diff --git a/wally/suits/io/rrd.cfg b/wally/suits/io/rrd.cfg
index 42ce09f..4cf9ca9 100644
--- a/wally/suits/io/rrd.cfg
+++ b/wally/suits/io/rrd.cfg
@@ -2,12 +2,39 @@
 include defaults.cfg
 
 size={TEST_FILE_SIZE}
-ramp_time=0
-runtime=5
 
 # ---------------------------------------------------------------------
 [rws_{TEST_SUMM}]
 blocksize=4k
 rw=randwrite
 sync=1
+ramp_time=0
+runtime=60
+numjobs=50
 
+# ---------------------------------------------------------------------
+# [rws_{TEST_SUMM}]
+# blocksize=4k
+# rw=randwrite
+# sync=1
+# ramp_time=0
+# runtime=60
+# numjobs=10
+
+# ---------------------------------------------------------------------
+# [rws_{TEST_SUMM}]
+# blocksize=4k
+# rw=randwrite
+# sync=1
+# ramp_time=10
+# runtime=60
+# numjobs=10
+
+# ---------------------------------------------------------------------
+# [rws_{TEST_SUMM}]
+# blocksize=4k
+# rw=randwrite
+# sync=1
+# ramp_time=10
+# runtime=60
+# numjobs=1