diff -r 10df991a6ac9 -r 6e1f6c9cd4ac src/python/m5/stats/display.py
--- a/src/python/m5/stats/display.py	Tue Jan 29 10:24:04 2013 +0000
+++ b/src/python/m5/stats/display.py	Tue Jan 29 10:28:27 2013 +0000
@@ -216,6 +216,67 @@
             p.value = mytotal
             p.display(out)
 
+## @brief Class to display a vector forula
+class VectorFormulaDisplay(DisplayBase):
+    ## @brief Display the value if it is non zero
+    # @param out The output to which we want to print.
+    def display(self, out):
+        if not self.value:
+            return
+
+        p = Display(self)
+        p.flags = self.flags
+        p.precision = self.precision
+
+        # If the value is not a list or a tuple, just print the value.
+        if not isinstance(self.value, (list, tuple)):
+            p.name = self.name
+            p.desc = self.desc
+            p.value = self.value
+            p.display(out)
+            return
+
+        mytotal = self.total
+        mycdf = 0.0
+
+        value = self.value
+        if any(self.subnames):
+            subnames = [''] * len(value)
+            for i,subname in enumerate(self.subnames):
+                if subname:
+                    subnames[i] = '::%s' % subname
+        else:
+            subnames = [ '::%d' % i for i in range(len(value)) ]
+
+        subdescs = [self.desc] * len(value)
+        if self.subdescs:
+            for i in xrange(min(len(value), len(self.subdescs))):
+                if self.subdescs[i]:
+                    subdescs[i] = self.subdescs[i]
+
+        for val,sname,sdesc in map(None, value, subnames, subdescs):
+            if mytotal > 0.0:
+                mypdf = float(val) / float(mytotal)
+                mycdf += mypdf
+                if (self.flags & flags.pdf):
+                    p.pdf = mypdf
+                    p.cdf = mycdf
+
+            if not sname:
+                continue
+
+            p.name = self.name + sname
+            p.desc = sdesc
+            p.value = val
+            p.display(out)
+
+        if self.flags & flags.total:
+            p.reset()
+            p.name = self.name + '::total'
+            p.desc = self.desc
+            p.value = mytotal
+            p.display(out)
+
 ## @brief Display a distribution. Begin by printing the number of samples, the
 # mean and  the standard deviation. This is followed by printing the
 # distribution itself.
@@ -332,7 +393,13 @@
     if scalar(stat):
         display_scalar(stat, out)
     elif vector(stat):
-        display_vector(stat, out)
+        if len(stat) == 1:
+            p = Display(stat)
+            p.value = value(stat, 0)
+        else:
+            p = VectorFormulaDisplay(stat)
+            p.value = [ value(stat, i) for i in xrange(len(stat)) ]
+        p.display(out)
 
 @register_display(Dist)
 ## @brief Function to display a distribution.