[issue6216] Raise Unicode KEEPALIVE_SIZE_LIMIT from 9 to 32?

[Antoine Pitrou]

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

> I did not forget. I omitted because there were no benchmarks to
> mention. I admit that silence is sometimes difficult to interpret and
> that I should have said so. Do you see that incrementing the limit
> could have negative effects that need to be justified? Just simply the
> extra space ? or something else?

It can always have negative effects in the form of decreased cache
efficiency, or more fragmentation in the memory allocator.
Otherwise we could similarly bump up the size of all freelists in the
interpreter (there are several of them).

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