Index: ceval.c
===================================================================
--- ceval.c	(revision 53285)
+++ ceval.c	(working copy)
@@ -509,6 +509,21 @@
 	return PyEval_EvalFrameEx(f, 0);
 }
 
+#define FAST_TUPLE_ACCESS 1
+#define COUNT_ACCESS 1
+
+#if COUNT_ACCESS
+static int list_accessed = 0;
+static int tuple_accessed = 0;
+static int other_accessed = 0;
+static int atexit_registered = 0;
+
+static void final_output(void)
+{
+    printf("===> list: %d, tuple: %d, other: %d\n", list_accessed, tuple_accessed, other_accessed);
+}
+#endif
+
 PyObject *
 PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
 {
@@ -1173,6 +1188,12 @@
 			break;
 
 		case BINARY_SUBSCR:
+#if COUNT_ACCESS
+			if (!atexit_registered) {
+			    atexit_registered = 1;
+			    atexit(final_output);
+			}
+#endif
 			w = POP();
 			v = TOP();
 			if (PyList_CheckExact(v) && PyInt_CheckExact(w)) {
@@ -1186,10 +1207,33 @@
 				}
 				else
 					goto slow_get;
+#if COUNT_ACCESS
+				list_accessed++;
+#endif
 			}
+#if FAST_TUPLE_ACCESS
+			else if (PyTuple_CheckExact(v) && PyInt_CheckExact(w)) {
+				/* INLINE: tuple[int] */
+				Py_ssize_t i = PyInt_AsSsize_t(w);
+				if (i < 0)
+					i += PyTuple_GET_SIZE(v);
+				if (i >= 0 && i < PyTuple_GET_SIZE(v)) {
+					x = PyTuple_GET_ITEM(v, i);
+					Py_INCREF(x);
+				}
+				else
+					goto slow_get;
+#if COUNT_ACCESS
+				tuple_accessed++;
+#endif
+			}
+#endif
 			else
 			  slow_get:
 				x = PyObject_GetItem(v, w);
+#if COUNT_ACCESS
+				other_accessed++;
+#endif
 			Py_DECREF(v);
 			Py_DECREF(w);
 			SET_TOP(x);