144 lines
4.1 KiB
Python
Executable File
144 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python2
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# (C) Copyright IBM Corporation 2004
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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# This script is used to run api_speed against several different libGL
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# libraries and compare the results. See the show_usage function for more
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# details on how to use it.
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import re, os, sys, getopt
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class results:
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def process_file(self, f):
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self.cycles = {}
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self.iterations = -1
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for line in f.readlines():
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m = re.match("(\d+) calls to (.{20}) required (\d+) cycles.", line)
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if self.iterations != -1 and int(m.group(1)) != self.iterations:
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raise
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# This could be done with lstrip, but the version of
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# the Python library on my system doesn't have it.
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# The installed version of Python is quite old. :(
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temp = m.group(2)
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function_name = None
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for i in range(len(temp)):
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if temp[i] != ' ':
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function_name = temp[i:]
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break
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if function_name == None:
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raise
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self.cycles[ function_name ] = int(m.group(3))
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self.iterations = int(m.group(1))
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def show_results(self):
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for name in self.cycles:
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print "%s -> %f" % (name, float(self.cycles[name]) / self.iterations)
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def compare_results(self, other):
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for name in self.cycles:
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if other.cycles.has_key(name):
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a = float(self.cycles[name]) / float(self.iterations)
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b = float(other.cycles[name]) / float(other.iterations)
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if abs( a ) < 0.000001:
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print "a = %f, b = %f" % (a, b)
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else:
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p = (100.0 * b / a) - 100.0
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print "%- 20s %7.2f - %7.2f = % -6.2f (%+.1f%%)" % (name, a, b, a - b, p)
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return
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def make_execution_string(lib, iterations):
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if lib == None:
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return "./api_speed %u" % (iterations)
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else:
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return "LD_PRELOAD=%s ./api_speed %u" % (lib, iterations)
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def show_usage():
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print """Usage: %s [-i iterations] {library ...}
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The full path to one or more libGL libraries (including the full name of the
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library) can be included on the command-line. Each library will be tested,
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and the results compared. The first library listed will be used as the
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"base line" for all comparisons.""" % (sys.argv[0])
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sys.exit(1)
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if __name__ == '__main__':
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try:
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(args, trail) = getopt.getopt(sys.argv[1:], "i:")
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except Exception,e:
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show_usage()
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iterations = 1000000
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try:
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for (arg,val) in args:
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if arg == "-i":
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iterations = int(val)
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except Exception,e:
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show_usage()
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# If no libraries were specifically named, just run the test against
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# the default system libGL.
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if len(trail) == 0:
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trail.append(None)
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result_array = []
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names = []
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for lib in trail:
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s = make_execution_string( lib, iterations )
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r = results()
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r.process_file( os.popen(s) )
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names.append(lib)
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result_array.append(r)
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# If the test was only run against one library, just show the results
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# of the test run. Otherwise, compare each successive run against
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# the first run.
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if len( result_array ) == 1:
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result_array[0].show_results()
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else:
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for i in range(1, len( result_array )):
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print "%s vs. %s" % (names[0], names[i])
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result_array[0].compare_results( result_array[i] )
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print ""
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