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36 lines
757 B
36 lines
757 B
6 years ago
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#!/usr/bin/env python3
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from multiprocessing import Process
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from setproctitle import setproctitle
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import os
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import numpy as np
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from common.realtime import sec_since_boot
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def waste(pid):
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# set affinity
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os.system("taskset -p %d %d" % (1 << pid, os.getpid()))
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m1 = np.zeros((200,200)) + 0.8
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m2 = np.zeros((200,200)) + 1.2
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i = 1
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st = sec_since_boot()
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j = 0
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while 1:
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if (i % 100) == 0:
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setproctitle("%3d: %8d" % (pid, i))
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lt = sec_since_boot()
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print("%3d: %8d %f %.2f" % (pid, i, lt-st, j))
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st = lt
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i += 1
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j = np.sum(np.matmul(m1, m2))
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def main(gctx=None):
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print("1-2 seconds is baseline")
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for i in range(4):
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p = Process(target=waste, args=(i,))
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p.start()
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if __name__ == "__main__":
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main()
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