diff --git a/setup/start/collectd/du.py b/setup/start/collectd/du.py
index 14e5b0568..1f7f00832 100644
--- a/setup/start/collectd/du.py
+++ b/setup/start/collectd/du.py
@@ -1,4 +1,4 @@
-import collectd,os,subprocess,sys,re
+import collectd,os,subprocess,sys,re,time
 
 # https://www.programcreek.com/python/example/106897/collectd.register_read
 
@@ -13,7 +13,7 @@ def du(pathinfo):
     collectd.info('computing size with command: %s' % cmd);
     try:
         size = subprocess.check_output(cmd, shell=True).split()[0].decode('utf-8')
-        collectd.info('\tsize of %s is %s' % (pathinfo['dir'], size))
+        collectd.info('\tsize of %s is %s (time: %i)' % (pathinfo['dir'], size, int(time.time())))
         return size
     except Exception as e:
         collectd.info('\terror getting the size of %s: %s' % (pathinfo['dir'], str(e)))
@@ -29,10 +29,10 @@ def dockerSize():
     cmd = 'timeout 1800 docker system df --format "{{.Size}}" | head -n1'
     try:
         size = subprocess.check_output(cmd, shell=True).strip().decode('utf-8')
-        collectd.info('\tsize of docker images is %s' % size)
+        collectd.info('size of docker images is %s (%s) (time: %i)' % (size, parseSize(size), int(time.time())))
         return parseSize(size)
     except Exception as e:
-        collectd.info('\terror getting docker images size : %s' % str(e))
+        collectd.info('error getting docker images size : %s' % str(e))
         return 0
 
 # configure is called for each module block. this is called before init