyString_DebugMallocStats(FILE *out)
+{
+ ssize_t i;
+ int num_immortal = 0, num_mortal = 0;
+ ssize_t immortal_size = 0, mortal_size = 0;
+
+ if (interned == NULL || !PyDict_Check(interned))
+ return;
+
+ for (i = 0; i <= ((PyDictObject*)interned)->ma_mask; i++) {
+ PyDictEntry *ep = ((PyDictObject*)interned)->ma_table + i;
+ PyObject *pvalue = ep->me_value;
+ if (pvalue != NULL) {
+ PyStringObject *s = (PyStringObject *)ep->me_key;
+
+ switch (s->ob_sstate) {
+ case SSTATE_NOT_INTERNED:
+ /* XXX Shouldn't happen */
+ break;
+ case SSTATE_INTERNED_IMMORTAL:
+ num_immortal ++;
+ immortal_size += s->ob_size;
+ break;
+ case SSTATE_INTERNED_MORTAL:
+ num_mortal ++;
+ mortal_size += s->ob_size;
+ break;
+ default:
+ Py_FatalError("Inconsistent interned string state.");
+ }
+ }
+ }
+
+ fprintf(out, "%d mortal interned strings\n", num_mortal);
+ fprintf(out, "%d immortal interned strings\n", num_immortal);
+ fprintf(out, "total size of all interned strings: "
+ "%zi/%zi "
+ "mortal/immortal\n", mortal_size, immortal_size);
+}
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index 6f4b18c..e8e4490 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -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 --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index a859fa0..b6ff83e 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -9018,6 +9018,12 @@ _PyUnicode_Fini(void)
(void)PyUnicode_ClearFreeList();
}
+void _PyUnicode_DebugMallocStats(FILE *out)
+{
+ _PyDebugAllocatorStats(out, "free PyUnicodeObject", numfree,
+ sizeof(PyUnicodeObject));
+}
+
#ifdef __cplusplus
}
#endif
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index b686317..c3b3e17 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -605,7 +605,7 @@ Py_Finalize(void)
#endif /* Py_TRACE_REFS */
#ifdef PYMALLOC_DEBUG
if (Py_GETENV("PYTHONMALLOCSTATS"))
- _PyObject_DebugMallocStats();
+ _PyObject_DebugMallocStats(stderr);
#endif
call_ll_exitfuncs();
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 22238ba..60624f2 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -890,6 +890,57 @@ a 11-tuple where the entries in the tuple are counts of:\n\
extern "C" {
#endif
+static PyObject *
+sys_debugmallocstats(PyObject *self, PyObject *args)
+{
+ PyObject *file = NULL;
+ FILE *fp;
+
+ if (!PyArg_ParseTuple(args, "|O!",
+ &PyFile_Type, &file)) {
+ return NULL;
+ }
+ if (!file) {
+ /* Default to sys.stderr: */
+ file = PySys_GetObject("stderr");
+ if (!file) {
+ PyErr_SetString(PyExc_ValueError, "sys.stderr not set");
+ return NULL;
+ }
+ if (!PyFile_Check(file)) {
+ PyErr_SetString(PyExc_TypeError, "sys.stderr is not a file");
+ return NULL;
+ }
+ }
+
+ Py_INCREF(file);
+ /* OK, we now own a ref on non-NULL "file" */
+
+ fp = PyFile_AsFile(file);
+ if (!fp) {
+ PyErr_SetString(PyExc_ValueError, "file is closed");
+ Py_DECREF(file);
+ return NULL;
+ }
+
+ _PyObject_DebugMallocStats(fp);
+ fputc('\n', fp);
+ _PyObject_DebugTypeStats(fp);
+
+ Py_DECREF(file);
+
+ Py_RETURN_NONE;
+}
+PyDoc_STRVAR(debugmallocstats_doc,
+"_debugmallocstats([file])\n\
+\n\
+Print summary info to the given file (or sys.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 *);
@@ -988,6 +1039,8 @@ 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 */
};
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