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44 lines
759 B
44 lines
759 B
#!/usr/bin/python
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#
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# Small helper for perftest runs.
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#
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import os
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import sys
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import subprocess
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def main():
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count = int(sys.argv[1])
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time_min = None
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for i in xrange(count):
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cmd = [
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'time',
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'-f', '%U',
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'--quiet',
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sys.argv[2], # cmd
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sys.argv[3] # testcase
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]
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#print(repr(cmd))
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stderr = p.communicate()
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retval = p.wait()
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#print(i, retval, stdout, stderr)
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if retval != 0:
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print 'n/a'
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return
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time = float(stderr)
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#print(i, time)
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if time_min is None:
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time_min = time
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else:
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time_min = min(time_min, time)
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# /usr/bin/time has only two digits of resolution
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print('%.02f' % time_min)
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if __name__ == '__main__':
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main()
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