[perf-test] Make query-selector-last.html more realistic
https://bugs.webkit.org/show_bug.cgi?id=88203
Reviewed by Ryosuke Niwa.
query-selector-last.html tests querySelector() for an element
that appears after 1000 div elements, all of which have the same
id and class. To test the performance of querySelector() under
a lot of ids and classes, we should make the ids and classes of
the 1000 elements different.
This patch degrades the performance of query-selector-last.html
by 3.6%.
[Before]
RESULT Parser: query-selector-last= 476.
382274152 runs/s
median= 476.
821192053 runs/s, stdev= 1.
14578875814 runs/s, min= 474.
308300395 runs/s, max= 478.
087649402 runs/s
RESULT Parser: query-selector-last= 478.
423061861 runs/s
median= 478.
723404255 runs/s, stdev= 1.
54876867255 runs/s, min= 473.
684210526 runs/s, max= 481.
347773767 runs/s
RESULT Parser: query-selector-last= 479.
849287174 runs/s
median= 480.0 runs/s, stdev= 1.
69849752498 runs/s, min= 475.
561426684 runs/s, max= 481.
927710843 runs/s
RESULT Parser: query-selector-last= 476.
765438846 runs/s
median= 477.
453580902 runs/s, stdev= 1.
8724488664 runs/s, min= 471.
821756225 runs/s, max= 478.
723404255 runs/s
RESULT Parser: query-selector-last= 481.
715340644 runs/s
median= 481.
637742305 runs/s, stdev= 1.
81446361145 runs/s, min= 475.
561426684 runs/s, max= 483.
675937122 runs/s
[After]
RESULT Parser: query-selector-last= 458.
866623582 runs/s
median= 459.
183673469 runs/s, stdev= 1.
48881464737 runs/s, min= 453.
972257251 runs/s, max= 460.
947503201 runs/s
RESULT Parser: query-selector-last= 460.
363532897 runs/s
median= 460.
358056266 runs/s, stdev= 1.
58512056995 runs/s, min= 456.
273764259 runs/s, max= 462.
130937099 runs/s
RESULT Parser: query-selector-last= 457.
727448451 runs/s
median= 458.
015267176 runs/s, stdev= 1.
23681915516 runs/s, min= 453.
972257251 runs/s, max= 459.
183673469 runs/s
RESULT Parser: query-selector-last= 465.
57336853 runs/s
median= 465.
717981889 runs/s, stdev= 1.
6616925374 runs/s, min= 460.
947503201 runs/s, max= 467.
532467532 runs/s
RESULT Parser: query-selector-last= 459.
836252019 runs/s
median= 459.
770114943 runs/s, stdev= 1.
84485630505 runs/s, min= 455.
696202532 runs/s, max= 462.
724935733 runs/s
* Parser/query-selector-last.html:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@119366
268f45cc-cd09-0410-ab3c-
d52691b4dbfc