diff -r f69f7b67823f -r bc23f2c316fc src/python/m5/stats/sql.py
--- a/src/python/m5/stats/sql.py	Tue Jan 15 18:37:43 2013 +0000
+++ b/src/python/m5/stats/sql.py	Tue Jan 15 18:38:42 2013 +0000
@@ -46,6 +46,7 @@
 
 from m5.util import fatal, panic
 from math import isnan
+import zlib
 
 
 # @brief Create the database used to store the stats. If it exists, we delete
@@ -245,10 +246,10 @@
         import array
         self.id = id
         self.dump = dump
-        a = array.array('f', value)
-        self.value = a.tostring()
-        a = array.array('f', total)
-        self.total = a.tostring()
+        a = array.array('d', value)
+        self.value = zlib.compress(a.tostring())
+        a = array.array('d', total)
+        self.total = zlib.compress(a.tostring())
 
     def __repr__(self):
         return "<User('%d','%d','%s','%s')>" % (self.id, self.dump, self.value,
@@ -304,8 +305,8 @@
         import array
 
         hist_elements = storage.keys()
-        element_array = array.array('f', hist_elements)
-        self.elements = element_array.tostring()
+        element_array = array.array('d', hist_elements)
+        self.elements = zlib.compress(element_array.tostring())
 
         hist_count = storage.values()
         count_array = array.array('i', hist_count)
@@ -450,7 +451,7 @@
                 temp.max = data.max
                 temp.bucket = data.bucket_size
                 a = array.array('f', data.vector)
-                temp.vector = a.tostring()
+                temp.vector = zlib.compress(a.tostring())
 
             if type(data) == Histogram:
                 temp.logs = data.logs