It seems likely to me that the first one's slow performance is because it has to first extend the @s array because it's initially empty. It then has to copy over all the values into newly created scalars in the array. Whereas when you're just copying into scalars, the scalars are just there and already exist, so no extending, just a matter of sv_setsv() internally.

The second test gains because the overhead of the large number of values overwhelms the extending delay.

In reply to Re: list of scalars vs arrays, speed? by Matts
in thread list of scalars vs arrays, speed? by BUU

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