1#!/usr/bin/env python
2
3"""
4A simple bench runner which delegates to the ./dotest.py test driver to run the
5benchmarks defined in the list named 'benches'.
6
7You need to hand edit 'benches' to modify/change the command lines passed to the
8test driver.
9
10Use the following to get only the benchmark results in your terminal output:
11
12    ./bench.py -e /Volumes/data/lldb/svn/regression/build/Debug/lldb -x '-F Driver::MainLoop()' 2>&1 | grep -P '^lldb.*benchmark:'
13
14See also bench-history.
15"""
16
17from __future__ import print_function
18from __future__ import absolute_import
19
20import os, sys
21import re
22from optparse import OptionParser
23
24# dotest.py invocation with no '-e exe-path' uses lldb as the inferior program,
25# unless there is a mentioning of custom executable program.
26benches = [
27    # Measure startup delays creating a target, setting a breakpoint, and run to breakpoint stop.
28    './dotest.py -v +b %E %X -n -p TestStartupDelays.py',
29
30    # Measure 'frame variable' response after stopping at a breakpoint.
31    './dotest.py -v +b %E %X -n -p TestFrameVariableResponse.py',
32
33    # Measure stepping speed after stopping at a breakpoint.
34    './dotest.py -v +b %E %X -n -p TestSteppingSpeed.py',
35
36    # Measure expression cmd response with a simple custom executable program.
37    './dotest.py +b -n -p TestExpressionCmd.py',
38
39    # Attach to a spawned process then run disassembly benchmarks.
40    './dotest.py -v +b -n %E -p TestDoAttachThenDisassembly.py'
41]
42
43def main():
44    """Read the items from 'benches' and run the command line one by one."""
45    parser = OptionParser(usage="""\
46%prog [options]
47Run the standard benchmarks defined in the list named 'benches'.\
48""")
49    parser.add_option('-e', '--executable',
50                      type='string', action='store',
51                      dest='exe',
52                      help='The target program launched by lldb.')
53    parser.add_option('-x', '--breakpoint-spec',
54                      type='string', action='store',
55                      dest='break_spec',
56                      help='The lldb breakpoint spec for the target program.')
57
58    # Parses the options, if any.
59    opts, args = parser.parse_args()
60
61    print("Starting bench runner....")
62
63    for item in benches:
64        command = item.replace('%E',
65                               '-e "%s"' % opts.exe if opts.exe else '')
66        command = command.replace('%X',
67                               '-x "%s"' % opts.break_spec if opts.break_spec else '')
68        print("Running %s" % (command))
69        os.system(command)
70
71    print("Bench runner done.")
72
73if __name__ == '__main__':
74    main()
75