diff --git a/openquake/engine/performance.py b/openquake/engine/performance.py
index <HASH>..<HASH> 100644
--- a/openquake/engine/performance.py
+++ b/openquake/engine/performance.py
@@ -46,7 +46,7 @@ class PerformanceMonitor(object):
         2) there is an attribute self.job.id
         """
         def newmeth(self):
-            with cls(method.__name__, self.job.id):
+            with cls(method.__name__, self.job.id, flush=True):
                 return method(self)
         newmeth.__name__ = method.__name__
         return newmeth
A small improvement to the .monitor decorator


Former-commit-id: b1f9d<I>c0d<I>e2a8ab4e2a0a<I>a