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
18
19import os, sys
20import re
21from optparse import OptionParser
22
23# dotest.py invocation with no '-e exe-path' uses lldb as the inferior program,
24# unless there is a mentioning of custom executable program.
25benches = [
26    # Measure startup delays creating a target, setting a breakpoint, and run to breakpoint stop.
27    './dotest.py -v +b %E %X -n -p TestStartupDelays.py',
28
29    # Measure 'frame variable' response after stopping at a breakpoint.
30    './dotest.py -v +b %E %X -n -p TestFrameVariableResponse.py',
31
32    # Measure stepping speed after stopping at a breakpoint.
33    './dotest.py -v +b %E %X -n -p TestSteppingSpeed.py',
34
35    # Measure expression cmd response with a simple custom executable program.
36    './dotest.py +b -n -p TestExpressionCmd.py',
37
38    # Attach to a spawned process then run disassembly benchmarks.
39    './dotest.py -v +b -n %E -p TestDoAttachThenDisassembly.py'
40]
41
42def main():
43    """Read the items from 'benches' and run the command line one by one."""
44    parser = OptionParser(usage="""\
45%prog [options]
46Run the standard benchmarks defined in the list named 'benches'.\
47""")
48    parser.add_option('-e', '--executable',
49                      type='string', action='store',
50                      dest='exe',
51                      help='The target program launched by lldb.')
52    parser.add_option('-x', '--breakpoint-spec',
53                      type='string', action='store',
54                      dest='break_spec',
55                      help='The lldb breakpoint spec for the target program.')
56
57    # Parses the options, if any.
58    opts, args = parser.parse_args()
59
60    print("Starting bench runner....")
61
62    for item in benches:
63        command = item.replace('%E',
64                               '-e "%s"' % opts.exe if opts.exe else '')
65        command = command.replace('%X',
66                               '-x "%s"' % opts.break_spec if opts.break_spec else '')
67        print("Running %s" % (command))
68        os.system(command)
69
70    print("Bench runner done.")
71
72if __name__ == '__main__':
73    main()
74