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-rw-r--r--bin/calibrate.py81
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diff --git a/bin/calibrate.py b/bin/calibrate.py
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+++ b/bin/calibrate.py
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+#!/usr/bin/env python
+#
+# Copyright (c) 2009 The SCons Foundation
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import optparse
+import os
+import re
+import subprocess
+import sys
+
+variable_re = re.compile('^VARIABLE: (.*)$', re.M)
+elapsed_re = re.compile('^ELAPSED: (.*)$', re.M)
+
+def main(argv=None):
+ if argv is None:
+ argv = sys.argv
+
+ parser = optparse.OptionParser(usage="calibrate.py [-h] [-p PACKAGE], [--min time] [--max time] timings/*/*-run.py")
+ parser.add_option('--min', type='float', default=9.5,
+ help="minimum acceptable execution time (default 9.5)")
+ parser.add_option('--max', type='float', default=10.00,
+ help="maximum acceptable execution time (default 10.00)")
+ parser.add_option('-p', '--package', type="string",
+ help="package type")
+ opts, args = parser.parse_args(argv[1:])
+
+ os.environ['TIMESCONS_CALIBRATE'] = '1'
+
+ for arg in args:
+ if len(args) > 1:
+ print arg + ':'
+
+ command = [sys.executable, 'runtest.py', '--noqmtest']
+ if opts.package:
+ command.extend(['-p', opts.package])
+ command.append(arg)
+
+ run = 1
+ good = 0
+ while good < 3:
+ p = subprocess.Popen(command,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.STDOUT)
+ output = p.communicate()[0]
+ vm = variable_re.search(output)
+ em = elapsed_re.search(output)
+ elapsed = float(em.group(1))
+ print "run %3d: %7.3f: %s" % (run, elapsed, ' '.join(vm.groups()))
+ if opts.min < elapsed and elapsed < opts.max:
+ good += 1
+ else:
+ good = 0
+ for v in vm.groups():
+ var, value = v.split('=', 1)
+ value = int((int(value) * opts.max) / elapsed)
+ os.environ[var] = str(value)
+ run += 1
+
+ return 0
+
+if __name__ == "__main__":
+ sys.exit(main())