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#!/usr/bin/env python
"""
A simple bench runner which delegates to the ./dotest.py test driver to run the
benchmarks defined in the list named 'benches'.
You need to hand edit 'benches' to modify/change the command lines passed to the
test driver.
Use the following to get only the benchmark results in your terminal output:
./bench.py -e /Volumes/data/lldb/svn/regression/build/Debug/lldb -x '-F Driver::MainLoop()' 2>&1 | grep -P '^lldb.*benchmark:'
See also bench-history.
"""
from __future__ import print_function
from __future__ import absolute_import
import os
import sys
import re
from optparse import OptionParser
# dotest.py invocation with no '-e exe-path' uses lldb as the inferior program,
# unless there is a mentioning of custom executable program.
benches = [
# Measure startup delays creating a target, setting a breakpoint, and run
# to breakpoint stop.
'./dotest.py -v +b %E %X -n -p TestStartupDelays.py',
# Measure 'frame variable' response after stopping at a breakpoint.
'./dotest.py -v +b %E %X -n -p TestFrameVariableResponse.py',
# Measure stepping speed after stopping at a breakpoint.
'./dotest.py -v +b %E %X -n -p TestSteppingSpeed.py',
# Measure expression cmd response with a simple custom executable program.
'./dotest.py +b -n -p TestExpressionCmd.py',
# Attach to a spawned process then run disassembly benchmarks.
'./dotest.py -v +b -n %E -p TestDoAttachThenDisassembly.py'
]
def main():
"""Read the items from 'benches' and run the command line one by one."""
parser = OptionParser(usage="""\
%prog [options]
Run the standard benchmarks defined in the list named 'benches'.\
""")
parser.add_option('-e', '--executable',
type='string', action='store',
dest='exe',
help='The target program launched by lldb.')
parser.add_option('-x', '--breakpoint-spec',
type='string', action='store',
dest='break_spec',
help='The lldb breakpoint spec for the target program.')
# Parses the options, if any.
opts, args = parser.parse_args()
print("Starting bench runner....")
for item in benches:
command = item.replace('%E',
'-e "%s"' % opts.exe if opts.exe else '')
command = command.replace('%X', '-x "%s"' %
opts.break_spec if opts.break_spec else '')
print("Running %s" % (command))
os.system(command)
print("Bench runner done.")
if __name__ == '__main__':
main()
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