[issue13351] Strange time complexity when creating nested lists

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

It's because of the cyclic garbage collector. If you call gc.disable() at the beginning of your benchmark, you'll see that runtimes get more similar in both cases.
You can also use tuples instead of lists as much as possible, it will reduce pressure on the GC.

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nosy: +pitrou

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13351>
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