diff -r 4276bf56dd72 Tools/pybench/pybench.py
--- a/Tools/pybench/pybench.py	Sun Dec 21 21:27:25 2008 +0100
+++ b/Tools/pybench/pybench.py	Sun Dec 21 22:30:09 2008 +0100
@@ -917,7 +917,18 @@ python pybench.py -s p25.pybench -c p21.
         bench.load_tests(Setup, limitnames=limitnames)
         try:
             bench.calibrate()
+            try:
+                opstats = sys.getdxp()
+            except AttributeError:
+                opstats = None
+            else:
+                if isinstance(opstats[0], list):
+                    # Opcode pairs not supported
+                    opstats = None
             bench.run()
+            if opstats:
+                opstats = [new - old
+                    for new, old in zip(sys.getdxp(), opstats)]
         except KeyboardInterrupt:
             print()
             print('*** KeyboardInterrupt -- Aborting')
@@ -932,6 +943,26 @@ python pybench.py -s p25.pybench -c p21.
             bench.print_benchmark(hidenoise=hidenoise,
                                   limitnames=limitnames)
 
+        if opstats:
+            print('-' * LINE)
+            print('Opcode statistics')
+            print('-' * LINE)
+            print()
+
+            import opcode, pprint
+            opstats = {opcode.opname[op]: n
+                for op, n in enumerate(opstats) if n > 0}
+            maxops = max(opstats.values())
+            totalops = sum(opstats.values())
+            for op, n in sorted(opstats.items(), key=operator.itemgetter(1),
+                reverse=True):
+                line = (
+                    ' ' + (op + ' ').ljust(22, '.') + ' ' +
+                    ('%d (%d%%)' % (n, 100 * n // totalops)).ljust(17) +
+                    ' ' + '+' * (34 * n // maxops))
+                print(line)
+            print()
+
         # Ring bell
         sys.stderr.write('\007')
 
@@ -948,6 +979,6 @@ python pybench.py -s p25.pybench -c p21.
                     reportfile,
                     reason))
                 print()
-
+        
 if __name__ == '__main__':
     PyBenchCmdline()