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
6,000,000105.9749.134,5961191  47% 35% 59% 52%
6,000,000103.0946.574,6281191  62% 32% 61% 42%
6,000,000105.2247.944,6321191  44% 39% 56% 55%

Read the ↓ make, command line, and program output logs to see how this program was run.

Read chameneos-redux benchmark to see what this program should do.

 notes

 chameneos-redux MicroPython #2 program source code

# The Computer Language Benchmarks Game
# http://benchmarksgame.alioth.debian.org/
# contributed by Daniel Nanz 2008-04-10
# 2to3

import sys
import _thread
import time

# colors and matching
creature_colors = ['blue', 'red', 'yellow']

def complement(c1, c2):

    if c1 == c2: return c1
    if c1 == 'blue':
        if c2 == 'red': return 'yellow'
        return 'red'
    if c1 == 'red':
        if c2 == 'blue': return 'yellow'
        return 'blue'
    if c2 == 'blue': return 'red'
    return 'blue'


compl_dict = dict(((c1, c2), complement(c1, c2))
                  for c1 in creature_colors
                  for c2 in creature_colors)


def check_complement(colors=creature_colors, compl=compl_dict):

    for c1 in colors:
        for c2 in colors:
            print('%s + %s -> %s' % (c1, c2, compl[(c1, c2)]))
    print('')


# reporting
def spellout(n):
    
    numbers = ['zero', 'one', 'two', 'three', 'four',
               'five', 'six', 'seven', 'eight', 'nine']
    return ' ' + ' '.join(numbers[int(c)] for c in str(n))


def report(input_zoo, met, self_met):

    print(' ' + ' '.join(input_zoo))
    for m, sm in zip(met, self_met):
        print(str(m) + spellout(sm))
    print(spellout(sum(met)) + '\n')


# the zoo
def creature(my_id, venue, my_lock_acquire, in_lock_acquire, out_lock_release):

    while True:
        my_lock_acquire()   # only proceed if not already at meeting place
        in_lock_acquire()   # only proceed when holding in_lock
        venue[0] = my_id    # register at meeting place
        out_lock_release()  # signal "registration ok"


def let_them_meet(meetings_left, input_zoo,
                  compl=compl_dict, allocate=_thread.allocate_lock):
    # prepare
    c_no = len(input_zoo)
    venue = [-1]
    met = [0] * c_no
    self_met = [0] * c_no
    colors = input_zoo[:]
    
    in_lock = allocate()
    in_lock_acquire = in_lock.acquire     # function aliases
    in_lock_release = in_lock.release     # (minor performance gain)
    in_lock_acquire()
    out_lock = allocate()
    out_lock_release = out_lock.release
    out_lock_acquire = out_lock.acquire
    out_lock_acquire()
    locks = [allocate() for c in input_zoo]
    
    # let creatures wild
    for ci in range(c_no):
        args = (ci, venue, locks[ci].acquire, in_lock_acquire, out_lock_release)
        new = _thread.start_new_thread(creature, args)
    time.sleep(0.05)     # to reduce work-load imbalance
    
    in_lock_release()   # signal "meeting_place open for registration"
    out_lock_acquire()  # only proceed with a "registration ok" signal
    id1 = venue[0]
    while meetings_left > 0:
        in_lock_release()
        out_lock_acquire()
        id2 = venue[0]
        if id1 != id2:
            new_color = compl[(colors[id1], colors[id2])]
            colors[id1] = new_color
            colors[id2] = new_color
            met[id1] += 1
            met[id2] += 1
        else:
            self_met[id1] += 1
            met[id1] += 1
        meetings_left -= 1
        if meetings_left > 0:
            locks[id1].release()  # signal "you were kicked from meeting place"
            id1 = id2
        else:
            report(input_zoo, met, self_met)

           
def chameneosiate(n):

    check_complement()
    let_them_meet(n, ['blue', 'red', 'yellow'])
    let_them_meet(n, ['blue', 'red', 'yellow', 'red', 'yellow',
                      'blue', 'red', 'yellow', 'red', 'blue'])
    #print ''


chameneosiate(int(sys.argv[1]))       

 make, command-line, and program output logs

Tue, 29 Jan 2019 17:40:12 GMT

COMMAND LINE:
/usr/bin/micropython chameneosredux.micropython-2.micropython 6000000

PROGRAM OUTPUT NOT CHECKED:
blue + blue -> blue
blue + red -> yellow
blue + yellow -> red
red + blue -> yellow
red + red -> red
red + yellow -> blue
yellow + blue -> red
yellow + red -> blue
yellow + yellow -> yellow

 blue red yellow
4223061 zero
3790007 zero
3986932 zero
 one two zero zero zero zero zero zero

 blue red yellow red yellow blue red yellow red blue
1248616 zero
1040671 zero
1162246 zero
1167336 zero
1180382 zero
1260006 zero
1187316 zero
1295018 zero
1285083 zero
1173326 zero
 one two zero zero zero zero zero zero

Revised BSD license

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