Message263731
| Author |
vstinner |
| Recipients |
brett.cannon, lemburg, pitrou, r.david.murray, vstinner, yselivanov |
| Date |
2016年04月19日.11:11:55 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<CAMpsgwb7MMr=P0+fUCt9yhKF4SgGLjZXJhW_O-Sa19KZ4nsmCg@mail.gmail.com> |
| In-reply-to |
<57160FF3.8090203@egenix.com> |
| Content |
> Could you perhaps check what's causing these slowdowns ?
It's obvious, no? My patch causes the slowdown.
On a timeit microbenchmark, I don't see such slowdown. That's also why
I suspect that pybench is unstable.
python3.6 -m timeit '{}' says 105 ns with and without the patch.
python3.6 -m timeit 'd={}; d[1]=1; d[2]=2; d[3]=3; d[4]=4; d[5]=5;
d[6]=6; d[7]=7; d[8]=8; d[9]=9; d[10]=10' says 838 ns with and without
the patch.
I have to "cheat": I run timeit enough times until I see the "minimum". |
|