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This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
122 lines
3.8 KiB
Python
122 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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from __future__ import print_function
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import os, sys
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import lldb
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from lldbsuite.test.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 = lldbtest_config.lldbExec
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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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@no_debug_info_test
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@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
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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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import pexpect
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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' % (lldbtest_config.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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import pexpect
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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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