cpuidle.chart.py: re-read schedstat after tickling idle CPUs

Signed-off-by: Steven Noonan <steven@uplinklabs.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/python.d/cpuidle.chart.py b/python.d/cpuidle.chart.py
index 3b404242f5..e5ed49bd2c 100644
--- a/python.d/cpuidle.chart.py
+++ b/python.d/cpuidle.chart.py
@@ -82,13 +82,17 @@ class Service(SimpleService):
                 delta = schedstat[cpu] - active_time
                 if delta < 1:
                     needs_tickle.append(cpu)
-        self.last_schedstat = schedstat
 
         if needs_tickle:
             # This line is critical for the stats to update. If we don't "tickle"
             # idle CPUs, then the counters for those CPUs stop counting.
             self.__wake_cpus([int(cpu[3:]) for cpu in needs_tickle])
 
+            # Re-read schedstat now that we've tickled any idlers.
+            schedstat = self.__read_schedstat()
+
+        self.last_schedstat = schedstat
+
         for cpu, metrics in self.assignment.items():
             update_time = schedstat[cpu]
             results[cpu + '_active_time'] = update_time