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#!/usr/bin/env python
#
# A simple benchmark of tornado template rendering, based on
# https://github.com/mitsuhiko/jinja2/blob/master/examples/bench.py
import sys
from timeit import Timer
from tornado.options import options, define, parse_command_line
from tornado.template import Template
define('num', default=100, help='number of iterations')
define('dump', default=False, help='print template generated code and exit')
context = {
'page_title': 'mitsuhiko\'s benchmark',
'table': [dict(a=1,b=2,c=3,d=4,e=5,f=6,g=7,h=8,i=9,j=10) for x in range(1000)]
}
tmpl = Template("""\
<!doctype html>
<html>
<head>
<title>{{ page_title }}</title>
</head>
<body>
<div class="header">
<h1>{{ page_title }}</h1>
</div>
<ul class="navigation">
{% for href, caption in [ \
('index.html', 'Index'), \
('downloads.html', 'Downloads'), \
('products.html', 'Products') \
] %}
<li><a href="{{ href }}">{{ caption }}</a></li>
{% end %}
</ul>
<div class="table">
<table>
{% for row in table %}
<tr>
{% for cell in row %}
<td>{{ cell }}</td>
{% end %}
</tr>
{% end %}
</table>
</div>
</body>
</html>\
""")
def render():
tmpl.generate(**context)
def main():
parse_command_line()
if options.dump:
print tmpl.code
sys.exit(0)
t = Timer(render)
results = t.timeit(options.num) / options.num
print '%0.3f ms per iteration' % (results*1000)
if __name__ == '__main__':
main()
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