/usr/share/pyshared/debug_toolbar/panels/profiling.py is in python-django-debug-toolbar 1:0+git201107220111-96e46c6-1.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | from __future__ import division
from django.template.loader import render_to_string
from django.utils.translation import ugettext_lazy as _
from django.utils.safestring import mark_safe
from debug_toolbar.panels import DebugPanel
try:
from line_profiler import LineProfiler, show_func
DJ_PROFILE_USE_LINE_PROFILER = True
except ImportError:
DJ_PROFILE_USE_LINE_PROFILER = False
from cStringIO import StringIO
import cProfile
from pstats import Stats
from colorsys import hsv_to_rgb
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.iteritems():
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
self._line_stats_text = None
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('/', 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].iteritems():
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
def line_stats_text(self):
if self._line_stats_text is None:
lstats = self.statobj.line_stats
if self.func in lstats.timings:
out = StringIO()
fn, lineno, name = self.func
show_func(fn, lineno, name, lstats.timings[self.func], lstats.unit, stream=out)
self._line_stats_text = out.getvalue()
else:
self._line_stats_text = False
return self._line_stats_text
class ProfilingDebugPanel(DebugPanel):
"""
Panel that displays the Django version.
"""
name = 'Profiling'
has_content = True
def nav_title(self):
return _('Profiling')
def url(self):
return ''
def title(self):
return _('Profiling')
def _unwrap_closure_and_profile(self, func):
if not hasattr(func, 'func_code'):
return
self.line_profiler.add_function(func)
if func.func_closure:
for cell in func.func_closure:
if hasattr(cell.cell_contents, 'func_code'):
self._unwrap_closure_and_profile(cell.cell_contents)
def process_view(self, request, view_func, view_args, view_kwargs):
__traceback_hide__ = True
self.profiler = cProfile.Profile()
args = (request,) + view_args
if DJ_PROFILE_USE_LINE_PROFILER:
self.line_profiler = LineProfiler()
self._unwrap_closure_and_profile(view_func)
self.line_profiler.enable_by_count()
out = self.profiler.runcall(view_func, *args, **view_kwargs)
self.line_profiler.disable_by_count()
else:
self.line_profiler = None
out = self.profiler.runcall(view_func, *args, **view_kwargs)
return out
def process_response(self, request, response):
self.profiler.create_stats()
self.stats = DjangoDebugToolbarStats(self.profiler)
if DJ_PROFILE_USE_LINE_PROFILER:
self.stats.line_stats = self.line_profiler.get_stats()
return response
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 or (subfunc.func in self.stats.line_stats.timings):
func.has_subfuncs = True
self.add_node(func_list, subfunc, max_depth, cum_time=cum_time)
def content(self):
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)
context = self.context.copy()
context.update({
'func_list': func_list,
})
return render_to_string('debug_toolbar/panels/profiling.html', context)
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