Re: [RFC PATCH] Add /proc/<pid>/numa_vamaps for numa node information

[prakash.sangappa]

On 05/07/2018 07:47 AM, Christopher Lameter wrote:
> On Fri, 4 May 2018, Prakash Sangappa wrote:
> > Currently 'numa_maps' gives a list of numa nodes, memory is allocated per
> > VMA.
> > Ex. we get something like from numa_maps.
> >
> > 04000  N0=1,N2=2 kernelpagesize_KB=4
> >
> > First is the start address of a VMA. This VMA could be much larger then 3 4k
> > pages.
> > It does not say which address in the VMA has the pages mapped.
> Not precise. First the address is there as you already said. That is the
> virtual address of the beginning of the VMA. What is missing? You need

Yes,

> each address for each page? Length of the VMA segment?
> Physical address?

Need numa node information for each virtual address with pages mapped.
No need of physical address.