diff --git a/sargraph.py b/sargraph.py
index ae27b31..c47081f 100755
--- a/sargraph.py
+++ b/sargraph.py
@@ -140,16 +140,19 @@ while 1:
         break
 
 AVERAGE_LOAD = AVERAGE_LOAD / float(i)
+MAX_USED_RAM = MAX_USED_RAM / 1024.0 / 1024.0
+
+sdt = datetime.strptime(START_DATE, '%Y-%m-%d %H:%M:%S')
+edt = datetime.strptime(END_DATE, '%Y-%m-%d %H:%M:%S')
+delta_t = ((edt - sdt).total_seconds()) / 60.0
+
+f.write("# total ram: %d GB, max ram used: %.2f GB, avarage load: %.2f %%, duration: %.2f minutes\n" % (TOTAL_RAM, MAX_USED_RAM, AVERAGE_LOAD, delta_t))
 
 f.close()
 
 g.title("cpu load (avarage = %.2f %%)" % AVERAGE_LOAD)
 g("set title tc rgb 'white' font 'Courier-New,8'")
 
-sdt = datetime.strptime(START_DATE, '%Y-%m-%d %H:%M:%S')
-edt = datetime.strptime(END_DATE, '%Y-%m-%d %H:%M:%S')
-delta_t = ((edt - sdt).total_seconds()) / 60.0
-
 seconds_between = (edt - sdt).total_seconds()
 if seconds_between < 100:
  seconds_between = 100
@@ -164,8 +167,6 @@ now = datetime.now()
 now = "%04d-%02d-%02d %02d:%02d:%02d" % (now.year, now.month, now.day, now.hour, now.minute, now.second);
 
 
-MAX_USED_RAM = MAX_USED_RAM / 1024.0 / 1024.0
-
 g("set label 101 at screen 0.02, screen 0.95 \"Running on {/:Bold %s} at {/:Bold %s}, cpu count is {/:Bold %d}, total ram is {/:Bold %d GB}\\nduration: {/:Bold %s} .. {/:Bold %s} (%.2f minutes)\" tc rgb 'white'" % (uname, now, cpus, TOTAL_RAM, START_DATE, END_DATE, delta_t))
 
 i = 0