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import sys
from threading import Thread
from threading import RLock
from fastrlock.rlock import FastRLock as FLock
# Benchmark functions:
cython_code = []
def lock_unlock(l):
l.acquire()
l.release()
l.acquire()
l.release()
l.acquire()
l.release()
l.acquire()
l.release()
l.acquire()
l.release()
cython_code.append("""
def lock_unlock(lock):
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
""")
def reentrant_lock_unlock(l):
l.acquire()
l.acquire()
l.acquire()
l.acquire()
l.acquire()
l.release()
l.release()
l.release()
l.release()
l.release()
cython_code.append("""
def reentrant_lock_unlock(lock):
lock_fastrlock(lock, -1, True)
lock_fastrlock(lock, -1, True)
lock_fastrlock(lock, -1, True)
lock_fastrlock(lock, -1, True)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
unlock_fastrlock(lock)
unlock_fastrlock(lock)
unlock_fastrlock(lock)
unlock_fastrlock(lock)
""")
def mixed_lock_unlock(l):
l.acquire()
l.release()
l.acquire()
l.acquire()
l.release()
l.acquire()
l.release()
l.acquire()
l.release()
l.release()
cython_code.append("""
def mixed_lock_unlock(lock):
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
lock_fastrlock(lock, -1, True)
unlock_fastrlock(lock)
unlock_fastrlock(lock)
""")
def context_manager(l):
with l: pass
with l:
with l:
with l: pass
with l: pass
with l:
with l: pass
with l:
with l: pass
with l: pass
with l: pass
with l:
with l:
with l: pass
with l: pass
with l:
with l: pass
with l: pass
def lock_unlock_nonblocking(l):
if l.acquire(False):
l.release()
if l.acquire(False):
l.release()
if l.acquire(False):
l.release()
if l.acquire(False):
l.release()
if l.acquire(False):
l.release()
cython_code.append("""
def lock_unlock_nonblocking(lock):
if lock_fastrlock(lock, -1, False):
unlock_fastrlock(lock)
if lock_fastrlock(lock, -1, False):
unlock_fastrlock(lock)
if lock_fastrlock(lock, -1, False):
unlock_fastrlock(lock)
if lock_fastrlock(lock, -1, False):
unlock_fastrlock(lock)
if lock_fastrlock(lock, -1, False):
unlock_fastrlock(lock)
""")
# End of benchmark functions
def threaded(l, test_func, tcount=10):
threads = [ Thread(target=test_func, args=(l,)) for _ in range(tcount) ]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
def run_benchmark(name, lock, version, functions, repeat_count, repeat_count_t):
print('Testing %s (%s)' % (name, version))
from timeit import Timer
from functools import partial
print("sequential (x%d):" % repeat_count)
for function in functions:
timer = Timer(partial(function, lock))
print('%-25s: %9.2f msec' % (function.__name__, max(timer.repeat(repeat=4, number=repeat_count)) * 1000.0))
print("threaded 10T (x%d):" % repeat_count_t)
for function in functions:
timer = Timer(partial(threaded, lock, function))
print('%-25s: %9.2f msec' % (function.__name__, max(timer.repeat(repeat=4, number=repeat_count_t)) * 1000.0))
if sys.version_info < (3, 5):
import imp
def load_dynamic(name, module_path):
return imp.load_dynamic(name, module_path)
else:
import importlib.util as _importlib_util
def load_dynamic(name, module_path):
spec = _importlib_util.spec_from_file_location(name, module_path)
module = _importlib_util.module_from_spec(spec)
spec.loader.exec_module(module)
return module
def main():
functions = [
lock_unlock,
reentrant_lock_unlock,
mixed_lock_unlock,
lock_unlock_nonblocking,
context_manager,
]
import fastrlock
import glob
import os.path
import re
import tempfile
repeat_count = 100000
repeat_count_t = 1000
rlock = (RLock(), "%d.%d.%d" % sys.version_info[:3])
flock = (FLock(), fastrlock.__version__)
locks = []
args = sys.argv[1:]
if 'rlock' in args:
locks.append(rlock)
if 'flock' in args:
locks.append(flock)
if not args:
locks = [rlock, flock]
for _ in range(args.count('quick')):
repeat_count = max(10, repeat_count // 100)
repeat_count_t = max(5, repeat_count_t // 10)
for lock, version in locks:
name = type(lock).__name__
run_benchmark(name, lock, version, functions, repeat_count, repeat_count_t)
if 'cython' in args or not args:
lock, version = flock
from Cython.Build.Cythonize import cython_compile, parse_args
basepath = None
try:
with tempfile.NamedTemporaryFile(mode="w", suffix='.pyx') as f:
code = '\n'.join(cython_code)
cy_function_names = re.findall(r"def (\w+)\(", code)
f.write("from fastrlock.rlock cimport lock_fastrlock, unlock_fastrlock\n\n")
f.write(code)
f.flush()
options, _ = parse_args(["", f.name, "-3", "--force", "--inplace"])
cython_compile(f.name, options)
basepath = os.path.splitext(f.name)[0]
for ext in [".*.so", ".*.pyd", ".so", ".pyd"]:
so_paths = glob.glob(basepath + ext)
if so_paths:
so_path = so_paths[0]
break
else:
print("Failed to find Cython compiled module")
sys.exit(1)
module = load_dynamic(os.path.basename(basepath), so_path)
cy_functions = [getattr(module, name) for name in cy_function_names]
run_benchmark("Cython interface of %s" % type(lock).__name__, lock, version,
cy_functions, repeat_count, repeat_count_t)
finally:
if basepath:
files = glob.glob(basepath + ".*") # .c, .so / .pyd
if len(files) > 3:
print("Found too many artefacts, not deleting temporary files")
else:
for filename in files:
os.unlink(filename)
if __name__ == '__main__':
main()
|
