On Tue, Oct 31, 2017 at 02:55:04PM +0000, Nathaniel Smith wrote:
> 3) also it's not clear what the best approach will look like, given that we care a lot about using calloc when possible, and have reason to prefer using regular freeing functions whenever possible.

I actually have the same problems. But since no fast (kernel-zeroed)
aligned_calloc() exists, I must use memset() anyway.

So an emulated aligned_calloc() should probably not go into CPython
since it doesn't provide any performance advantages.