4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
123 lines
3.8 KiB
Python
123 lines
3.8 KiB
Python
"""Benchmark the turnaround time starting a debugger and run to the breakpont with lldb vs. gdb."""
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import os, sys
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import unittest2
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import lldb
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import pexpect
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from lldbbench import *
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class CompileRunToBreakpointBench(BenchBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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BenchBase.setUp(self)
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self.exe = self.lldbHere
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self.function = 'Driver::MainLoop()'
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 3
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self.lldb_avg = None
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self.gdb_avg = None
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@benchmarks_test
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def test_run_lldb_then_gdb(self):
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"""Benchmark turnaround time with lldb vs. gdb."""
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print
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self.run_lldb_turnaround(self.exe, self.function, self.count)
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print "lldb turnaround benchmark:", self.stopwatch
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self.run_gdb_turnaround(self.exe, self.function, self.count)
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print "gdb turnaround benchmark:", self.stopwatch
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print "lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg)
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def run_lldb_turnaround(self, exe, function, count):
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def run_one_round():
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('%s %s %s' % (self.lldbExec, self.lldbOption, exe))
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('breakpoint set -F %s' % function)
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = '(lldb) '
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count + 1):
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# Ignore the first invoke lldb and run to the breakpoint turnaround time.
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if i == 0:
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run_one_round()
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else:
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with self.stopwatch:
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run_one_round()
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self.child.sendline('quit')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.lldb_avg = self.stopwatch.avg()
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self.child = None
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def run_gdb_turnaround(self, exe, function, count):
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def run_one_round():
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('gdb --nx %s' % exe)
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('break %s' % function)
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count+1):
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# Ignore the first invoke lldb and run to the breakpoint turnaround time.
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if i == 0:
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run_one_round()
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else:
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with self.stopwatch:
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run_one_round()
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self.child.sendline('quit')
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self.child.expect_exact('The program is running. Exit anyway?')
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self.child.sendline('y')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.gdb_avg = self.stopwatch.avg()
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self.child = None
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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