diff -r 1cbd3d9f7d61 Include/pystate.h
--- a/Include/pystate.h	Tue Oct 08 23:04:32 2013 +0200
+++ b/Include/pystate.h	Tue Oct 08 23:26:24 2013 +0200
@@ -100,16 +100,6 @@ typedef struct _ts {
 
     PyObject *dict;  /* Stores per-thread state */
 
-    /* XXX doesn't mean anything anymore (the comment below is obsolete)
-       => deprecate or remove? */
-    /* tick_counter is incremented whenever the check_interval ticker
-     * reaches zero. The purpose is to give a useful measure of the number
-     * of interpreted bytecode instructions in a given thread.  This
-     * extremely lightweight statistic collector may be of interest to
-     * profilers (like psyco.jit()), although nothing in the core uses it.
-     */
-    int tick_counter;
-
     int gilstate_counter;
 
     PyObject *async_exc; /* Asynchronous exception to raise */
diff -r 1cbd3d9f7d61 Python/ceval.c
--- a/Python/ceval.c	Tue Oct 08 23:04:32 2013 +0200
+++ b/Python/ceval.c	Tue Oct 08 23:26:24 2013 +0200
@@ -1247,7 +1247,6 @@ PyEval_EvalFrameEx(PyFrameObject *f, int
                    a try: finally: block uninterruptible. */
                 goto fast_next_opcode;
             }
-            tstate->tick_counter++;
 #ifdef WITH_TSC
             ticked = 1;
 #endif
diff -r 1cbd3d9f7d61 Python/pystate.c
--- a/Python/pystate.c	Tue Oct 08 23:04:32 2013 +0200
+++ b/Python/pystate.c	Tue Oct 08 23:26:24 2013 +0200
@@ -182,7 +182,6 @@ new_threadstate(PyInterpreterState *inte
         tstate->recursion_critical = 0;
         tstate->tracing = 0;
         tstate->use_tracing = 0;
-        tstate->tick_counter = 0;
         tstate->gilstate_counter = 0;
         tstate->async_exc = NULL;
 #ifdef WITH_THREAD