stress.py
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	import time
	import sys
	from multiprocessing import Pool

	m_100=4_000_000 # 1.23 secs
	m_1G=45_000_000 # 3.47
	m_10G=450_000_000 # 26 secs

	ncpus = 1

	if len(sys.argv) > 1:
	ncpus = int(sys.argv[1])


	def kernel(n, t=2):
	str1 = 'aBcd'*n
	str1.replace('aB', 'z11aaa')
	str1.swapcase()
	time.sleep(t)
	print("Kernel finished")


	if __name__ == '__main__':
	inputs = [m_1G] * 30
	with Pool(ncpus) as p:
	p.map(kernel, inputs)

	print(f"Run finished")