py_spy_profiling_demo_with_factorization_loop_and_sleep.py

1import time
2
3def factorize(n):
4    """A computationally intensive function to profile."""
5    factors = []
6    d = 2
7    while d * d <= n:
8        while (n % d) == 0:
9            factors.append(d)
10            n //= d
11        d += 1
12    if n > 1:
13        factors.append(n)
14    return factors
15
16def main():
17    print("Py-spy sample starting. Run 'py-spy top --pid <pid>' to profile me.")
18    while True:
19        # Simulate CPU work
20        for i in range(1000, 1500):
21            factorize(i)
22        
23        # Simulate waiting/IO
24        time.sleep(0.5)
25
26if __name__ == "__main__":
27    main()