start adding unit tests, rework config compiler
diff --git a/wally/suits/io/io_scenario_ceph.cfg b/wally/suits/io/io_scenario_ceph.cfg
index 5e793f2..cc8e411 100644
--- a/wally/suits/io/io_scenario_ceph.cfg
+++ b/wally/suits/io/io_scenario_ceph.cfg
@@ -7,56 +7,55 @@
softrandommap=1
filename={FILENAME}
NUM_ROUNDS=7
+NUMJOBS={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
size=5G
-ramp_time=20
-runtime=20
+ramp_time=30
+runtime=60
# ---------------------------------------------------------------------
-# check different thread count, direct read/write mode. (bw, iops) = func(th_count)
-# also check BW for seq read/write.
+# check different thread count, sync mode. (latency, iops) = func(th_count)
+# ---------------------------------------------------------------------
+[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=4k
+rw=randwrite
+sync=1
+numjobs={NUMJOBS}
+
+# ---------------------------------------------------------------------
+# check different thread count, sync mode. (latency, iops) = func(th_count)
+# ---------------------------------------------------------------------
+[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=4k
+rw=randwrite
+direct=1
+numjobs=1
+
+# ---------------------------------------------------------------------
+# check different thread count, direct read mode. (latency, iops) = func(th_count)
+# also check iops for randread
+# ---------------------------------------------------------------------
+[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=4k
+rw=randread
+direct=1
+numjobs={NUMJOBS}
+
+# ---------------------------------------------------------------------
+# this is essentially sequential read openration
+# we can't use seq read with numjobs > 1 on clouds due to caching
+# ---------------------------------------------------------------------
+[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
+blocksize=16m
+rw=randread
+direct=1
+numjobs={NUMJOBS}
+
+# ---------------------------------------------------------------------
+# sequential write
# ---------------------------------------------------------------------
[ceph_test_{TEST_SUMM} * {NUM_ROUNDS}]
blocksize=1m
-rw=read
+rw=write
direct=1
-offset_increment={PER_TH_OFFSET}
-numjobs={% 20, 120 %}
-
-# # ---------------------------------------------------------------------
-# # check different thread count, sync mode. (latency, iops) = func(th_count)
-# # ---------------------------------------------------------------------
-# [hdd_test_{TEST_SUMM} * {NUM_ROUNDS}]
-# blocksize=4k
-# rw=randwrite
-# sync=1
-# numjobs={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
-#
-# # ---------------------------------------------------------------------
-# # check different thread count, direct read mode. (latency, iops) = func(th_count)
-# # also check iops for randread
-# # ---------------------------------------------------------------------
-# [hdd_test_{TEST_SUMM} * {NUM_ROUNDS}]
-# blocksize=4k
-# rw=randread
-# direct=1
-# numjobs={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
-#
-# # ---------------------------------------------------------------------
-# # check different thread count, direct read/write mode. (bw, iops) = func(th_count)
-# # also check BW for seq read/write.
-# # ---------------------------------------------------------------------
-# [hdd_test_{TEST_SUMM} * {NUM_ROUNDS}]
-# blocksize=1m
-# rw={% read, write %}
-# direct=1
-# offset_increment=1073741824 # 1G
-# numjobs={% 1, 5, 10, 15, 20, 30, 40, 80, 120 %}
-#
-# # ---------------------------------------------------------------------
-# # check IOPS randwrite.
-# # ---------------------------------------------------------------------
-# [hdd_test_{TEST_SUMM} * {NUM_ROUNDS}]
-# blocksize=4k
-# rw=randwrite
-# direct=1
+numjobs={NUMJOBS}