Note that more memory does not necessary mean that everything is uniformly bigger, as there is some strongly-non-uniform distribution of memory map sizes, and m

Note that more memory does not necessary mean that everything is uniformly bigger, as there is some strongly-non-uniform distribution of memory map sizes, and more memory most likely means that large maps goes larger. Take for example bash: its RSS is about ~4 MB, but it has 43 memory maps (on my system). One is > 1MB, two are 512-1024 kB, most are very small. Each requires at least one page, so with mandatory 2 MB pages, its RSS would be 86 MB instead of 4 MB.