tests/test_cputop.py

   1 # The MIT License (MIT)
   2 #
   3 # Copyright (C) 2016 - Julien Desfossez <jdesfossez@efficios.com>
   4 #                      Antoine Busque <abusque@efficios.com>
   5 #
   6 # Permission is hereby granted, free of charge, to any person obtaining a copy
   7 # of this software and associated documentation files (the "Software"), to deal
   8 # in the Software without restriction, including without limitation the rights
   9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 # copies of the Software, and to permit persons to whom the Software is
  11 # furnished to do so, subject to the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included in
  14 # all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22 # SOFTWARE.
  23
  24 from .analysis_test import AnalysisTest
  25
  26
  27 class CpuTest(AnalysisTest):
  28     def write_trace(self):
  29         # runs the whole time: 100%
  30         self.trace_writer.write_sched_switch(1000, 5, 'swapper/5',
  31                                              0, 'prog100pc-cpu5', 42)
  32         # runs for 2s alternating with swapper out every 100ms
  33         self.trace_writer.sched_switch_50pc(1100, 5000, 0, 100, 'swapper/0',
  34                                             0, 'prog20pc-cpu0', 30664)
  35         # runs for 2.5s alternating with swapper out every 100ms
  36         self.trace_writer.sched_switch_50pc(5100, 10000, 1, 100, 'swapper/1',
  37                                             0, 'prog25pc-cpu1', 30665)
  38         # switch out prog100pc-cpu5
  39         self.trace_writer.write_sched_switch(11000, 5, 'prog100pc-cpu5',
  40                                              42, 'swapper/5', 0)
  41         self.trace_writer.flush()
  42
  43     def test_cputop(self):
  44         expected = self.get_expected_output('cputop.txt')
  45         result = self.get_cmd_output('lttng-cputop')
  46
  47         self.assertMultiLineEqual(result, expected)