[Cython] Storing many, many instances

[Dag Sverre Seljebotn]

Stefan Behnel wrote:
> Robert Bradshaw wrote:
>> We should
>> look into making instantiating (cdef) classes faster by default as well.
> 
> Different topic, but surely worth it (and worth a ticket). It might work
> to always use PY_NEW() for instantiation and then generate a separate (and
> direct) call to __init__() only if the type defines it.

Should one consider allocating arrays of cdef class objects as one big 
memory block? I would think that allocating first and then run a 
constructor N times would be faster than N allocations.

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Dag Sverre