performance measurements
Each table row shows performance measurements for this Python 2 program with a particular command-line input value N.
| N | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| 5,000,000 | 0.55 | 0.56 | 7,068 | 407 | 98% 5% 0% 2% |
| 5,000,000 | 0.55 | 0.55 | 7,052 | 407 | 0% 0% 100% 2% |
| 5,000,000 | 0.55 | 0.55 | 7,060 | 407 | 100% 4% 0% 0% |
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 Python 2 program source code
# The Computer Language Benchmarks Game
# http://benchmarksgame.alioth.debian.org/
#
# contributed by Daniel Nanz 2008-03-11
# Coroutines via enhanced generators
# 2to3
import sys
import itertools
def main(n = int(sys.argv[1]), n_threads=503, cycle=itertools.cycle):
def worker(worker_id):
n = 1
while True:
if n > 0:
n = (yield (n - 1))
else:
print(worker_id)
raise StopIteration
threadRing = [worker(w) for w in range(1, n_threads + 1)]
for t in threadRing: foo = next(t) # start exec. gen. funcs
sendFuncRing = [t.send for t in threadRing] # speed...
for send in cycle(sendFuncRing):
try:
n = send(n)
except StopIteration:
break
main()
make, command-line, and program output logs
Wed, 06 Jun 2018 10:03:26 GMT COMMAND LINE: /usr/bin/python2 threadring.python 5000000 PROGRAM OUTPUT: 181