tests/profiler-poc.py

   1 ##############################################################################
   2 # Copyright (c) 2016 ZTE Corporation and others.
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9
  10 """
  11 PoC of performance profiler for OPNFV doctor project
  12
  13 Usage:
  14
  15 Export environment variables to set timestamp at each checkpoint in millisecond.
  16 Valid check points are: DOCTOR_PROFILER_T{00-09}
  17
  18 See also: https://goo.gl/98Osig
  19 """
  20
  21 import os
  22
  23 PREFIX = 'DOCTOR_PROFILER'
  24 TOTAL_CHECK_POINTS = 10
  25 MODULE_CHECK_POINTS = ['T00', 'T01', 'T04', 'T05', 'T06', 'T09']
  26 TAG_FORMAT = "{:<5}"
  27 # Inspired by https://github.com/reorx/httpstat
  28 TEMPLATE = """
  29 Total time cost: {total}(ms)
  30 ==============================================================================>
  31        |Monitor|Inspector           |Controller|Notifier|Evaluator           |
  32        |{M00}  |{M01}               |{M02}     |{M03}   |{M04}               |
  33        |       |      |      |      |          |        |      |      |      |
  34 host down:{T00}|      |      |      |          |        |      |      |      |
  35      raw failure:{T01}|      |      |          |        |      |      |      |
  36          found affected:{T02}|      |          |        |      |      |      |
  37                   set VM error:{T03}|          |        |      |      |      |
  38                          marked host down:{T04}|        |      |      |      |
  39                                notified VM error:{T05}  |      |      |      |
  40                                         transformed event:{T06}|      |      |
  41                                                  evaluated event:{T07}|      |
  42                                                             fired alarm:{T08}|
  43                                                                 received alarm:{T09}
  44 """
  45
  46
  47 def main():
  48     check_points = ["T{:02d}".format(i) for i in range(TOTAL_CHECK_POINTS)]
  49     module_map = {"M{:02d}".format(i):
  50                   (MODULE_CHECK_POINTS[i], MODULE_CHECK_POINTS[i + 1])
  51                   for i in range(len(MODULE_CHECK_POINTS) - 1)}
  52
  53     # check point tags
  54     elapsed_ms = {cp: os.getenv("{}_{}".format(PREFIX, cp))
  55                   for cp in check_points}
  56
  57     def format_tag(tag):
  58         return TAG_FORMAT.format(tag or '?')
  59
  60     tags = {cp: format_tag(ms) for cp, ms in elapsed_ms.iteritems()}
  61
  62     def time_cost(cp):
  63         if elapsed_ms[cp[0]] and elapsed_ms[cp[1]]:
  64             return int(elapsed_ms[cp[1]]) - int(elapsed_ms[cp[0]])
  65         else:
  66             return None
  67
  68     # module time cost tags
  69     modules_cost_ms = {module: time_cost(cp)
  70                        for module, cp in module_map.iteritems()}
  71
  72     tags.update({module: format_tag(cost)
  73                  for module, cost in modules_cost_ms.iteritems()})
  74
  75     tags.update({'total': time_cost((check_points[0], check_points[-1]))})
  76
  77     profile = TEMPLATE.format(**tags)
  78
  79     print profile
  80
  81 if __name__ == '__main__':
  82     main()