Originally posted by adewri
Where as in system managed LMT the first few extents allocated would of 64k, then 1M, then 8M and so on. So for a small sort of 64k only one extent of 64k will be allocated instead on 10M as in case of uniform sized Temporary LMT. And of course for larger sorts the extent size will grow accordingly from 64k to 1M to 8M and so on.
Did you test this behaviour or you are talking on theoritical/documentation grounds ?