Re: [PATCH v3 1/4] mm/ksm: add "smart" page scanning mode

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On Tue, 26 Sep 2023 09:13:31 -0700 Stefan Roesch <shr@xxxxxxxxxxxx> wrote:

> > Thinking about it, what are the cons of just enabling this always and not
> > exposing new toggles? Alternatively, we could make this a compile-time option.
> >
> > In general, LGTM, just curious if we really have to make this configurable.
> >
> 
> The only downside I can see is that it might take a longer time for some
> pages to be de-duplicated (a new candidate page is added, but its
> duplicate is skipped in this round). So it will take longer to
> de-duplicate this page.
> 
> I tested with more than one workload, but it might be useful to get some
> data with additional workloads. I was thinking of enabling it after one or
> two releases.

We could keep the tunable and make it default "on"?




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