rename bw_mean to bw, other fixes
diff --git a/scripts/fio_tests_configs/io_task_test.cfg b/scripts/fio_tests_configs/io_task_test.cfg
index 682fbd1..4d68493 100644
--- a/scripts/fio_tests_configs/io_task_test.cfg
+++ b/scripts/fio_tests_configs/io_task_test.cfg
@@ -1,23 +1,24 @@
 [defaults]
 group_reporting
 wait_for_previous
-ramp_time=15
+ramp_time=0
 filename={FILENAME}
 buffered=0
 iodepth=1
 size=1000Mb
 time_based
+RUNTIME=10
 
-[writetest * {ROUNDS}]
+[writetest * {NUM_ROUNDS}]
 blocksize=4k
 rw=randwrite
 direct=1
-runtime=30
+runtime={RUNTIME}
 numjobs=1
 
-[readtest * {ROUNDS}]
+[readtest * {NUM_ROUNDS}]
 numjobs=4
 blocksize=4k
 rw=randread
 direct=1
-runtime=30
+runtime={RUNTIME}