diff --git a/zuul/rpclistener.py b/zuul/rpclistener.py
index 12d46e8754..b5f03b4dba 100644
--- a/zuul/rpclistener.py
+++ b/zuul/rpclistener.py
@@ -377,7 +377,12 @@ class RPCListener(RPCListenerBase):
 
     def handle_status_get(self, job):
         args = json.loads(job.arguments)
+        start = time.monotonic()
         output = self.sched.formatStatusJSON(args.get("tenant"))
+        end = time.monotonic()
+        self.log.debug('Formatting tenant %s status took %.3f seconds for '
+                       '%d bytes', args.get("tenant"), end - start,
+                       len(output))
         job.sendWorkComplete(output)
 
     def handle_job_get(self, gear_job):