lldb/test/API/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py

   1 """
   2 Test lldb data formatter subsystem.
   3 """
   4
   5 import lldb
   6 from lldbsuite.test.decorators import *
   7 from lldbsuite.test.lldbbench import *
   8 from lldbsuite.test.lldbtest import *
   9 from lldbsuite.test import lldbutil
  10
  11
  12 class TestBenchmarkLibcxxList(BenchBase):
  13     @benchmarks_test
  14     def test_run_command(self):
  15         """Benchmark the std::list data formatter (libc++)"""
  16         self.build()
  17         self.data_formatter_commands()
  18
  19     def setUp(self):
  20         # Call super's setUp().
  21         BenchBase.setUp(self)
  22
  23     def data_formatter_commands(self):
  24         """Benchmark the std::list data formatter (libc++)"""
  25         self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
  26
  27         bkpt = self.target().FindBreakpointByID(
  28             lldbutil.run_break_set_by_source_regexp(self, "break here")
  29         )
  30
  31         self.runCmd("run", RUN_SUCCEEDED)
  32
  33         # The stop reason of the thread should be breakpoint.
  34         self.expect(
  35             "thread list",
  36             STOPPED_DUE_TO_BREAKPOINT,
  37             substrs=["stopped", "stop reason = breakpoint"],
  38         )
  39
  40         # This is the function to remove the custom formats in order to have a
  41         # clean slate for the next test case.
  42         def cleanup():
  43             self.runCmd("type format clear", check=False)
  44             self.runCmd("type summary clear", check=False)
  45             self.runCmd("type filter clear", check=False)
  46             self.runCmd("type synth clear", check=False)
  47             self.runCmd("settings set target.max-children-count 256", check=False)
  48
  49         # Execute the cleanup function during test case tear down.
  50         self.addTearDownHook(cleanup)
  51
  52         sw = Stopwatch()
  53
  54         sw.start()
  55         self.expect("frame variable -A list", substrs=["[300]", "300"])
  56         sw.stop()
  57
  58         print("time to print: %s" % (sw))