Re: Expensive memory.stat + cpu.stat reads

[Shakeel Butt]

Hi Ivan,

(sorry for late response as I was away)

On Fri, Aug 11, 2023 at 3:35 PM Ivan Babrou <ivan@xxxxxxxxxxxxxx> wrote:
[...]
> > > I spent some time looking into this and I think I landed on a fix:
> > >
> > > * https://github.com/bobrik/linux/commit/50b627811d54
> > >
> > > I'm not 100% sure if it's the right fix for the issue, but it reduces
> > > the runtime significantly.

In your patch, can you try to replace mem_cgroup_flush_stats() with
mem_cgroup_flush_stats_ratelimited() instead of cgroup_rstat_flush().
I wanted to see if you observe any stale stats issues.