1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
#!/usr/bin/env python2
# (C) Copyright IBM Corporation 2004
# All Rights Reserved.
#
# 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
# on the rights to use, copy, modify, merge, publish, distribute, sub
# license, 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 (including the next
# paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
# IBM AND/OR ITS SUPPLIERS 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.
#
# Authors:
# Ian Romanick <idr@us.ibm.com>
# This script is used to run api_speed against several different libGL
# libraries and compare the results. See the show_usage function for more
# details on how to use it.
import re, os, sys, getopt
class results:
def process_file(self, f):
self.cycles = {}
self.iterations = -1
for line in f.readlines():
m = re.match("(\d+) calls to (.{20}) required (\d+) cycles.", line)
if self.iterations != -1 and int(m.group(1)) != self.iterations:
raise
# This could be done with lstrip, but the version of
# the Python library on my system doesn't have it.
# The installed version of Python is quite old. :(
temp = m.group(2)
function_name = None
for i in range(len(temp)):
if temp[i] != ' ':
function_name = temp[i:]
break
if function_name == None:
raise
self.cycles[ function_name ] = int(m.group(3))
self.iterations = int(m.group(1))
def show_results(self):
for name in self.cycles:
print "%s -> %f" % (name, float(self.cycles[name]) / self.iterations)
def compare_results(self, other):
for name in self.cycles:
if other.cycles.has_key(name):
a = float(self.cycles[name]) / self.iterations
b = float(other.cycles[name]) / other.iterations
p = (100.0 * b / a) - 100.0
print "%- 20s %7.2f - %7.2f = % -6.2f (%+.1f%%)" % (name, a, b, a - b, p)
return
def make_execution_string(lib, iterations):
if lib == None:
return "./api_speed %u" % (iterations)
else:
return "LD_PRELOAD=%s ./api_speed %u" % (lib, iterations)
def show_usage():
print """Usage: %s [-i iterations] {library ...}
The full path to one or more libGL libraries (including the full name of the
library) can be included on the command-line. Each library will be tested,
and the results compared. The first library listed will be used as the
"base line" for all comparisons.""" % (sys.argv[0])
sys.exit(1)
if __name__ == '__main__':
try:
(args, trail) = getopt.getopt(sys.argv[1:], "i:")
except Exception,e:
show_usage()
iterations = 1000000
try:
for (arg,val) in args:
if arg == "-i":
iterations = int(val)
except Exception,e:
show_usage()
# If no libraries were specifically named, just run the test against
# the default system libGL.
if len(trail) == 0:
trail.append(None)
result_array = []
names = []
for lib in trail:
s = make_execution_string( lib, iterations )
r = results()
r.process_file( os.popen(s) )
names.append(lib)
result_array.append(r)
# If the test was only run against one library, just show the results
# of the test run. Otherwise, compare each successive run against
# the first run.
if len( result_array ) == 1:
result_array[0].show_results()
else:
for i in range(1, len( result_array )):
print "%s vs. %s" % (names[0], names[i])
result_array[0].compare_results( result_array[i] )
print ""
|
