KCGroups in KDEreview

Henri Chain henri.chain at enioka.com
Thu Nov 26 10:46:10 GMT 2020

On Friday, November 20, 2020 8:29:33 PM CET Jacky Alcine wrote:
> This is exciting! Is it needed to explicitly put "cgroups" in the name?
> (What I'm really asking is if there's a way to have this work in a
> cross-platform way)

Yes, this library takes advantage of cgroups resource control, and nothing 
truly comparable exists outside of linux. It does so by leveraging systemd 
which is also a requirement.
The process grouping part can probably be ported however. Windows and Mac OS X 
both have this kind of thing, but it might require escalation.
I currently don't have plans to make this a platform independent library but 
it could be a long term goal.

> On Fri, Nov 20, 2020, at 05:55, Henri Chain wrote:
> > Hello everyone,
> > 
> > KCgroups has been moved to KDEReview !
> > What is that, you ask ? It's a library that wraps the systemd dbus API to
> > expose a higher-level concept of desktop application and allow control of
> > its system resource usage (CPU, RAM, IO, etc).
> > 
> > It relies on the recent ability of plasma to launch applications in their
> > own systemd scopes, with correspond to cgroups and provides a more robust
> > definition for an application (more details at
> > https://lwn.net/Articles/834329/ ) .
> > 
> > The main use of the library is to expose related resource control settings
> > for those applications, at a user space level that other KDE applications
> > and frameworks can use, including consumption straight from QML as
> > demonstrated in the test application.
> > 
> > KCgroups is intended to become a (Tier 1) framework. A first user of this
> > library might be the foreground window CPU booster daemon that is
> > available
> > here:
> > https://invent.kde.org/libraries/kcgroups/-/tree/work/foreground-booster
> > 
> > Packages are already available for both Neon and Arch Linux.
> > 
> > Looking forward to your feedback and ideas for using this,
> > Henri

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