--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django_extensions/management/commands/runprofileserver.py Wed Jan 20 12:37:40 2010 +0100
@@ -0,0 +1,213 @@
+"""
+runprofileserver.py
+
+ Starts a lightweight Web server with profiling enabled.
+
+Credits for kcachegrind support taken from lsprofcalltree.py go to:
+ David Allouche
+ Jp Calderone & Itamar Shtull-Trauring
+ Johan Dahlin
+"""
+
+from django.core.management.base import BaseCommand, CommandError
+from optparse import make_option
+import os
+import sys
+
+def label(code):
+ if isinstance(code, str):
+ return ('~', 0, code) # built-in functions ('~' sorts at the end)
+ else:
+ return '%s %s:%d' % (code.co_name,
+ code.co_filename,
+ code.co_firstlineno)
+
+class KCacheGrind(object):
+ def __init__(self, profiler):
+ self.data = profiler.getstats()
+ self.out_file = None
+
+ def output(self, out_file):
+ self.out_file = out_file
+ print >> out_file, 'events: Ticks'
+ self._print_summary()
+ for entry in self.data:
+ self._entry(entry)
+
+ def _print_summary(self):
+ max_cost = 0
+ for entry in self.data:
+ totaltime = int(entry.totaltime * 1000)
+ max_cost = max(max_cost, totaltime)
+ print >> self.out_file, 'summary: %d' % (max_cost,)
+
+ def _entry(self, entry):
+ out_file = self.out_file
+
+ code = entry.code
+ #print >> out_file, 'ob=%s' % (code.co_filename,)
+ if isinstance(code, str):
+ print >> out_file, 'fi=~'
+ else:
+ print >> out_file, 'fi=%s' % (code.co_filename,)
+ print >> out_file, 'fn=%s' % (label(code),)
+
+ inlinetime = int(entry.inlinetime * 1000)
+ if isinstance(code, str):
+ print >> out_file, '0 ', inlinetime
+ else:
+ print >> out_file, '%d %d' % (code.co_firstlineno, inlinetime)
+
+ # recursive calls are counted in entry.calls
+ if entry.calls:
+ calls = entry.calls
+ else:
+ calls = []
+
+ if isinstance(code, str):
+ lineno = 0
+ else:
+ lineno = code.co_firstlineno
+
+ for subentry in calls:
+ self._subentry(lineno, subentry)
+ print >> out_file
+
+ def _subentry(self, lineno, subentry):
+ out_file = self.out_file
+ code = subentry.code
+ #print >> out_file, 'cob=%s' % (code.co_filename,)
+ print >> out_file, 'cfn=%s' % (label(code),)
+ if isinstance(code, str):
+ print >> out_file, 'cfi=~'
+ print >> out_file, 'calls=%d 0' % (subentry.callcount,)
+ else:
+ print >> out_file, 'cfi=%s' % (code.co_filename,)
+ print >> out_file, 'calls=%d %d' % (
+ subentry.callcount, code.co_firstlineno)
+
+ totaltime = int(subentry.totaltime * 1000)
+ print >> out_file, '%d %d' % (lineno, totaltime)
+
+class Command(BaseCommand):
+ option_list = BaseCommand.option_list + (
+ make_option('--noreload', action='store_false', dest='use_reloader', default=True,
+ help='Tells Django to NOT use the auto-reloader.'),
+ make_option('--adminmedia', dest='admin_media_path', default='',
+ help='Specifies the directory from which to serve admin media.'),
+ make_option('--prof-path', dest='prof_path', default='/tmp',
+ help='Specifies the directory which to save profile information in.'),
+ make_option('--nomedia', action='store_true', dest='no_media', default=False,
+ help='Do not profile MEDIA_URL and ADMIN_MEDIA_URL'),
+ make_option('--use-cprofile', action='store_true', dest='use_cprofile', default=False,
+ help='Use cProfile if available, this is disabled per default because of incompatibilities.'),
+ make_option('--kcachegrind', action='store_true', dest='use_lsprof', default=False,
+ help='Create kcachegrind compatible lsprof files, this requires and automatically enables cProfile.'),
+ )
+ help = "Starts a lightweight Web server with profiling enabled."
+ args = '[optional port number, or ipaddr:port]'
+
+ # Validation is called explicitly each time the server is reloaded.
+ requires_model_validation = False
+
+ def handle(self, addrport='', *args, **options):
+ import django
+ from django.core.servers.basehttp import run, AdminMediaHandler, WSGIServerException
+ from django.core.handlers.wsgi import WSGIHandler
+ if args:
+ raise CommandError('Usage is runserver %s' % self.args)
+ if not addrport:
+ addr = ''
+ port = '8000'
+ else:
+ try:
+ addr, port = addrport.split(':')
+ except ValueError:
+ addr, port = '', addrport
+ if not addr:
+ addr = '127.0.0.1'
+
+ if not port.isdigit():
+ raise CommandError("%r is not a valid port number." % port)
+
+ use_reloader = options.get('use_reloader', True)
+ admin_media_path = options.get('admin_media_path', '')
+ shutdown_message = options.get('shutdown_message', '')
+ no_media = options.get('no_media', False)
+ quit_command = (sys.platform == 'win32') and 'CTRL-BREAK' or 'CONTROL-C'
+
+ def inner_run():
+ from django.conf import settings
+
+ import hotshot, time, os
+ USE_CPROFILE = options.get('use_cprofile', False)
+ USE_LSPROF = options.get('use_lsprof', False)
+ if USE_LSPROF:
+ USE_CPROFILE = True
+ if USE_CPROFILE:
+ try:
+ import cProfile
+ USE_CPROFILE = True
+ except ImportError:
+ print "cProfile disabled, module cannot be imported!"
+ USE_CPROFILE = False
+ if USE_LSPROF and not USE_CPROFILE:
+ raise SystemExit("Kcachegrind compatible output format required cProfile from Python 2.5")
+ prof_path = options.get('prof_path', '/tmp')
+ def make_profiler_handler(inner_handler):
+ def handler(environ, start_response):
+ path_info = environ['PATH_INFO']
+ # normally /media/ is MEDIA_URL, but in case still check it in case it's differently
+ # should be hardly a penalty since it's an OR expression.
+ # TODO: fix this to check the configuration settings and not make assumpsions about where media are on the url
+ if no_media and (path_info.startswith('/media') or path_info.startswith(settings.MEDIA_URL)):
+ return inner_handler(environ, start_response)
+ path_name = path_info.strip("/").replace('/', '.') or "root"
+ profname = "%s.%.3f.prof" % (path_name, time.time())
+ profname = os.path.join(prof_path, profname)
+ if USE_CPROFILE:
+ prof = cProfile.Profile()
+ else:
+ prof = hotshot.Profile(profname)
+ try:
+ return prof.runcall(inner_handler, environ, start_response)
+ finally:
+ if USE_LSPROF:
+ kg = KCacheGrind(prof)
+ kg.output(file(profname, 'w'))
+ elif USE_CPROFILE:
+ prof.dump_stats(profname)
+ return handler
+
+ print "Validating models..."
+ self.validate(display_num_errors=True)
+ print "\nDjango version %s, using settings %r" % (django.get_version(), settings.SETTINGS_MODULE)
+ print "Development server is running at http://%s:%s/" % (addr, port)
+ print "Quit the server with %s." % quit_command
+ try:
+ path = admin_media_path or django.__path__[0] + '/contrib/admin/media'
+ handler = make_profiler_handler(AdminMediaHandler(WSGIHandler(), path))
+ run(addr, int(port), handler)
+ except WSGIServerException, e:
+ # Use helpful error messages instead of ugly tracebacks.
+ ERRORS = {
+ 13: "You don't have permission to access that port.",
+ 98: "That port is already in use.",
+ 99: "That IP address can't be assigned-to.",
+ }
+ try:
+ error_text = ERRORS[e.args[0].args[0]]
+ except (AttributeError, KeyError):
+ error_text = str(e)
+ sys.stderr.write(self.style.ERROR("Error: %s" % error_text) + '\n')
+ # Need to use an OS exit because sys.exit doesn't work in a thread
+ os._exit(1)
+ except KeyboardInterrupt:
+ if shutdown_message:
+ print shutdown_message
+ sys.exit(0)
+ if use_reloader:
+ from django.utils import autoreload
+ autoreload.main(inner_run)
+ else:
+ inner_run()