diff --git a/Tools/pybench/Arithmetic.py b/Tools/pybench/Arithmetic.py
index 229396cfde1..4ed62194071 100644
--- a/Tools/pybench/Arithmetic.py
+++ b/Tools/pybench/Arithmetic.py
@@ -4,7 +4,7 @@ class SimpleIntegerArithmetic(Test):
 
     version = 0.3
     operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
-    rounds = 1200*21
+    rounds = 120000
 
     def test(self):
 
@@ -159,7 +159,7 @@ class SimpleFloatArithmetic(Test):
 
     version = 0.3
     operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
-    rounds = 1000*30
+    rounds = 100000
 
     def test(self):
 
@@ -314,7 +314,7 @@ class SimpleIntFloatArithmetic(Test):
 
     version = 0.3
     operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
-    rounds = 1200*30
+    rounds = 120000
 
     def test(self):
 
@@ -470,7 +470,7 @@ class SimpleLongArithmetic(Test):
 
     version = 0.3
     operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
-    rounds = 300*32
+    rounds = 30000
 
     def test(self):
 
@@ -625,7 +625,7 @@ class SimpleComplexArithmetic(Test):
 
     version = 0.3
     operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
-    rounds = 400*27
+    rounds = 40000
 
     def test(self):
 
diff --git a/Tools/pybench/Calls.py b/Tools/pybench/Calls.py
index a94887b4d26..e2952438d5a 100644
--- a/Tools/pybench/Calls.py
+++ b/Tools/pybench/Calls.py
@@ -4,7 +4,7 @@ class PythonFunctionCalls(Test):
 
     version = 0.3
     operations = 5*(1+4+4+2)
-    rounds = 600*22
+    rounds = 60000
 
     def test(self):
 
@@ -113,7 +113,7 @@ class BuiltinFunctionCalls(Test):
 
     version = 0.4
     operations = 5*(2+5+5+5)
-    rounds = 300*24
+    rounds = 30000
 
     def test(self):
 
@@ -234,7 +234,7 @@ class PythonMethodCalls(Test):
 
     version = 0.3
     operations = 5*(6 + 5 + 4)
-    rounds = 200*27
+    rounds = 20000
 
     def test(self):
 
@@ -376,7 +376,7 @@ class Recursion(Test):
 
     version = 0.3
     operations = 5
-    rounds = 500*21
+    rounds = 50000
 
     def test(self):
 
diff --git a/Tools/pybench/Constructs.py b/Tools/pybench/Constructs.py
index f7ebe73d843..00045bd73e3 100644
--- a/Tools/pybench/Constructs.py
+++ b/Tools/pybench/Constructs.py
@@ -4,7 +4,7 @@ class IfThenElse(Test):
 
     version = 0.31
     operations = 30*3 # hard to say...
-    rounds = 1500*27
+    rounds = 150000
 
     def test(self):
 
@@ -471,7 +471,7 @@ class NestedForLoops(Test):
 
     version = 0.3
     operations = 1000*10*5
-    rounds = 100
+    rounds = 150
 
     def test(self):
 
@@ -496,7 +496,7 @@ class ForLoops(Test):
 
     version = 0.1
     operations = 5 * 5
-    rounds = 80*25
+    rounds = 8000
 
     def test(self):
 
diff --git a/Tools/pybench/Dict.py b/Tools/pybench/Dict.py
index d1b38339bdf..54aeae71683 100644
--- a/Tools/pybench/Dict.py
+++ b/Tools/pybench/Dict.py
@@ -4,7 +4,7 @@ class DictCreation(Test):
 
     version = 0.3
     operations = 5*(5 + 5)
-    rounds = 600*24
+    rounds = 60000
 
     def test(self):
 
@@ -79,7 +79,7 @@ class DictWithStringKeys(Test):
 
     version = 0.1
     operations = 5*(6 + 6)
-    rounds = 2000*30
+    rounds = 200000
 
     def test(self):
 
@@ -168,7 +168,7 @@ class DictWithFloatKeys(Test):
 
     version = 0.1
     operations = 5*(6 + 6)
-    rounds = 20000
+    rounds = 200000
 
     def test(self):
 
@@ -257,7 +257,7 @@ class DictWithIntegerKeys(Test):
 
     version = 0.1
     operations = 5*(6 + 6)
-    rounds = 2000*19
+    rounds = 200000
 
     def test(self):
 
@@ -346,7 +346,7 @@ class SimpleDictManipulation(Test):
 
     version = 0.3
     operations = 5*(6 + 6 + 6 + 6)
-    rounds = 500*44
+    rounds = 50000
 
     def test(self):
 
diff --git a/Tools/pybench/Empty.py b/Tools/pybench/Empty.py
deleted file mode 100755
index 9cb34ac3b07..00000000000
--- a/Tools/pybench/Empty.py
+++ /dev/null
@@ -1,22 +0,0 @@
-from pybench import Test
-
-class EmptyTest(Test):
-    """This is just here as a potential measure of repeatability."""
-
-    version = 0.3
-    operations = 1
-    rounds = 60000
-
-    def test(self):
-
-        l = []
-        for i in xrange(self.rounds):
-            pass
-
-
-    def calibrate(self):
-
-        l = []
-
-        for i in xrange(self.rounds):
-            pass
diff --git a/Tools/pybench/Exceptions.py b/Tools/pybench/Exceptions.py
index d6c89419118..7e55708dfef 100644
--- a/Tools/pybench/Exceptions.py
+++ b/Tools/pybench/Exceptions.py
@@ -4,7 +4,7 @@ class TryRaiseExcept(Test):
 
     version = 0.1
     operations = 2 + 3
-    rounds = 600*25
+    rounds = 60000
 
     def test(self):
 
@@ -44,7 +44,7 @@ class TryExcept(Test):
 
     version = 0.1
     operations = 15 * 10
-    rounds = 2000*16
+    rounds = 200000
 
     def test(self):
 
diff --git a/Tools/pybench/Imports.py b/Tools/pybench/Imports.py
index b953919c50c..85eb604af53 100644
--- a/Tools/pybench/Imports.py
+++ b/Tools/pybench/Imports.py
@@ -8,7 +8,7 @@ class SecondImport(Test):
 
     version = 0.1
     operations = 5 * 5
-    rounds = 2000*15
+    rounds = 20000
 
     def test(self):
 
@@ -53,7 +53,7 @@ class SecondPackageImport(Test):
 
     version = 0.1
     operations = 5 * 5
-    rounds = 200*20
+    rounds = 20000
 
     def test(self):
 
@@ -97,7 +97,7 @@ class SecondSubmoduleImport(Test):
 
     version = 0.1
     operations = 5 * 5
-    rounds = 200*17
+    rounds = 20000
 
     def test(self):
 
diff --git a/Tools/pybench/Instances.py b/Tools/pybench/Instances.py
index 199b129bb77..9b1929d16af 100644
--- a/Tools/pybench/Instances.py
+++ b/Tools/pybench/Instances.py
@@ -4,7 +4,7 @@ class CreateInstances(Test):
 
     version = 0.2
     operations = 3 + 7 + 4
-    rounds = 600*17
+    rounds = 60000
 
     def test(self):
 
diff --git a/Tools/pybench/Lists.py b/Tools/pybench/Lists.py
index 844612f1e9f..4c18e99a373 100644
--- a/Tools/pybench/Lists.py
+++ b/Tools/pybench/Lists.py
@@ -4,7 +4,7 @@ class SimpleListManipulation(Test):
 
     version = 0.3
     operations = 5* (6 + 6 + 6)
-    rounds = 600*45
+    rounds = 60000
 
     def test(self):
 
@@ -132,7 +132,7 @@ class ListSlicing(Test):
 
     version = 0.4
     operations = 25*(3+1+2+1)
-    rounds = 4*45
+    rounds = 400
 
     def test(self):
 
@@ -169,7 +169,7 @@ class SmallLists(Test):
 
     version = 0.3
     operations = 5*(1+ 6 + 6 + 3 + 1)
-    rounds = 600*15
+    rounds = 60000
 
     def test(self):
 
diff --git a/Tools/pybench/Lookups.py b/Tools/pybench/Lookups.py
index 47ad94ae545..e5529cd4786 100644
--- a/Tools/pybench/Lookups.py
+++ b/Tools/pybench/Lookups.py
@@ -4,7 +4,7 @@ class SpecialClassAttribute(Test):
 
     version = 0.3
     operations = 5*(12 + 12)
-    rounds = 1000*16
+    rounds = 100000
 
     def test(self):
 
@@ -185,7 +185,7 @@ class NormalClassAttribute(Test):
 
     version = 0.3
     operations = 5*(12 + 12)
-    rounds = 1000*20
+    rounds = 100000
 
     def test(self):
 
@@ -371,7 +371,7 @@ class SpecialInstanceAttribute(Test):
 
     version = 0.3
     operations = 5*(12 + 12)
-    rounds = 1000*14
+    rounds = 100000
 
     def test(self):
 
@@ -559,7 +559,7 @@ class NormalInstanceAttribute(Test):
 
     version = 0.3
     operations = 5*(12 + 12)
-    rounds = 1000*22
+    rounds = 100000
 
     def test(self):
 
@@ -747,7 +747,7 @@ class BuiltinMethodLookup(Test):
 
     version = 0.3
     operations = 5*(3*5 + 3*5)
-    rounds = 700*15
+    rounds = 70000
 
     def test(self):
 
diff --git a/Tools/pybench/NewInstances.py b/Tools/pybench/NewInstances.py
deleted file mode 100755
index a3526383483..00000000000
--- a/Tools/pybench/NewInstances.py
+++ /dev/null
@@ -1,66 +0,0 @@
-from pybench import Test
-
-class CreateNewInstances(Test):
-
-    version = 0.1
-    operations = 3 + 7 + 4
-    rounds = 60000
-
-    def test(self):
-
-        class c(object):
-            pass
-
-        class d(object):
-            def __init__(self,a,b,c):
-                self.a = a
-                self.b = b
-                self.c = c
-
-        class e(object):
-            def __init__(self,a,b,c=4):
-                self.a = a
-                self.b = b
-                self.c = c
-                self.d = a
-                self.e = b
-                self.f = c
-
-        for i in xrange(self.rounds):
-            o = c()
-            o1 = c()
-            o2 = c()
-            p = d(i,i,3)
-            p1 = d(i,i,3)
-            p2 = d(i,3,3)
-            p3 = d(3,i,3)
-            p4 = d(i,i,i)
-            p5 = d(3,i,3)
-            p6 = d(i,i,i)
-            q = e(i,i,3)
-            q1 = e(i,i,3)
-            q2 = e(i,i,3)
-            q3 = e(i,i)
-
-    def calibrate(self):
-
-        class c(object):
-            pass
-
-        class d(object):
-            def __init__(self,a,b,c):
-                self.a = a
-                self.b = b
-                self.c = c
-
-        class e(object):
-            def __init__(self,a,b,c=4):
-                self.a = a
-                self.b = b
-                self.c = c
-                self.d = a
-                self.e = b
-                self.f = c
-
-        for i in xrange(self.rounds):
-            pass
diff --git a/Tools/pybench/Numbers.py b/Tools/pybench/Numbers.py
index e89d00f05a5..a6aea3317af 100644
--- a/Tools/pybench/Numbers.py
+++ b/Tools/pybench/Numbers.py
@@ -4,7 +4,7 @@ class CompareIntegers(Test):
 
     version = 0.1
     operations = 30 * 5
-    rounds = 1200*21
+    rounds = 120000
 
     def test(self):
 
@@ -200,7 +200,7 @@ class CompareFloats(Test):
 
     version = 0.1
     operations = 30 * 5
-    rounds = 600*27
+    rounds = 60000
 
     def test(self):
 
@@ -396,7 +396,7 @@ class CompareFloatsIntegers(Test):
 
     version = 0.1
     operations = 30 * 5
-    rounds = 600*16
+    rounds = 60000
 
     def test(self):
 
@@ -592,7 +592,7 @@ class CompareLongs(Test):
 
     version = 0.1
     operations = 30 * 5
-    rounds = 600*24
+    rounds = 60000
 
     def test(self):
 
diff --git a/Tools/pybench/Setup.py b/Tools/pybench/Setup.py
index 1f2f45474fe..f5c519047e4 100644
--- a/Tools/pybench/Setup.py
+++ b/Tools/pybench/Setup.py
@@ -17,7 +17,6 @@ Number_of_rounds = 10
 Warp_factor = 20
 
 # Import tests
-#from Empty import *
 from Arithmetic import *
 from Calls import *
 from Constructs import *
diff --git a/Tools/pybench/Strings.py b/Tools/pybench/Strings.py
index 43309dabab6..b01843afaa5 100644
--- a/Tools/pybench/Strings.py
+++ b/Tools/pybench/Strings.py
@@ -5,7 +5,7 @@ class ConcatStrings(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 6000
+    rounds = 60000
 
     def test(self):
 
@@ -87,7 +87,7 @@ class CompareStrings(Test):
 
     version = 0.2
     operations = 10 * 5
-    rounds = 2000*22
+    rounds = 200000
 
     def test(self):
 
@@ -169,7 +169,7 @@ class CompareInternedStrings(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 2000*28
+    rounds = 200000
 
     def test(self):
 
@@ -251,7 +251,7 @@ class CreateStringsWithConcat(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 800*32
+    rounds = 80000
 
     def test(self):
 
@@ -326,7 +326,7 @@ class StringSlicing(Test):
 
     version = 0.1
     operations = 5 * 7
-    rounds = 1000*15
+    rounds = 100000
 
     def test(self):
 
@@ -389,7 +389,7 @@ if hasattr('', 'lower'):
 
         version = 0.1
         operations = 3 * (5 + 4 + 2 + 1)
-        rounds = 14000
+        rounds = 70000
 
         def test(self):
 
@@ -462,7 +462,7 @@ if hasattr('', 'lower'):
 
         version = 0.1
         operations = 10 * 7
-        rounds = 800*24
+        rounds = 80000
 
         def test(self):
 
diff --git a/Tools/pybench/Tuples.py b/Tools/pybench/Tuples.py
index 842fa3e2a92..e84ea53d1dc 100644
--- a/Tools/pybench/Tuples.py
+++ b/Tools/pybench/Tuples.py
@@ -4,7 +4,7 @@ class TupleSlicing(Test):
 
     version = 0.31
     operations = 3 * 25 * 10 * 7
-    rounds = 100
+    rounds = 400
 
     def test(self):
 
@@ -272,7 +272,7 @@ class SmallTuples(Test):
 
     version = 0.3
     operations = 5*(1 + 3 + 6 + 2)
-    rounds = 800*16
+    rounds = 80000
 
     def test(self):
 
diff --git a/Tools/pybench/Unicode.py b/Tools/pybench/Unicode.py
index 86839b5c69c..366f171bd90 100644
--- a/Tools/pybench/Unicode.py
+++ b/Tools/pybench/Unicode.py
@@ -10,7 +10,7 @@ class ConcatUnicode(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 600*7
+    rounds = 60000
 
     def test(self):
 
@@ -92,7 +92,7 @@ class CompareUnicode(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 1500*17
+    rounds = 150000
 
     def test(self):
 
@@ -174,7 +174,7 @@ class CreateUnicodeWithConcat(Test):
 
     version = 0.1
     operations = 10 * 5
-    rounds = 800*12
+    rounds = 80000
 
     def test(self):
 
@@ -249,7 +249,7 @@ class UnicodeSlicing(Test):
 
     version = 0.1
     operations = 5 * 7
-    rounds = 10000
+    rounds = 100000
 
     def test(self):
 
@@ -310,7 +310,7 @@ class UnicodeMappings(Test):
 
     version = 0.1
     operations = 3 * (5 + 4 + 2 + 1)
-    rounds = 100*15
+    rounds = 10000
 
     def test(self):
 
@@ -383,7 +383,7 @@ class UnicodePredicates(Test):
 
     version = 0.1
     operations = 5 * 9
-    rounds = 1000*25
+    rounds = 100000
 
     def test(self):
 
@@ -460,7 +460,7 @@ else:
 
         version = 0.1
         operations = 5 * 8
-        rounds = 1000*15
+        rounds = 100000
 
         def test(self):
 
diff --git a/Tools/pybench/pybench.py b/Tools/pybench/pybench.py
index 8df0025f2e6..f803dc43e01 100755
--- a/Tools/pybench/pybench.py
+++ b/Tools/pybench/pybench.py
@@ -35,7 +35,7 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE !
 """
 
 # Version number
-__version__ = '1.4'
+__version__ = '1.3'
 
 #
 # NOTE: Use xrange for all test loops unless you want to face