Re: [RFC mm][PATCH 2/5] percpu cached mm counter

Christoph Lameter
2009-12-10T17:35:42Z

On Thu, 10 Dec 2009, Ingo Molnar wrote:

>
> No, i'm not suggesting that - i'm just suggesting that right now MM
> stats are not very well suited to be exposed via perf. If we wanted to
> measure/sample the information in /proc/<pid>/statm it just wouldnt be
> possible. We have a few events like pagefaults and a few tracepoints as
> well - but more would be possible IMO.

vital MM stats are exposed via /proc/<pid> interfaces. Performance
monitoring is something optional MM VM stats are used for VM decision on
memory and process handling.