Re: [PATCH 3/3] mm: oom: show unreclaimable slab info when unreclaimable slabs > user memory

[Yang Shi]

On 10/17/17 2:50 PM, David Rientjes wrote:
> On Wed, 18 Oct 2017, Yang Shi wrote:
>
> > > > > Please simply dump statistics for all slab caches where the memory
> > > > > footprint is greater than 5% of system memory.
> > > >
> > > > Unconditionally? User controlable?
> > >
> > > Unconditionally, it's a single line of output per slab cache and there
> > > can't be that many of them if each is using >5% of memory.
> >
> > Soïyou mean just dump the single slab cache if its size > 5% of system memory
> > instead of all slab caches?
>
> Yes, this should catch occurrences of "huge unreclaimable slabs", right?

Yes, it sounds so. Although single "huge" unreclaimable slab might not 
result in excessive slabs use in a whole, but this would help to filter 
out "small" unreclaimable slab.

Yang

>