Re: [RFC PATCH] mm: don't promote exclusive file folios of dying processes

[David Hildenbrand]

On 12.04.25 10:58, Barry Song wrote:
> From: Barry Song <v-songbaohua@xxxxxxxx>
>
> Promoting exclusive file folios of a dying process is unnecessary and
> harmful. For example, while Firefox is killed and LibreOffice is
> launched, activating Firefox's young file-backed folios makes it
> harder to reclaim memory that LibreOffice doesn't use at all.

Do we know when it is reasonable to promote any folios of a dying process?

Assume you restart Firefox, would it really matter to promote them when 
unmapping? New Firefox would fault-in / touch the ones it really needs 
immediately afterwards?

--
Cheers,

David / dhildenb