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leonsas/grokking_the_gil.py

Created May 19, 2017 19:47
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Grokking the GIL and atomic ops
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grokking_the_gil.py
# Tweaked from https://emptysqua.re/blog/grok-the-gil-fast-thread-safe-python/
import threading
for i in range(100):
n = 0
def foo():
global n
n += 1
threads = []
for i in range(1000):
t = threading.Thread(target=foo)
threads.append(t)
for t in threads:
t.start()
for t in threads:
t.join()
print(n)
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