4 ms·
You are measuring two things together: allocation and an initialization inside a loop. I would try to separate them (I.e. measure [None]*length and np.empty(le
by sharikous 5y ago
You are measuring two things together: allocation and an initialization inside a loop.
I would try to separate them (I.e. measure [None]*length and np.empty(length)
- knappa 5y agoIn [1]: length = 10_000 In [2]: %%timeit ...: pre = [None] * length ...: ...: 38.7 µs ± 128 ns per loop (mean ± std. dev. of 7 runs, 10,000 loops each) In [3]: %%timeit ...: pre = np.empty(length, dtype=int) ...: ...: 1.32 µs ± 6.59 ns per loop (mean ± std. dev. of 7 runs, 1,000,000 loops each)