/usr/lib/python2.7/dist-packages/debug_toolbar/panels/profiling.py is in python-django-debug-toolbar 1:1.0.1-0+nmu1.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | from __future__ import absolute_import, division, unicode_literals
from django.utils.translation import ugettext_lazy as _
from django.utils.safestring import mark_safe
from debug_toolbar.panels import Panel
import cProfile
from pstats import Stats
from colorsys import hsv_to_rgb
import os
class DjangoDebugToolbarStats(Stats):
__root = None
def get_root_func(self):
if self.__root is None:
for func, (cc, nc, tt, ct, callers) in self.stats.items():
if len(callers) == 0:
self.__root = func
break
return self.__root
class FunctionCall(object):
def __init__(self, statobj, func, depth=0, stats=None,
id=0, parent_ids=[], hsv=(0, 0.5, 1)):
self.statobj = statobj
self.func = func
if stats:
self.stats = stats
else:
self.stats = statobj.stats[func][:4]
self.depth = depth
self.id = id
self.parent_ids = parent_ids
self.hsv = hsv
def parent_classes(self):
return self.parent_classes
def background(self):
r, g, b = hsv_to_rgb(*self.hsv)
return 'rgb(%f%%,%f%%,%f%%)' % (r * 100, g * 100, b * 100)
def func_std_string(self): # match what old profile produced
func_name = self.func
if func_name[:2] == ('~', 0):
# special case for built-in functions
name = func_name[2]
if name.startswith('<') and name.endswith('>'):
return '{%s}' % name[1:-1]
else:
return name
else:
file_name, line_num, method = self.func
idx = file_name.find('/site-packages/')
if idx > -1:
file_name = file_name[(idx + 14):]
file_path, file_name = file_name.rsplit(os.sep, 1)
return mark_safe(
'<span class="path">{0}/</span>'
'<span class="file">{1}</span>'
' in <span class="func">{3}</span>'
'(<span class="lineno">{2}</span>)'.format(
file_path,
file_name,
line_num,
method))
def subfuncs(self):
i = 0
h, s, v = self.hsv
count = len(self.statobj.all_callees[self.func])
for func, stats in self.statobj.all_callees[self.func].items():
i += 1
h1 = h + (i / count) / (self.depth + 1)
if stats[3] == 0:
s1 = 0
else:
s1 = s * (stats[3] / self.stats[3])
yield FunctionCall(self.statobj,
func,
self.depth + 1,
stats=stats,
id=str(self.id) + '_' + str(i),
parent_ids=self.parent_ids + [self.id],
hsv=(h1, s1, 1))
def count(self):
return self.stats[1]
def tottime(self):
return self.stats[2]
def cumtime(self):
cc, nc, tt, ct = self.stats
return self.stats[3]
def tottime_per_call(self):
cc, nc, tt, ct = self.stats
if nc == 0:
return 0
return tt / nc
def cumtime_per_call(self):
cc, nc, tt, ct = self.stats
if cc == 0:
return 0
return ct / cc
def indent(self):
return 16 * self.depth
class ProfilingPanel(Panel):
"""
Panel that displays profiling information.
"""
title = _("Profiling")
template = 'debug_toolbar/panels/profiling.html'
def process_view(self, request, view_func, view_args, view_kwargs):
self.profiler = cProfile.Profile()
args = (request,) + view_args
return self.profiler.runcall(view_func, *args, **view_kwargs)
def add_node(self, func_list, func, max_depth, cum_time=0.1):
func_list.append(func)
func.has_subfuncs = False
if func.depth < max_depth:
for subfunc in func.subfuncs():
if subfunc.stats[3] >= cum_time:
func.has_subfuncs = True
self.add_node(func_list, subfunc, max_depth, cum_time=cum_time)
def process_response(self, request, response):
if not hasattr(self, 'profiler'):
return None
# Could be delayed until the panel content is requested (perf. optim.)
self.profiler.create_stats()
self.stats = DjangoDebugToolbarStats(self.profiler)
self.stats.calc_callees()
root = FunctionCall(self.stats, self.stats.get_root_func(), depth=0)
func_list = []
self.add_node(func_list, root, 10, root.stats[3] / 8)
self.record_stats({'func_list': func_list})
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