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+#
+# __COPYRIGHT__
+#
+# 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.
+#
+
+"""
+This configuration is for timing how we handle the NxM interaction when
+we build a lot of targets from a lot of source files.
+
+We create a list of 500 target files that will each be built by copying
+a file from a corresponding list of 500 source files. The source
+files themselves are each built by a Python function action that's the
+equivalent of "echo contents > $TARGET".
+"""
+
+import TestSCons
+
+test = TestSCons.TimeSCons()
+
+target_count = 500
+
+for t in xrange(target_count):
+ open('source_%04d' % t, 'wb' ).write('contents\n')
+
+test.main(options='TARGET_COUNT=%s' % target_count)
+
+test.pass_test()