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
17import os, sys
18import re
19from optparse import OptionParser
20
21# dotest.py invocation with no '-e exe-path' uses lldb as the inferior program,
22# unless there is a mentioning of custom executable program.
23benches = [
24    # Measure startup delays creating a target, setting a breakpoint, and run to breakpoint stop.
25    './dotest.py -v +b %E %X -n -p TestStartupDelays.py',
26
27    # Measure 'frame variable' response after stopping at a breakpoint.
28    './dotest.py -v +b %E %X -n -p TestFrameVariableResponse.py',
29
30    # Measure stepping speed after stopping at a breakpoint.
31    './dotest.py -v +b %E %X -n -p TestSteppingSpeed.py',
32
33    # Measure expression cmd response with a simple custom executable program.
34    './dotest.py +b -n -p TestExpressionCmd.py',
35
36    # Attach to a spawned process then run disassembly benchmarks.
37    './dotest.py -v +b -n %E -p TestDoAttachThenDisassembly.py'
38]
39
40def main():
41    """Read the items from 'benches' and run the command line one by one."""
42    parser = OptionParser(usage="""\
43%prog [options]
44Run the standard benchmarks defined in the list named 'benches'.\
45""")
46    parser.add_option('-e', '--executable',
47                      type='string', action='store',
48                      dest='exe',
49                      help='The target program launched by lldb.')
50    parser.add_option('-x', '--breakpoint-spec',
51                      type='string', action='store',
52                      dest='break_spec',
53                      help='The lldb breakpoint spec for the target program.')
54
55    # Parses the options, if any.
56    opts, args = parser.parse_args()
57
58    print "Starting bench runner...."
59
60    for item in benches:
61        command = item.replace('%E',
62                               '-e "%s"' % opts.exe if opts.exe else '')
63        command = command.replace('%X',
64                               '-x "%s"' % opts.break_spec if opts.break_spec else '')
65        print "Running %s" % (command)
66        os.system(command)
67
68    print "Bench runner done."
69
70if __name__ == '__main__':
71    main()
72