From 1a835a2e1b06ac4eb87fc1c72175cf54728b3fb3 Mon Sep 17 00:00:00 2001
From: ThorstenB <brehmt@gmail.com>
Date: Thu, 5 Apr 2012 19:30:00 +0200
Subject: [PATCH] performance monitor: start measurement interval with a fresh
 timestamp.

---
 simgear/structure/SGPerfMon.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simgear/structure/SGPerfMon.cxx b/simgear/structure/SGPerfMon.cxx
index 68bdd9f0..11968b4c 100644
--- a/simgear/structure/SGPerfMon.cxx
+++ b/simgear/structure/SGPerfMon.cxx
@@ -76,7 +76,10 @@ SGPerformanceMonitor::update(double dt)
         // flag has changed, update subsystem manager
         _isEnabled = _statisticsFlag->getBoolValue();
         if (_isEnabled)
+        {
             _subSysMgr->setReportTimingCb(this,&subSystemMgrHook);
+            _lastUpdate.stamp();
+        }
         else
             _subSysMgr->setReportTimingCb(this,0);
     }