> On Mo, 12.08.19 09:40, Chris Murphy (lists(a)colorremedies.com) wrote:
>
>
> Ideally, GNOME would run all its apps as systemd --user services. We
> could then set DefaultMemoryHigh= globally for the systemd --user
> instance to some percentage value (which is taken relative to the
> physical RAM size). This would then mean every user app individually
> could use — let's say — 75% of the physical RAM size and when it wants
> more it would be penalized during reclaim compared to apps using less.
>
> If GNOME would run all apps as user services we could do various other
> nice things too. For example, it could dynamically assign the fg app
> more CPU/IO weight than the bg apps, if the system is starved of
> both.
>
Running each app as systemd --user services is something we've been trying to
encourage teams to do at FB. It lets monitor things much better using the
cgroup control files.
In addition, it lets us configure oomd (
https://github.com/facebookincubator/oomd ) to do much more intelligent things
than kill the entire session. oomd is being proposed as a fedora package right
now. I think the last missing piece for oomd to be really useful on desktop
systems is the --user slice changes.
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