Re: [PATCH 0/3] memdelay: memory health metric for systems and workloads
From: Mike Galbraith
Date: Fri Jul 28 2017 - 23:42:05 EST
On Sat, 2017-07-29 at 04:48 +0200, Mike Galbraith wrote:
> On Thu, 2017-07-27 at 11:30 -0400, Johannes Weiner wrote:
> >
> > Structure
> >
> > The first patch cleans up the different loadavg callsites and macros
> > as the memdelay averages are going to be tracked using these.
> >
> > The second patch adds a distinction between page cache transitions
> > (inactive list refaults) and page cache thrashing (active list
> > refaults), since only the latter are unproductive refaults.
> >
> > The third patch finally adds the memdelay accounting and interface:
> > its scheduler side identifies productive and unproductive task states,
> > and the VM side aggregates them into system and cgroup domain states
> > and calculates moving averages of the time spent in each state.
>
> What tree is this against? Âttwu asm delta says "measure me".
(mm/master.. gee)