Each table row shows performance measurements for this Python 3 program with a particular command-line input value N.
|N||CPU secs||Elapsed secs||Memory KB||Code B||≈ CPU Load|
|5,000,000||64.69||56.08||12,708||448||22% 21% 22% 20% 17% 18% 17% 17%|
Read the ↓ make, command line, and program output logs to see how this program was run.
Read thread-ring benchmark to see what this program should do.
Python 3.3.1 (default, Apr 11 2013, 12:45:45) [GCC 4.7.2] on linux
# The Computer Language Benchmarks Game # http://benchmarksgame.alioth.debian.org/ # Contributed by Antti Kervinen # Modified by Tupteq # 2to3 import sys import _thread # Set minimum stack size for threads, otherwise the program may fail # to create such a many threads _thread.stack_size(32*1024) def threadfun(number, lock_acquire, next_release): global n while 1: lock_acquire() if n > 0: n -= 1 next_release() else: print(number) main_lock.release() # main n = int(sys.argv) main_lock = _thread.allocate_lock() main_lock.acquire() first_lock = _thread.allocate_lock() next_lock = first_lock for number in range(503): lock = next_lock lock.acquire() next_lock = _thread.allocate_lock() if number < 502 else first_lock _thread.start_new_thread(threadfun, (number+1, lock.acquire, next_lock.release)) first_lock.release() main_lock.acquire()
Thu, 03 Dec 2020 23:09:02 GMT COMMAND LINE: /usr/bin/python3 threadring.python3-2.python3 5000000 PROGRAM OUTPUT: 181