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List:       fedora-devel-list
Subject:    Re: Fedora 32 System-Wide Change proposal (late): Enable EarlyOOM
From:       Michael Catanzaro <mcatanzaro () gnome ! org>
Date:       2020-01-07 15:10:55
Message-ID: 1578409855.2801.1 () posteo ! net
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On Tue, Jan 7, 2020 at 11:23 am, Kamil Paral <kparal@redhat.com> wrote:
> In your example you forget that swap needs to filled almost to full 
> for early-oom to start reacting. That takes time during which the 
> system responsibility is abysmal. The UX difference happens only 
> after you've already suffered through a serious responsivity 
> degradation, and the only difference is the end state, *if* you've 
> managed to wait long enough for early-oom to kick in (which happens 
> earlier than kernel oom and with better results about which process 
> gets killed, according to Chris).

Right, we understand this. earlyoom (or a systemd-level OOM solution) 
is only half the solution. The other half will be fixing swap. That 
will probably require (a) reducing the amount of swap created by 
anaconda, and/or (b) swap on zram.

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