/usr/lib/python2.7/dist-packages/cherrypy/lib/profiler.py is in python-cherrypy 2.3.0-5.
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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 | """Profiler tools for CherryPy.
CherryPy users
==============
You can profile any of your pages as follows:
from cherrypy.lib import profile
class Root:
p = profile.Profiler("/path/to/profile/dir")
def index(self):
self.p.run(self._index)
index.exposed = True
def _index(self):
return "Hello, world!"
cherrypy.root = Root()
CherryPy developers
===================
This module can be used whenever you make changes to CherryPy, to get a
quick sanity-check on overall CP performance. Set the config entry:
"profiling.on = True" to turn on profiling. Then, use the serve()
function to browse the results in a web browser. If you run this
module from the command line, it will call serve() for you.
"""
# Make profiler output more readable by adding __init__ modules' parents.
def new_func_strip_path(func_name):
filename, line, name = func_name
if filename.endswith("__init__.py"):
return os.path.basename(filename[:-12]) + filename[-12:], line, name
return os.path.basename(filename), line, name
try:
import profile
import pstats
pstats.func_strip_path = new_func_strip_path
except ImportError:
profile = None
pstats = None
#import warnings
#msg = ("Your installation of Python doesn't have a profile module. "
# "If you're on Debian, you can apt-get python2.4-profiler from "
# "non-free in a separate step. See http://www.cherrypy.org/wiki/"
# "ProfilingOnDebian for details.")
#warnings.warn(msg)
import os, os.path
import sys
try:
import cStringIO as StringIO
except ImportError:
import StringIO
class Profiler(object):
def __init__(self, path=None):
if not path:
path = os.path.join(os.path.dirname(__file__), "profile")
self.path = path
if not os.path.exists(path):
os.makedirs(path)
self.count = 0
def run(self, func, *args):
"""run(func, *args). Run func, dumping profile data into self.path."""
self.count += 1
path = os.path.join(self.path, "cp_%04d.prof" % self.count)
prof = profile.Profile()
prof.runcall(func, *args)
prof.dump_stats(path)
def statfiles(self):
"""statfiles() -> list of available profiles."""
return [f for f in os.listdir(self.path)
if f.startswith("cp_") and f.endswith(".prof")]
def stats(self, filename, sortby='cumulative'):
"""stats(index) -> output of print_stats() for the given profile."""
s = pstats.Stats(os.path.join(self.path, filename))
s.strip_dirs()
s.sort_stats(sortby)
oldout = sys.stdout
try:
sys.stdout = sio = StringIO.StringIO()
s.print_stats()
finally:
sys.stdout = oldout
response = sio.getvalue()
sio.close()
return response
def index(self):
return """<html>
<head><title>CherryPy profile data</title></head>
<frameset cols='200, 1*'>
<frame src='menu' />
<frame name='main' src='' />
</frameset>
</html>
"""
index.exposed = True
def menu(self):
yield "<h2>Profiling runs</h2>"
yield "<p>Click on one of the runs below to see profiling data.</p>"
runs = self.statfiles()
runs.sort()
for i in runs:
yield "<a href='report?filename=%s' target='main'>%s</a><br />" % (i, i)
menu.exposed = True
def report(self, filename):
import cherrypy
cherrypy.response.headers['Content-Type'] = 'text/plain'
return self.stats(filename)
report.exposed = True
def serve(path=None, port=8080):
import cherrypy
cherrypy.root = Profiler(path)
cherrypy.config.update({'server.socket_port': int(port),
'server.thread_pool': 10,
'server.environment': "production",
'session.storageType': "ram",
})
cherrypy.server.start()
if __name__ == "__main__":
serve(*tuple(sys.argv[1:]))
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