Antoine Pitrou wrote:
>> Instead of changing PyUnicodeObject from a PyObject to a PyVarObject,
>> making sub-typing a lot harder, I'd much rather apply a single change
>> for 3.1: raising the KEEPALIVE_SIZE_LIMIT to 32 as explained and
>> motivated here:
> 
> You make it sound like an alternative to this patch, while it is quite
> independent. You could open a separate entry about it, together with
> benchmarks results etc.

You're right, I could open a separate ticket for it, but it does fit
the title of the ticket and was also discussed at length on this
ticket, since part of your original patch included changes to the
free list management in the Unicode implementation.