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

[Huan Yang]

在 2023/11/9 0:14, Andrew Morton 写道:
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> On Wed,  8 Nov 2023 14:58:11 +0800 Huan Yang <link@xxxxxxxx> wrote:
>
> > For example, when an application is pushed to the background and frozen,
> > it may not be opened for a long time, and we can safely reclaim the
> > application's anonymous pages, but we do not want to touch the file pages.
> This paragraph is key to the entire patchset and it would benefit from
> some expanding upon.
>
> If the application is dormant, why on earth would we want to evict its
> text but keep its data around?
In fact, we currently use this method to only reclaim application 
anonymous pages,
because we believe that the refault cost of reclaiming anonymous pages 
is relatively
small, especially when using zram and only proactively reclaiming the 
anonymous
pages of frozen applications.