performance measurements

Each table row shows performance measurements for this MicroPython program with a particular command-line input value N.

 N  CPU secs Elapsed secs Memory KB Code B ≈ CPU Load
5,000,00023.3317.396,348448  26% 28% 39% 23%
5,000,00023.3617.476,344448  24% 23% 38% 30%
5,000,00023.7217.776,256448  34% 18% 32% 29%

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.

 notes

 thread-ring MicroPython #2 program source code

# 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[1])
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()

 make, command-line, and program output logs

Tue, 29 Jan 2019 18:06:39 GMT

COMMAND LINE:
/usr/bin/micropython threadring.micropython-2.micropython 5000000

PROGRAM OUTPUT:
181

Revised BSD license

  Home   Conclusions   License   Play