mirror of
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89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (c) 2009 The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import optparse
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import os
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import re
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import subprocess
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import sys
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variable_re = re.compile(r'^VARIABLE: (.*)$', re.M)
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elapsed_re = re.compile(r'^ELAPSED: (.*)$', re.M)
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def main(argv=None):
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if argv is None:
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argv = sys.argv
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parser = optparse.OptionParser(usage="calibrate.py [-h] [-p PACKAGE], [--min time] [--max time] timings/*/*-run.py")
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parser.add_option('--min', type='float', default=9.5,
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help="minimum acceptable execution time (default 9.5)")
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parser.add_option('--max', type='float', default=10.00,
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help="maximum acceptable execution time (default 10.00)")
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parser.add_option('-p', '--package', type="string",
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help="package type")
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opts, args = parser.parse_args(argv[1:])
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os.environ['TIMESCONS_CALIBRATE'] = '1'
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for arg in args:
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if len(args) > 1:
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print(arg + ':')
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command = [sys.executable, 'runtest.py']
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if opts.package:
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command.extend(['-p', opts.package])
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command.append(arg)
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run = 1
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good = 0
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while good < 3:
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p = subprocess.Popen(command,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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universal_newlines=True)
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output = p.communicate()[0]
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vm = variable_re.search(output)
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em = elapsed_re.search(output)
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try:
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elapsed = float(em.group(1))
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except AttributeError:
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print(output)
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raise
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print("run %3d: %7.3f: %s" % (run, elapsed, ' '.join(vm.groups())))
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if opts.min < elapsed < opts.max:
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good += 1
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else:
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good = 0
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for v in vm.groups():
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var, value = v.split('=', 1)
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# TODO: this sometimes converges slowly, better algorithm?
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value = int((int(value) * opts.max) // elapsed)
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os.environ[var] = str(value)
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run += 1
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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