Re: [RFC 0/4] Introduce unbalance proactive reclaim

[Michal Hocko]

On Tue 14-11-23 10:54:05, Michal Hocko wrote:
> On Mon 13-11-23 16:26:00, Huan Yang wrote:
> [...]
> > However, considering that we need to perform proactive reclaim in batches,
> > suppose that only 5% of the use-once page cache in this memcg can be
> > reclaimed,
> > but we need to call proactive memory reclaim step by step, such as 5%, 10%,
> > 15% ... 100%.
> 
> You haven't really explained this and I have asked several times IIRC.
> Why do you even need to do those batches? Why cannot you simply relly on
> the memory pressure triggering the memory reclaim? Do you have any
> actual numbers showing that being pro-active results in smaller
> latencies or anything that would show this is actually needed?

Just noticed dcd2eff8-400b-4ade-a5b2-becfe26b437b@xxxxxxxx, will reply
there.

-- 
Michal Hocko
SUSE Labs