Re: [PATCH]: Adding a counter in vma to indicate the number of physical pages backing it

Arjan van de Ven
2006-06-11T16:09:10Z

On Fri, 2006-06-09 at 18:33 -0700, Rohit Seth wrote:
> Below is a patch that adds number of physical pages that each vma is
> using in a process. Exporting this information to user space
> using /proc/<pid>/maps interface.

is it really worth bloating the vma struct for this? there are quite a
few workloads that have a gazilion vma's, and this patch adds both
memory usage and cache pressure to those workloads...