diff --git a/wally/suits/io/ceph.cfg b/wally/suits/io/ceph.cfg
index 1352b1e..6abaae5 100644
--- a/wally/suits/io/ceph.cfg
+++ b/wally/suits/io/ceph.cfg
@@ -7,7 +7,9 @@
 softrandommap=1
 filename={FILENAME}
 NUM_ROUNDS=7
+
 NUMJOBS={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
+NUMJOBS_SHORT={% 1, 5, 10, 15, 20, 30, 40 %}
 
 size=30G
 ramp_time=30
@@ -49,7 +51,7 @@
 blocksize=16m
 rw=randread
 direct=1
-numjobs={NUMJOBS}
+numjobs={NUMJOBS_SHORT}
 
 # ---------------------------------------------------------------------
 # sequential write