tests/test_cputop.py

   1 #!/usr/bin/env python3
   2
   3 from TraceTest import AnalyzesTest
   4 import sys
   5
   6
   7 class CpuTest(AnalyzesTest):
   8     def __init__(self, delete_trace=True, verbose=False):
   9         super().__init__(delete_trace=delete_trace,
  10                          verbose=verbose)
  11         self.test_list = [('cputop', self.run_no_option)]
  12
  13     def write_trace(self):
  14         # runs the whole time: 100%
  15         self.t.write_sched_switch(1000, 5, "swapper/5", 0, "prog100pc-cpu5", 42)
  16         # runs for 2s alternating with swapper out every 100ms
  17         self.t.sched_switch_50pc(1100, 5000, 0, 100,
  18                                  "swapper/0", 0, "prog20pc-cpu0", 30664)
  19         # runs for 2.5s alternating with swapper out every 100ms
  20         self.t.sched_switch_50pc(5100, 10000, 1, 100,
  21                                  "swapper/1", 0, "prog25pc-cpu1", 30665)
  22         # switch out prog100pc-cpu5
  23         self.t.write_sched_switch(11000, 5, "prog100pc-cpu5", 42, "swapper/5", 0)
  24         self.t.flush()
  25
  26     def run_no_option(self):
  27         expected = """Timerange: [1969-12-31 19:00:01.000000000, 1969-12-31 19:00:11.000000000]
  28 Per-TID CPU Usage
  29 ###############################################################################
  30 ██████████████████████████████████████████████████  100.00 %  prog100pc-cpu5 (42) (prio: 20)
  31 ████████████                                        25.00 %  prog25pc-cpu1 (30665) (prio: 20)
  32 ██████████                                          20.00 %  prog20pc-cpu0 (30664) (prio: 20)
  33 Per-CPU Usage
  34 ###############################################################################
  35 █████████████                                                      20.00 %  CPU 0
  36 ████████████████                                                   25.00 %  CPU 1
  37 █████████████████████████████████████████████████████████████████  100.00 %  CPU 5
  38
  39 Total CPU Usage: 48.33%
  40 """
  41
  42         return self.compare_output('%slttng-cputop %s "%s"' % (
  43                        self.cmd_root, self.common_options, self.t.get_trace_root()),
  44                        expected)
  45
  46
  47 def test_answer():
  48     t = CpuTest(verbose=True)
  49     ok = t.run()
  50     assert(ok)