-
-
Notifications
You must be signed in to change notification settings - Fork 566
/
bench.py
660 lines (561 loc) · 20.1 KB
/
bench.py
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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
import sys, string, time, copy, gc
from itertools import *
from StringIO import StringIO
TREE_FACTOR = 1 # increase tree size with '-l / '-L' cmd option
_TEXT = "some ASCII text" * 10 * TREE_FACTOR
_UTEXT = u"some klingon: \F8D2" * 10 * TREE_FACTOR
_ATTRIBUTES = {
'{attr}test1' : _UTEXT,
'{attr}test2' : _UTEXT,
'bla1' : _TEXT,
'bla2' : _TEXT,
'bla3' : _TEXT
}
def with_attributes(use_attributes):
"Decorator for benchmarks that use attributes"
value = {False : 0, True : 1}[ bool(use_attributes) ]
def set_value(function):
try:
function.ATTRIBUTES.add(value)
except AttributeError:
function.ATTRIBUTES = set([value])
return function
return set_value
def with_text(no_text=False, text=False, utext=False):
"Decorator for benchmarks that use text"
values = []
if no_text:
values.append(0)
if text:
values.append(1)
if utext:
values.append(2)
def set_value(function):
try:
function.TEXT.add(values)
except AttributeError:
function.TEXT = set(values)
return function
return set_value
def onlylib(*libs):
def set_libs(function):
if libs:
function.LIBS = libs
return function
return set_libs
class BenchMarkBase(object):
atoz = string.ascii_lowercase
_LIB_NAME_MAP = {
'etree' : 'lxe',
'ElementTree' : 'ET',
'cElementTree' : 'cET'
}
def __init__(self, etree):
self.etree = etree
libname = etree.__name__.split('.')[-1]
self.lib_name = self._LIB_NAME_MAP.get(libname, libname)
if libname == 'etree':
deepcopy = copy.deepcopy
def set_property(root, fname):
setattr(self, fname, lambda : deepcopy(root))
else:
def set_property(root, fname):
setattr(self, fname, self.et_make_factory(root))
attribute_list = list(izip(count(), ({}, _ATTRIBUTES)))
text_list = list(izip(count(), (None, _TEXT, _UTEXT)))
build_name = self._tree_builder_name
self.setup_times = []
for tree in self._all_trees():
times = []
self.setup_times.append(times)
setup = getattr(self, '_setup_tree%d' % tree)
for an, attributes in attribute_list:
for tn, text in text_list:
root, t = setup(text, attributes)
times.append(t)
set_property(root, build_name(tree, tn, an))
def _tree_builder_name(self, tree, tn, an):
return '_root%d_T%d_A%d' % (tree, tn, an)
def tree_builder(self, tree, tn, an):
return getattr(self, self._tree_builder_name(tree, tn, an))
def et_make_factory(self, elem):
def generate_elem(append, elem, level):
var = "e" + str(level)
arg = repr(elem.tag)
if elem.attrib:
arg += ", **%r" % elem.attrib
if level == 1:
append(" e1 = Element(%s)" % arg)
else:
append(" %s = SubElement(e%d, %s)" % (var, level-1, arg))
if elem.text:
append(" %s.text = %r" % (var, elem.text))
if elem.tail:
append(" %s.tail = %r" % (var, elem.tail))
for e in elem:
generate_elem(append, e, level+1)
# generate code for a function that creates a tree
output = ["def element_factory():"]
generate_elem(output.append, elem, 1)
output.append(" return e1")
# setup global function namespace
namespace = {
"Element" : self.etree.Element,
"SubElement" : self.etree.SubElement
}
# create function object
exec "\n".join(output) in namespace
return namespace["element_factory"]
def _all_trees(self):
all_trees = []
for name in dir(self):
if name.startswith('_setup_tree'):
all_trees.append(int(name[11:]))
return all_trees
def _setup_tree1(self, text, attributes):
"tree with 26 2nd level and 520 * TREE_FACTOR 3rd level children"
atoz = self.atoz
SubElement = self.etree.SubElement
current_time = time.time
t = current_time()
root = self.etree.Element('{abc}rootnode')
for ch1 in atoz:
el = SubElement(root, "{bcd}"+ch1*5, attributes)
for ch2 in atoz:
for i in range(20 * TREE_FACTOR):
SubElement(el, "{cdefg}%s%05d" % (ch2, i))
t = current_time() - t
return (root, t)
def _setup_tree2(self, text, attributes):
"tree with 520 * TREE_FACTOR 2nd level and 26 3rd level children"
atoz = self.atoz
SubElement = self.etree.SubElement
current_time = time.time
t = current_time()
root = self.etree.Element('{abc}rootnode')
for ch1 in atoz:
for i in range(20 * TREE_FACTOR):
el = SubElement(root, "{bcd}"+ch1*5, attributes)
for ch2 in atoz:
SubElement(el, "{cdefg}%s%05d" % (ch2, i))
t = current_time() - t
return (root, t)
def _setup_tree3(self, text, attributes):
"tree of depth 8 + TREE_FACTOR with 3 children per node"
SubElement = self.etree.SubElement
current_time = time.time
t = current_time()
root = self.etree.Element('{abc}rootnode')
children = [root]
for i in range(6 + TREE_FACTOR):
tag_no = count().next
children = [ SubElement(c, "{bcd}a%05d" % i, attributes)
for i,c in enumerate(chain(children, children, children)) ]
t = current_time() - t
return (root, t)
def _setup_tree4(self, text, attributes):
"small tree with 26 2nd level and 2 3rd level children"
atoz = self.atoz
SubElement = self.etree.SubElement
current_time = time.time
t = current_time()
root = self.etree.Element('{abc}rootnode')
children = [root]
for ch1 in atoz:
el = SubElement(root, "{bcd}"+ch1*5, attributes)
SubElement(el, "{cdefg}abcde", attributes)
SubElement(el, "{cdefg}bcdef", attributes)
t = current_time() - t
return (root, t)
def benchmarks(self):
"""Returns a list of all benchmarks.
A benchmark is a tuple containing a method name and a list of tree
numbers. Trees are prepared by the setup function.
"""
all_trees = self._all_trees()
benchmarks = []
for name in dir(self):
if not name.startswith('bench_'):
continue
method = getattr(self, name)
if hasattr(method, 'LIBS') and self.lib_name not in method.LIBS:
benchmarks.append((name, None, (), 0, 0))
continue
if method.__doc__:
tree_sets = method.__doc__.split()
else:
tree_sets = ()
if tree_sets:
tree_tuples = [ map(int, tree_set.split(','))
for tree_set in tree_sets ]
else:
try:
function = getattr(method, 'im_func', method)
arg_count = method.func_code.co_argcount - 1
except AttributeError:
arg_count = 1
tree_tuples = self._permutations(all_trees, arg_count)
for tree_tuple in tree_tuples:
for tn in sorted(getattr(method, 'TEXT', (0,))):
for an in sorted(getattr(method, 'ATTRIBUTES', (0,))):
benchmarks.append((name, method, tree_tuple, tn, an))
return benchmarks
def _permutations(self, seq, count):
def _permutations(prefix, remainder, count):
if count == 0:
return [ prefix[:] ]
count -= 1
perms = []
prefix.append(None)
for pos, el in enumerate(remainder):
new_remainder = remainder[:pos] + remainder[pos+1:]
prefix[-1] = el
perms.extend( _permutations(prefix, new_remainder, count) )
prefix.pop()
return perms
return _permutations([], seq, count)
############################################################
# Benchmarks
############################################################
class BenchMark(BenchMarkBase):
def bench_iter_children(self, root):
for child in root:
pass
def bench_iter_children_reversed(self, root):
for child in reversed(root):
pass
@with_attributes(True)
@with_attributes(False)
@with_text(text=True, utext=True)
def bench_tostring_utf8(self, root):
self.etree.tostring(root, 'UTF-8')
@with_attributes(True)
@with_attributes(False)
@with_text(text=True, utext=True)
def bench_tostring_utf16(self, root):
self.etree.tostring(root, 'UTF-16')
@with_attributes(True)
@with_attributes(False)
@with_text(text=True, utext=True)
def bench_tostring_utf8_unicode_XML(self, root):
xml = unicode(self.etree.tostring(root, 'UTF-8'), 'UTF-8')
open("test%03d.txt" % len(root), 'w').write(xml.encode('UTF-8'))
self.etree.XML(xml)
@with_attributes(True)
@with_attributes(False)
@with_text(text=True, utext=True)
def bench_write_utf8_parse_stringIO(self, root):
f = StringIO()
self.etree.ElementTree(root).write(f, 'UTF-8')
f.seek(0)
self.etree.parse(f)
def bench_append_from_document(self, root1, root2):
# == "1,2 2,3 1,3 3,1 3,2 2,1" # trees 1 and 2, or 2 and 3, or ...
for el in root2:
root1.append(el)
def bench_insert_from_document(self, root1, root2):
for el in root2:
root1.insert(len(root1)/2, el)
def bench_rotate_children(self, root):
# == "1 2 3" # runs on any single tree independently
for i in range(100):
el = root[0]
del root[0]
root.append(el)
def bench_reorder(self, root):
for i in range(1,len(root)/2):
el = root[0]
del root[0]
root[-i:-i] = [ el ]
def bench_reorder_slice(self, root):
for i in range(1,len(root)/2):
els = root[0:1]
del root[0]
root[-i:-i] = els
def bench_clear(self, root):
root.clear()
def bench_has_children(self, root):
for child in root:
if child and child and child and child and child:
pass
def bench_len(self, root):
for child in root:
map(len, repeat(child, 20))
def bench_create_subelements(self, root):
SubElement = self.etree.SubElement
for child in root:
SubElement(child, '{test}test')
def bench_append_elements(self, root):
Element = self.etree.Element
for child in root:
el = Element('{test}test')
child.append(el)
def bench_makeelement(self, root):
Element = self.etree.Element
empty_attrib = {}
for child in root:
child.makeelement('{test}test', empty_attrib)
def bench_replace_children(self, root):
Element = self.etree.Element
for child in root:
el = Element('{test}test')
child[:] = [el]
def bench_remove_children(self, root):
for child in root:
root.remove(child)
def bench_remove_children_reversed(self, root):
for child in reversed(root[:]):
root.remove(child)
def bench_set_attributes(self, root):
for child in root:
child.set('a', 'bla')
@with_attributes(True)
def bench_get_attributes(self, root):
for child in root:
child.set('a', 'bla')
for child in root:
child.get('a')
def bench_setget_attributes(self, root):
for child in root:
child.set('a', 'bla')
for child in root:
child.get('a')
def bench_getchildren(self, root):
for child in root:
child.getchildren()
def bench_get_children_slice(self, root):
for child in root:
child[:]
def bench_get_children_slice_2x(self, root):
for child in root:
children = child[:]
child[:]
def bench_deepcopy(self, root):
for child in root:
copy.deepcopy(child)
def bench_tag(self, root):
for child in root:
child.tag
def bench_tag_repeat(self, root):
for child in root:
for i in repeat(0, 100):
child.tag
@with_text(utext=True, text=True, no_text=True)
def bench_text(self, root):
for child in root:
child.text
@with_text(utext=True, text=True, no_text=True)
def bench_text_repeat(self, root):
repeat = range(500)
for child in root:
for i in repeat:
child.text
def bench_index(self, root):
for child in root:
root.index(child)
def bench_index_slice(self, root):
for child in root[5:100]:
root.index(child, 5, 100)
def bench_index_slice_neg(self, root):
for child in root[-100:-5]:
root.index(child, start=-100, stop=-5)
def bench_getiterator(self, root):
list(islice(root.getiterator(), 10, 110))
def bench_getiterator_tag(self, root):
list(islice(root.getiterator("{b}a"), 3, 10))
def bench_getiterator_tag_all(self, root):
list(root.getiterator("{b}a"))
@onlylib('lxe')
def bench_xpath_class(self, root):
xpath = self.etree.XPath("./*[0]")
for child in root:
xpath(child)
@onlylib('lxe')
def bench_xpath_element(self, root):
for child in root:
xpath = self.etree.XPathElementEvaluator(child)
xpath.evaluate("./*[0]")
@onlylib('lxe')
def bench_xpath_extensions_old(self, root):
def return_child(_, element):
if element:
return element[0]
else:
return ()
extensions = {None : {'child' : return_child}}
xpath = self.etree.XPath("child(.)", extensions=extensions)
for child in root:
xpath(child)
@onlylib('lxe')
def bench_xslt_extensions_old(self, root):
tree = self.etree.XML("""\
<xsl:stylesheet version="1.0"
xmlns:l="test"
xmlns:testns="testns"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<l:data>TEST</l:data>
<xsl:template match="/">
<l:result>
<xsl:for-each select="*/*">
<xsl:copy-of select="testns:child(.)"/>
</xsl:for-each>
</l:result>
</xsl:template>
</xsl:stylesheet>
""")
def return_child(_, elements):
return elements[0][0]
extensions = {'testns' : {'child' : return_child}}
transform = self.etree.XSLT(tree, extensions)
for i in range(10):
transform(root)
@onlylib('lxe')
def bench_xslt_document(self, root):
transform = self.etree.XSLT(self.etree.XML("""\
<xsl:stylesheet version="1.0"
xmlns:l="test"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<l:data>TEST</l:data>
<xsl:template match="/">
<l:result>
<xsl:for-each select="*/*">
<l:test><xsl:copy-of select="document('')//l:data/text()"/></l:test>
</xsl:for-each>
</l:result>
</xsl:template>
</xsl:stylesheet>
"""))
transform(root)
############################################################
# Main program
############################################################
if __name__ == '__main__':
import_lxml = True
callgrind_zero = False
if len(sys.argv) > 1:
try:
sys.argv.remove('-i')
# run benchmark 'inplace'
sys.path.insert(0, 'src')
except ValueError:
pass
try:
sys.argv.remove('-nolxml')
# run without lxml
import_lxml = False
except ValueError:
pass
try:
sys.argv.remove('-z')
# reset callgrind after tree setup
callgrind_zero = True
except ValueError:
pass
try:
sys.argv.remove('-l')
# use large trees
TREE_FACTOR *= 2
except ValueError:
pass
try:
sys.argv.remove('-L')
# use LARGE trees
TREE_FACTOR *= 2
except ValueError:
pass
_etrees = []
if import_lxml:
from lxml import etree
_etrees.append(etree)
if len(sys.argv) > 1:
if '-a' in sys.argv or '-c' in sys.argv:
# 'all' or 'C-implementations' ?
try:
import cElementTree as cET
_etrees.append(cET)
except ImportError:
pass
if '-a' in sys.argv:
# 'all' ?
try:
from elementtree import ElementTree as ET
_etrees.append(ET)
except ImportError:
pass
if not _etrees:
print "No library to test. Exiting."
sys.exit(1)
print "Preparing test suites and trees ..."
benchmark_suites = map(BenchMark, _etrees)
# sorted by name and tree tuple
benchmarks = [ sorted(b.benchmarks()) for b in benchmark_suites ]
if len(sys.argv) > 1:
selected = []
for name in sys.argv[1:]:
if not name.startswith('bench_'):
name = 'bench_' + name
selected.append(name)
benchmarks = [ [ b for b in bs
if [ match for match in selected
if match in b[0] ] ]
for bs in benchmarks ]
import time
def run_bench(suite, method_name, method_call, tree_set, tn, an):
current_time = time.time
call_repeat = range(10)
tree_builders = [ suite.tree_builder(tree, tn, an)
for tree in tree_set ]
times = []
args = ()
for i in range(3):
gc.collect()
gc.disable()
t = 0
for i in call_repeat:
args = [ build() for build in tree_builders ]
t_one_call = current_time()
method_call(*args)
t += current_time() - t_one_call
t = 1000.0 * t / len(call_repeat)
times.append(t)
gc.enable()
del args
return times
def build_treeset_name(trees, tn, an):
text = {0:'-', 1:'S', 2:'U'}[tn]
attr = {0:'-', 1:'A'}[an]
return "%s%s T%s" % (text, attr, ',T'.join(imap(str, trees))[:6])
print "Running benchmark on", ', '.join(b.lib_name
for b in benchmark_suites)
print
print "Setup times for trees in seconds:"
for b in benchmark_suites:
print "%-3s: " % b.lib_name,
for an in (0,1):
for tn in (0,1,2):
print ' %s ' % build_treeset_name((), tn, an)[:2],
print
for i, tree_times in enumerate(b.setup_times):
print " T%d:" % (i+1), ' '.join("%6.4f" % t for t in tree_times)
print
if callgrind_zero:
cmd = open("callgrind.cmd", 'w')
cmd.write('Zero\n')
cmd.close()
for bench_calls in izip(*benchmarks):
for lib, (bench, benchmark_setup) in enumerate(izip(benchmark_suites, bench_calls)):
bench_name, method_call = benchmark_setup[:2]
tree_set_name = build_treeset_name(*benchmark_setup[-3:])
print "%-3s: %-28s" % (bench.lib_name, bench_name[6:34]),
if method_call is None:
print "skipped"
continue
print "(%-10s)" % tree_set_name,
sys.stdout.flush()
result = run_bench(bench, *benchmark_setup)
print "%9.4f msec/pass, best of (" % min(result),
for t in result:
print "%9.4f" % t,
print ")"
if len(benchmark_suites) > 1:
print # empty line between different benchmarks