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benchmark.py
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benchmark.py
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import time
import copy
import collections
import importlib
def generate_available_wrappers():
for name, module in WRAPPER_NAMES:
try:
yield getattr(importlib.import_module(module), name)
except ImportError:
print("Can't import {} from {}".format(name, module))
WRAPPER_NAMES = (
("Box", "box"),
("Dict", "addict"),
("DotMap", "dotmap"),
("DotAccessDict", "ddict"),
("EasyDict", "easydict"),
("Dot", "dot_access"),
("Skin", "skin"),
("dict", "builtins"),
# ("Struct", "tri.struct"),
)
WRAPPERS = tuple(generate_available_wrappers())
COUNT = 10 ** 4
ORIGINAL = {
"foo": {
"bar": [
0,
1,
{
"baz": "value",
"foo": {
"bar": [
0,
1,
{
"baz": "value"
}
]
}
}
]
}
}
class Timer:
def __enter__(self):
self.t = time.perf_counter()
return self
def __exit__(self, *exc_info):
self.t = time.perf_counter() - self.t
def create_from_dict(original, wrapper):
with Timer() as timer:
wrapper(original)
return timer.t
def create_from_kwargs(original, wrapper):
with Timer() as timer:
wrapper(a=1, b=[1, 2, 3])
return timer.t
def get_exist_element_attribute_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
assert w.foo.bar[-1].foo.bar[2].baz == "value", "Wrong node value"
return timer.t
def get_exist_element_item_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
assert w["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] == "value", "Wrong node value"
return timer.t
def get_non_exist_element_attribute_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w.one.two.three
return timer.t
def get_non_exist_element_item_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w["one"]["two"]["three"]
return timer.t
def set_exist_element_attribute_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w.foo.bar[-1].foo.bar[2].baz = 1
assert w.foo.bar[-1].foo.bar[2].baz == 1, "Wrong node value"
return timer.t
def set_exist_element_item_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] = 1
assert w["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] == 1, "Wrong node value"
return timer.t
def set_non_exist_element_attribute_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w.one.two.three = 1
assert w.one.two.three == 1, "Wrong node value"
return timer.t
def set_non_exist_element_item_access(original, wrapper):
w = wrapper(original)
with Timer() as timer:
w["one"]["two"]["three"] = 1
assert w["one"]["two"]["three"] == 1, "Wrong node value"
return timer.t
def support_items_iteration(original, wrapper):
w = wrapper({"foo": {"bar": 1}, "bar": {"bar": 1}})
with Timer() as timer:
for k, v in w.items():
assert isinstance(k, str), "Key is not string"
assert v.bar == 1, "Iterated value is not wrapped"
return timer.t
def support_values_iteration(original, wrapper):
w = wrapper({"foo": {"bar": 1}, "bar": {"bar": 1}})
with Timer() as timer:
for v in w.values():
assert v.bar == 1, "Iterated value is not wrapped"
return timer.t
def support_len(original, wrapper):
w = wrapper(original)
with Timer() as timer:
assert len(w.foo.bar) == 3, "Length is wrong"
return timer.t
def support_copy(original, wrapper):
w = wrapper({"foo": [1, 2, 3]})
with Timer() as timer:
nw = copy.copy(w)
nw.foo.append(4)
assert w.foo[-1] == 4, "Need 4, got {}".format(w.foo[-1])
return timer.t
def support_deepcopy(original, wrapper):
w = wrapper({"foo": [1, 2, 3]})
with Timer() as timer:
nw = copy.deepcopy(w)
nw.foo.append(4)
assert w.foo[-1] == 3, "Need 3, got {}".format(w.foo[-1])
return timer.t
def wrapped_modification_affect_original(original, wrapper):
w = wrapper(original)
assert original["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] != 1, "Wrong original value"
with Timer() as timer:
w.foo.bar[-1].foo.bar[2].baz = 1
assert original["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] == 1, "Wrong node value"
return timer.t
def original_modification_affect_wrapped(original, wrapper):
w = wrapper(original)
assert original["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] != 1, "Wrong original value"
with Timer() as timer:
assert w.foo.bar[-1].foo.bar[2].baz == "value"
original["foo"]["bar"][-1]["foo"]["bar"][2]["baz"] = 1
assert w.foo.bar[-1].foo.bar[2].baz == 1, "Wrong node value"
return timer.t
def third_as_original(original, wrapper):
w = wrapper(collections.defaultdict(list))
with Timer() as timer:
w.foo.append(1)
return timer.t
def non_dict_as_original(original, wrapper):
w = wrapper([{"foo": "bar"}, {"bar": "foo"}])
with Timer() as timer:
assert w[0].foo == "bar", "Need 'bar', got {!r}".format(w[0].foo)
assert w[1].bar == "foo", "Need 'foo', got {!r}".format(w[1].foo)
return timer.t
BENCHMAKRS = (
("Create from `dict`", create_from_dict),
("Create from key-word arguments", create_from_kwargs),
("Get exist element (attribute access)", get_exist_element_attribute_access),
("Get exist element (item access)", get_exist_element_item_access),
("Get non-exist element (attribute access)", get_non_exist_element_attribute_access),
("Get non-exist element (item access)", get_non_exist_element_item_access),
("Set exist element (attribute access)", set_exist_element_attribute_access),
("Set exist element (item access)", set_exist_element_item_access),
("Set non-exist element (attribute access)", set_non_exist_element_attribute_access),
("Set non-exist element (item access)", set_non_exist_element_item_access),
("Support `items` iteration", support_items_iteration),
("Support `values` iteration", support_values_iteration),
("Support `len`", support_len),
("Support `copy`", support_copy),
("Support `deepcopy`", support_deepcopy),
("Wrapped modification affect original", wrapped_modification_affect_original),
("Original modification affect wrapped", original_modification_affect_wrapped),
("`defaultdict` as original", third_as_original),
("Non-dict as original", non_dict_as_original),
)
table = collections.defaultdict(list)
for title, bench in BENCHMAKRS:
print(title)
for wrapper in WRAPPERS:
try:
total = 0
for _ in range(COUNT):
total += bench(copy.deepcopy(ORIGINAL), wrapper)
result = "[+] {:.3f}".format(total)
except Exception as e:
total = "-"
result = "[-] {!r}".format(e)
table[wrapper.__name__].append(total)
print(" {:<15}{}".format(wrapper.__name__, result))
columns = sorted(table.items(), key=lambda p: sum(isinstance(t, float) for t in p[1]), reverse=True)
head, columns = zip(*columns)
rows = list(zip(*columns))
print("Markdown table:")
module_by_name = dict(WRAPPER_NAMES)
row = ["{} ({})".format(name, module_by_name[name]) for name in head]
print("|".join(["", ""] + row + [""]))
print("|:---" + "|:---:" * len(WRAPPERS) + "|")
for (title, _), row in zip(BENCHMAKRS, rows):
values = []
fastest = min(v for v in row if isinstance(v, float))
for v in row:
if isinstance(v, float):
values.append("{:.1f}x".format(v / fastest))
else:
values.append(v)
print("|".join(["", title] + values + [""]))