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import functools
import textwrap
import pyperf
IMPLEMENTATIONS = {
"dict": """\
cls = dict
""",
"multidict_c": """\
from multidict._multidict import MultiDict as cls, istr
""",
"cimultidict_c": """\
from multidict._multidict import CIMultiDict as cls, istr
""",
"multidict_py": """\
from multidict._multidict_py import MultiDict as cls, istr
""",
"cimultidict_py": """\
from multidict._multidict_py import CIMultiDict as cls, istr
""",
}
INIT = """\
dct = cls()
"""
FILL = """\
for i in range(20):
dct['key'+str(i)] = str(i)
key = 'key10'
"""
FILL_ISTR = """\
for i in range(20):
key = istr('key'+str(i))
dct[key] = str(i)
key = istr('key10')
"""
SET_ITEM = (
"""\
dct[key] = '1'
dct[key] = '2'
dct[key] = '3'
dct[key] = '4'
dct[key] = '5'
dct[key] = '6'
dct[key] = '7'
dct[key] = '8'
dct[key] = '9'
dct[key] = '10'
"""
* 10
)
GET_ITEM = (
"""\
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
dct[key]
"""
* 10
)
ADD = (
"""\
add(key, '1')
add(key, '2')
add(key, '3')
add(key, '4')
add(key, '5')
add(key, '6')
add(key, '7')
add(key, '8')
add(key, '9')
add(key, '10')
"""
* 10
)
SETUP_ADD = """\
add = dct.add
"""
def benchmark_name(name, ctx, prefix=None, use_prefix=False):
if use_prefix:
return "%s%s" % (prefix % ctx, name)
return name
def add_impl_option(cmd, args):
if args.impl:
cmd.extend(["--impl", args.impl])
if __name__ == "__main__":
runner = pyperf.Runner(add_cmdline_args=add_impl_option)
parser = runner.argparser
parser.description = (
"Allows to measure performance of MultiMapping and "
"MutableMultiMapping implementations"
)
parser.add_argument(
"--impl",
choices=sorted(IMPLEMENTATIONS),
help="specific implementation to benchmark",
)
options = parser.parse_args()
implementations = (options.impl,) if options.impl else IMPLEMENTATIONS
inner_loops = 50
for impl in implementations:
# print("=======================", impl, "======================")
imports = textwrap.dedent(IMPLEMENTATIONS[impl])
name = functools.partial(
benchmark_name,
ctx=dict(impl=impl),
prefix="(impl = %(impl)s) ",
use_prefix=len(implementations) > 1,
)
runner.timeit(
name("setitem str"),
SET_ITEM,
imports + INIT + FILL,
inner_loops=inner_loops,
)
runner.timeit(
name("getitem str"),
GET_ITEM,
imports + INIT + FILL,
inner_loops=inner_loops,
)
# MultiDict specific
if impl == "dict":
continue
runner.timeit(
name("setitem istr"),
SET_ITEM,
imports + INIT + FILL_ISTR,
inner_loops=inner_loops,
)
runner.timeit(
name("getitem istr"),
GET_ITEM,
imports + INIT + FILL_ISTR,
inner_loops=inner_loops,
)
runner.timeit(
name("add str"),
ADD,
imports + INIT + FILL + SETUP_ADD,
inner_loops=inner_loops,
)
runner.timeit(
name("add istr"),
ADD,
imports + INIT + FILL_ISTR + SETUP_ADD,
inner_loops=inner_loops,
)
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