performance measurements
Each table row shows performance measurements for this Graal program with a particular command-line input value N.
| N | CPU secs | Elapsed secs | Memory KB | Code B | ≈ CPU Load |
|---|---|---|---|---|---|
| 5,000,000 | 199.69 | 180.36 | 596,212 | 448 | 23% 13% 10% 9% 18% 19% 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.
notes
thread-ring Graal #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
Thu, 06 May 2021 22:58:54 GMT COMMAND LINE: /usr/lib/jvm/java-8-graalvm/bin/graalpython threadring.graal-2.graal 5000000 PROGRAM OUTPUT: 181