diff --git a/modules/ts/misc/perf_tests_timing.py b/modules/ts/misc/perf_tests_timing.py
index d3e2c571e7..70d2aa2f03 100644
--- a/modules/ts/misc/perf_tests_timing.py
+++ b/modules/ts/misc/perf_tests_timing.py
@@ -7,28 +7,24 @@ from operator import itemgetter, attrgetter
 from summary import getSetName, alphanum_keyselector
 
 if __name__ == "__main__":
-    usage = "%prog <log_name>.xml"
+    usage = "%prog <log_name>.xml [...]"
     parser = OptionParser(usage = usage)
 
-    for arg in sys.argv:
-        print arg
-
-    parser.add_option("-o", "--output", dest="format",
-        help="output results in text format (can be 'txt', 'html' or 'auto' - default)",
-        metavar="FMT", default="auto")
+    parser.add_option("-o", "--output", dest = "format",
+        help = "output results in text format (can be 'txt', 'html' or 'auto' - default)",
+        metavar = 'FMT', default = 'auto')
 
     (options, args) = parser.parse_args()
-
-    options.generateHtml = detectHtmlOutputType(options.format)
-
     if 1 != len(args):
         parser.print_help()
         exit(0)
 
+    options.generateHtml = detectHtmlOutputType(options.format)
+
     # expand wildcards and filter duplicates
     file = os.path.abspath(args[0])
     if not os.path.isfile(file):
-        print 'Incorrect file name!'
+        sys.stderr.write("IOError reading \"" + file + "\" - " + str(err) + os.linesep)
         parser.print_help()
         exit(0)
 
@@ -71,7 +67,8 @@ if __name__ == "__main__":
         groupName = next(c for c in cases if c).shortName()
         if groupName != prevGroupName:
             if prevGroupName != None:
-                testsuits.append((prevGroupName, suit_time, has_failed))
+                testsuits.append({'name': prevGroupName, 'time': suit_time, \
+                    'failed': has_failed})
                 has_failed = False
                 suit_time = 0
             prevGroupName = groupName
@@ -79,29 +76,30 @@ if __name__ == "__main__":
         for i in range(setsCount):
             case = cases[i]
             if not case is None:
-                if case.get("status") == "run":
-                    suit_time += case.get("time")
-                if case.get("status") == "failed":
+                if case.get('status') == 'run':
+                    suit_time += case.get('time')
+                if case.get('status') == 'failed':
                     has_failed = True
 
     tbl = table()
 
     # header
-    tbl.newColumn("name", "Name", align = "left", cssclass = "col_name")
-    tbl.newColumn("time", "Time (ms)", align = "left", cssclass = "col_name")
-    tbl.newColumn("failed", "Failed tests", align = "center", cssclass = "col_name")
+    tbl.newColumn('name', 'Name of testsuit', align = 'left', cssclass = 'col_name')
+    tbl.newColumn('time', 'Time (ms)', align = 'left', cssclass = 'col_name')
+    tbl.newColumn('failed', 'Failed tests', align = 'center', cssclass = 'col_name')
 
     # rows
-    for suit in sorted(testsuits, key=lambda suit: suit[1], reverse=True):
+    for suit in sorted(testsuits, key = lambda suit: suit['time'], reverse = True):
         tbl.newRow()
-        tbl.newCell("name", suit[0])
-        tbl.newCell("time", formatValue(suit[1], "", ""), suit[1])
-        if (suit[2]):
-            tbl.newCell("failed", "Yes")
+        tbl.newCell('name', suit['name'])
+        tbl.newCell('time', formatValue(suit['time'], '', ''), suit['time'])
+        if (suit['failed']):
+            tbl.newCell('failed', 'Yes')
+        else:
+            tbl.newCell('failed', ' ')
 
     # output table
     if options.generateHtml:
-        htmlPrintHeader(sys.stdout, "Timings of %s tests from %s test logs" % (len(test_cases), setsCount))
         tbl.htmlPrintTable(sys.stdout)
         htmlPrintFooter(sys.stdout)
     else: