diff --git a/wally/suits/io/ceph.cfg b/wally/suits/io/ceph.cfg
index 9e98dd6..c9b2f53 100644
--- a/wally/suits/io/ceph.cfg
+++ b/wally/suits/io/ceph.cfg
@@ -12,8 +12,8 @@
 NUMJOBS_SHORT={% 1, 5, 10 %}
 
 size=30G
-ramp_time=30
-runtime=60
+ramp_time=5
+runtime=30
 
 # ---------------------------------------------------------------------
 # check different thread count, sync mode. (latency, iops) = func(th_count)
diff --git a/wally/suits/io/results_loader.py b/wally/suits/io/results_loader.py
index 102fe4c..4dff186 100644
--- a/wally/suits/io/results_loader.py
+++ b/wally/suits/io/results_loader.py
@@ -34,14 +34,9 @@
             assert len(results['bw']) % vm_count == 0
             block_count = len(results['bw']) // vm_count
 
-            # print
-            # print name, block_count
-            # print results['bw']
-            # print split_and_add(results['bw'], block_count)
-
             bw, bw_dev = med_dev(split_and_add(results['bw'], block_count))
-            iops, iops_dev = med_dev(split_and_add(results['iops'],
-                                                   block_count))
+            iops, _ = med_dev(split_and_add(results['iops'],
+                                            block_count))
             lat, lat_dev = med_dev(results['lat'])
             dev = bw_dev / float(bw)
             data[name] = PerfInfo(name, bw, iops, dev, lat, lat_dev, results,