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import cProfile
import profile
import re
import sys
import time
from timeit import Timer
import django.conf
import django.template.loader
import pyinstrument
django.conf.settings.configure(
INSTALLED_APPS=(),
TEMPLATES=[
{
"BACKEND": "django.template.backends.django.DjangoTemplates",
"DIRS": [
"./examples/django_example/django_example/templates",
],
}
],
)
django.setup()
def test_func_re():
re.compile(
r"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"
)
def test_func_template():
django.template.loader.render_to_string("template.html")
# heat caches
test_func_template()
def time_base(function, repeats):
timer = Timer(stmt=function)
return timer.repeat(number=repeats)
def time_profile(function, repeats):
timer = Timer(stmt=function)
p = profile.Profile()
return p.runcall(lambda: timer.repeat(number=repeats))
def time_cProfile(function, repeats):
timer = Timer(stmt=function)
p = cProfile.Profile()
return p.runcall(lambda: timer.repeat(number=repeats))
def time_pyinstrument(function, repeats):
timer = Timer(stmt=function)
p = pyinstrument.Profiler()
p.start()
result = timer.repeat(number=repeats)
p.stop()
return result
profilers = (
("Base", time_base),
# ('profile', time_profile),
("cProfile", time_cProfile),
("pyinstrument", time_pyinstrument),
)
tests = (
("re.compile", test_func_re, 120000),
("django template render", test_func_template, 400),
)
def timings_for_test(test_func, repeats):
results = []
for profiler_tuple in profilers:
time = profiler_tuple[1](test_func, repeats)
results += (profiler_tuple[0], min(time))
return results
# print header
for column in [""] + [test[0] for test in tests]:
sys.stdout.write(f"{column:>24}")
sys.stdout.write("\n")
for profiler_tuple in profilers:
sys.stdout.write(f"{profiler_tuple[0]:>24}")
sys.stdout.flush()
for test_tuple in tests:
time = min(profiler_tuple[1](test_tuple[1], test_tuple[2])) * 10
sys.stdout.write(f"{time:>24.2f}")
sys.stdout.flush()
sys.stdout.write("\n")
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