On Thu, Aug 8, 2024 at 2:20 PM David Hildenbrand <david@xxxxxxxxxx> wrote: > > On 08.08.24 17:42, Pasha Tatashin wrote: > > /proc/vmstat contains events and stats, events can only grow, but stats > > can grow and srhink. > > s/shrink/ Thanks, fixed. > > I think we discussed exposing this in /proc/meminfo. There, it would be > much easier to simply have a global variable, print it, and be done with > it. Like we do with TotalCma. Originally, Sourav had proposed adding per-page metadata stat to /proc/meminfo, but it was decided against, because all the other stats in /proc/meminfo are part of MemTotal, but memmap allocations are not always part of MemTotal which makes things confusing. This is why it makes sense to keep nr_memmap only in /proc/vmstat.
