Uses all FIO jobs, not just job.1 when calculating metrics.
Fixes bug when multiple volumes are created, but thread gate
is not big enough.
Change-Id: I473b2d19848c6ebc15e7669d84fade52d10fb97d
JIRA: STORPERF-263
Signed-off-by: mbeierl <mark.beierl@dell.com>
         start = end - duration
 
         request = ("http://%s:%s/graphite/render/?target="
-                   "%s(%s.*.jobs.1.%s.%s)"
+                   "%s(%s.*.jobs.*.%s.%s)"
                    "&format=json"
                    "&from=%s"
                    "&until=%s"
 
                 continue
 
             workload = current_workload['workload']
-            self._thread_gate = ThreadGate(len(self.slaves),
-                                           workload.options['status-interval'])
+            self._thread_gate = ThreadGate(
+                len(self.slaves) * min(1, self.volume_count),
+                workload.options['status-interval'])
 
             self.current_workload = current_workload['name']