def __call__(self, environ, start_response):
request = MiniRequest(environ)
if request.path_info == self.path:
# we're being asked to render the profile view
self.lock.acquire()
try:
text = self.index(request)
finally:
self.lock.release()
start_response('200 OK',
[('content-type', 'text/html; charset="UTF-8"'),
('content-length', str(len(text)))])
return [bytes_(text)]
self.lock.acquire()
try:
_locals = locals()
code = self.unwind and PROFILE_EXEC_EAGER or PROFILE_EXEC_LAZY
self.profiler.runctx(code, globals(), _locals)
if self.first_request: # discard to avoid timing warm-up
self.profiler = profile.Profile()
self.first_request = False
else:
self.profiler.dump_stats(self.log_filename)
if HAS_PP2CT and self.cachegrind_filename is not None:
stats = pstats.Stats(self.profiler)
conv = pyprof2calltree.CalltreeConverter(stats)
with open(self.cachegrind_filename, 'w') as grind:
conv.output(grind)
app_iter = _locals['app_iter_']
return app_iter
finally:
self.lock.release()
def save_data(self):
try:
import gprof2dot
import pyprof2calltree
except ImportError:
msg = ('Unable to start profiling.\n Please either '
'disable performance profiling in settings.yaml or '
'install all modules listed in test-requirements.txt.')
raise error.ProfilingError(msg)
self.profiler.disable()
elapsed = time.time() - self.start
pref_filename = os.path.join(
self.paths['last_performance_test'],
'{method:s}.{handler_name:s}.{elapsed_time:.0f}ms.{t_time}.'.
format(method=self.method,
handler_name=self.handler_name or 'root',
elapsed_time=elapsed * 1000.0,
t_time=time.time()))
tree_file = pref_filename + 'prof'
stats_file = pref_filename + 'txt'
callgraph_file = pref_filename + 'dot'
# write pstats
with file(stats_file, 'w') as file_o:
stats = Stats(self.profiler, stream=file_o)
stats.sort_stats('time', 'cumulative').print_stats()
# write callgraph in dot format
parser = gprof2dot.PstatsParser(self.profiler)
def get_function_name((filename, line, name)):
module = os.path.splitext(filename)[0]
module_pieces = module.split(os.path.sep)
return "{module:s}:{line:d}:{name:s}".format(module="/".join(
module_pieces[-4:]),
line=line,
name=name)
parser.get_function_name = get_function_name
gprof = parser.parse()
with open(callgraph_file, 'w') as file_o:
dot = gprof2dot.DotWriter(file_o)
theme = gprof2dot.TEMPERATURE_COLORMAP
dot.graph(gprof, theme)
# write calltree
call_tree = pyprof2calltree.CalltreeConverter(stats)
with file(tree_file, 'wb') as file_o:
call_tree.output(file_o)
def decorator(*args, **kwargs):
result = None
current_thread = threading.current_thread()
if cumulative:
if profile_per_thread:
tls = threading.local()
if not hasattr(tls, 'profiler'):
tls.profiler = Profile()
profiler = tls.profiler
else:
global profiler
else:
profiler = Profile()
try:
result = profiler.runcall(func, *args, **kwargs)
finally:
if dump_stats:
if generate_profile:
if profile_per_thread:
profile_path = os.path.join(
dump_dir, '%s.%s' %
(current_thread.name, profile_filename))
else:
profile_path = os.path.join(
dump_dir, profile_filename)
profiler.dump_stats(profile_path)
stats = pstats.Stats(profiler)
conv = pyprof2calltree.CalltreeConverter(stats)
if generate_callgrind:
if profile_per_thread:
callgrind_path = os.path.join(
dump_dir, '%s.%s' %
(current_thread.name, callgrind_filename))
else:
callgrind_path = os.path.join(dump_dir,
callgrind_filename)
with open(callgrind_path, 'w') as fd:
conv.output(fd)
if print_stats:
stats.strip_dirs().sort_stats(sort_stats).print_stats(
print_stats)
return result
def decorator(*args, **kwargs):
result = None
if cumulative:
global profiler
else:
profiler = Profile()
try:
result = profiler.runcall(func, *args, **kwargs)
finally:
if dump_stats:
profiler.dump_stats(profile_filename)
stats = pstats.Stats(profiler)
conv = pyprof2calltree.CalltreeConverter(stats)
with open(callgrind_filename, 'w') as fd:
conv.output(fd)
if print_stats:
stats.strip_dirs().sort_stats(sort_stats).print_stats(
print_stats)
return result
def __call__(self, environ, start_response):
path_info = environ.get('PATH_INFO')
if path_info == self.path:
# we're being asked to render the profile view
self.lock.acquire()
try:
text = self.index(environ)
finally:
self.lock.release()
start_response('200 OK', [('content-type', 'text/html'),
('content-length', str(len(text)))])
return [text]
self.lock.acquire()
try:
_locals = locals()
self.profiler.runctx(
'app_iter = self.app(environ, start_response); '
'app_iter = (type(app_iter) is GeneratorType) '
'and list(app_iter) or app_iter',
globals(), _locals)
if self.first_request: # discard to avoid timing warm-up
self.profiler = profile.Profile()
self.first_request = False
else:
self.profiler.dump_stats(self.log_filename)
if HAS_PP2CT and self.cachegrind_filename is not None:
stats = pstats.Stats(self.profiler)
conv = pyprof2calltree.CalltreeConverter(stats)
grind = None
try:
grind = file(self.cachegrind_filename, 'wb')
conv.output(grind)
finally:
if grind is not None:
grind.close()
app_iter = _locals['app_iter']
return app_iter
finally:
self.lock.release()
def save_data(self):
elapsed = time.time() - self.start
pref_filename = os.path.join(
settings.LOAD_TESTS_PATHS['last_performance_test'],
'{method:s}.{handler_name:s}.{elapsed_time:.0f}ms.{t_time}.'.
format(
method=self.method,
handler_name=self.handler_name or 'root',
elapsed_time=elapsed * 1000.0,
t_time=time.time()))
tree_file = pref_filename + 'prof'
stats_file = pref_filename + 'txt'
callgraph_file = pref_filename + 'dot'
# write pstats
with file(stats_file, 'w') as file_o:
stats = Stats(self.profiler, stream=file_o)
stats.sort_stats('time', 'cumulative').print_stats()
# write callgraph in dot format
parser = gprof2dot.PstatsParser(self.profiler)
def get_function_name((filename, line, name)):
module = os.path.splitext(filename)[0]
module_pieces = module.split(os.path.sep)
return "{module:s}:{line:d}:{name:s}".format(
module="/".join(module_pieces[-4:]),
line=line,
name=name)
parser.get_function_name = get_function_name
gprof = parser.parse()
with open(callgraph_file, 'w') as file_o:
dot = gprof2dot.DotWriter(file_o)
theme = gprof2dot.TEMPERATURE_COLORMAP
dot.graph(gprof, theme)
# write calltree
call_tree = pyprof2calltree.CalltreeConverter(stats)
with file(tree_file, 'wb') as file_o:
call_tree.output(file_o)
def do_kcachegrind(self, line):
if not self.stats:
print >> self.stream, "Need to load profile at first."
return
import pyprof2calltree
conv = pyprof2calltree.CalltreeConverter(self.stats)
grind = None
ts = time.time()
tmp_cachegrind_file = tempfile.mkstemp('.profile', 'cachegrind-')
print >> self.stream, tmp_cachegrind_file
try:
#grind = open(tmp_cachegrind_file, 'wb')
conv.output(tmp_cachegrind_file)
subprocess.call(['kcachegrind', tmp_cachegrind_file])
os.remove(tmp_cachegrind_file)
except TypeError:
print >> self.stream, "Can not convert into grind format."
except OSError:
print >> self.stream, "Can not launch kcachegrind. please verify it has been installed."
except Exception as ex:
print >> self.stream, "Error:", type(ex)
finally:
if grind is not None:
grind.close()
