diff --git a/benchmark/cosbench.py b/benchmark/cosbench.py
index 2087252e..0aefa85e 100644
--- a/benchmark/cosbench.py
+++ b/benchmark/cosbench.py
@@ -28,6 +28,8 @@ def __init__(self, cluster, config):
         self.objects = config["objects_max"]
         self.mode = config["mode"]
         self.user = settings.cluster.get('user')
+        self.rgw = settings.cluster.get('rgws')[0]
+        self.use_existing = settings.cluster.get('use_existing')
 
         self.run_dir = '%s/osd_ra-%08d/op_size-%s/concurrent_procs-%03d/containers-%05d/objects-%05d/%s' % (self.run_dir, int(self.osd_ra), self.op_size, int(self.total_procs), int(self.containers),int(self.objects), self.mode)
         self.out_dir = '%s/osd_ra-%08d/op_size-%s/concurrent_procs-%03d/containers-%05d/objects-%05d/%s' % (self.archive_dir, int(self.osd_ra), self.op_size, int(self.total_procs),  int(self.containers),int(self.objects), self.mode)
@@ -46,7 +48,17 @@ def prerun_check(self):
                 pass
         logger.debug("%s", cosconf)
         if "username" in cosconf and "password" in cosconf and "url" in cosconf:
+
+	    if not self.use_existing:
+	        user, subuser = cosconf["username"].split(':')
+                stdout, stderr = common.pdsh("%s@%s" % (self.user, self.rgw),"radosgw-admin user create --uid='%s' --display-name='%s'" % (user, user)).communicate()
+                stdout, stderr = common.pdsh("%s@%s" % (self.user, self.rgw),"radosgw-admin subuser create --uid=%s --subuser=%s --access=full" % (user, cosconf["username"])).communicate()
+                stdout, stderr = common.pdsh("%s@%s" % (self.user, self.rgw),"radosgw-admin key create --uid=%s --subuser=%s --key-type=swift" % (user, cosconf["username"])).communicate()
+                stdout, stderr = common.pdsh("%s@%s" % (self.user, self.rgw),"radosgw-admin user modify --uid=%s --max-buckets=100000" % (user)).communicate()
+                stdout, stderr = common.pdsh("%s@%s" % (self.user, self.rgw),"radosgw-admin subuser modify --uid=%s --subuser=%s --secret=%s --key-type=swift" % (user, cosconf["username"], cosconf["password"])).communicate()
+
             stdout, stderr = common.pdsh("%s@%s" % (self.user, self.config["controller"]),"curl -D - -H 'X-Auth-User: %s' -H 'X-Auth-Key: %s' %s" % (cosconf["username"], cosconf["password"], cosconf["url"])).communicate()
+
         else:
             logger.error("Auth Configuration in Yaml file is not in correct format")
             sys.exit()
diff --git a/example/wip-cosbench/cosbench_ex.yaml b/example/wip-cosbench/cosbench_ex.yaml
new file mode 100644
index 00000000..939bde62
--- /dev/null
+++ b/example/wip-cosbench/cosbench_ex.yaml
@@ -0,0 +1,47 @@
+cluster:
+  user: 'cbt'
+  head: "cadmin"
+  clients: ["cadmin"]
+  osds: ["inf1", "inf2", "inf3"]
+  mons: 
+    inf1:
+      a: "192.168.110.51:6789"
+    inf2:
+      b: "192.168.110.52:6789"
+    inf3:
+      c: "192.168.110.53:6789"
+  rgws: ["inf1", "inf2", "inf3"]
+  osds_per_node: 1
+  fs: 'xfs'
+  mkfs_opts: '-f -i size=2048 -n size=64k'
+  mount_opts: '-o inode64,noatime,logbsize=256k'
+  conf_file: '/home/cbt/cbt/runs/test2.ceph.conf'
+  iterations: 1
+  use_existing: True
+  clusterid: "ceph"
+  tmp_dir: "/tmp/cbt"
+  pool_profiles:
+    rbd:
+      pg_size: 64
+      pgp_size: 64
+      replication: 2
+benchmarks:
+   cosbench:
+     obj_size: [64KB]
+     osd_ra: [4096]
+     workers: 1
+     containers_max: 10
+     objects_max: 100
+     mode: [write]
+     cosbench_dir: '/home/cbt/cb/0.4.1.0' 
+     cosbench_xml_dir: '/home/cbt/cb/xml_dir'
+     controller: "cadmin"
+     auth:
+      config: username=cosbench:operator;password=intel2012;url=http://192.168.110.51:7480/auth/v1.0;retry=9
+     template: [default]
+     rampup: 10
+     runtime: 100
+     rampdown: 10
+     containers: ["u(1,100)"]
+     objects: ["u(1,100)"]
+     ratio: [100]
diff --git a/example/wip-cosbench/cosbench_ex_ceph.conf b/example/wip-cosbench/cosbench_ex_ceph.conf
new file mode 100644
index 00000000..fdb12c38
--- /dev/null
+++ b/example/wip-cosbench/cosbench_ex_ceph.conf
@@ -0,0 +1,54 @@
+[global]
+        osd pool default size = 1
+        auth cluster required = none
+        auth service required = none
+        auth client required = none
+        keyring = /tmp/cbt/ceph/keyring
+        osd pg bits = 8  
+        osd pgp bits = 8
+        log to syslog = false
+        log file = /tmp/cbt/ceph/log/$name.log
+        public network = 192.168.110.0/24
+        cluster network = 192.168.110.0/24
+        rbd cache = true
+        osd scrub load threshold = 0.01
+        osd scrub min interval = 137438953472
+        osd scrub max interval = 137438953472
+        osd deep scrub interval = 137438953472
+        osd max scrubs = 16
+        filestore merge threshold = 40
+        filestore split multiple = 8
+        osd op threads = 8
+        mon pg warn max object skew = 100000
+        mon pg warn min per osd = 0
+        mon pg warn max per osd = 32768
+
+[mon]
+        mon data = /tmp/cbt/ceph/mon.$id
+
+[mon.a]
+        host = inf1 
+        mon addr = 192.168.110.51:6789
+
+[mon.b]
+        host = inf2 
+        mon addr = 192.168.110.52:6789
+
+[mon.c]
+        host = inf3 
+        mon addr = 192.168.110.53:6789
+
+[osd.0]
+        host = inf1
+        osd data = /tmp/cbt/mnt/osd-device-0-data
+        osd journal = /dev/disk/by-partlabel/osd-device-0-journal
+
+[osd.1]
+        host = inf2
+        osd data = /tmp/cbt/mnt/osd-device-0-data
+        osd journal = /dev/disk/by-partlabel/osd-device-0-journal
+
+[osd.2]
+        host = inf3
+        osd data = /tmp/cbt/mnt/osd-device-0-data
+        osd journal = /dev/disk/by-partlabel/osd-device-0-journal