Re: Limit CPU usage of a process?

Are these commandline options or stuff you have to program into your apps?
They also seem to be more geared towards giving different processes
different priorities of which gets to use the highest CPU.

This doesn't seem to be very helpful for us who are looking for a simple
commandline option which lets you set max CPU usage in percentage for any
given process.

https://github.com/opsengine/cpulimit did this, which is the closest thing
I've found so far.

All the best,
Murk



On Tue, May 29, 2018 at 8:48 PM, Raul Miller <rauldmiller@gmail.com> wrote:

> There's https://man.openbsd.org/nice.1
>
> You might be describing https://man.openbsd.org/setrlimit.2 or the
> ulimit shell builtin (ulimit -t). But you might not want what you are
> describing, if that is the case.
>
> --
> Raul
>
>
> On Tue, May 29, 2018 at 2:35 PM, BergenBergen BergenBergen
> <murk.fletcher@gmail.com> wrote:
> > Browser or not, how *does* one cap CPU resources though? I think it's a
> > very interesting question, and I'm sorta baffled by the fact that the
> > demand for this kinda thing hasn't been any higher.
> >
> > All the best,
> > Murk
> >
> > On Tue, May 29, 2018 at 8:10 PM, Dumitru Mișu Moldovan <dumol@l10n.ro>
> > wrote:
> >
> >> On 05/27/18 13:07, Maximilian Pichler wrote:
> >>
> >>> Is it possible to limit the CPU usage of a given process to, say, 20%?
> >>>
> >>> I'd like to slow down the web browser since it is draining my laptop's
> >>> battery. With enough tabs open it's often consuming ~50% of CPU but
> >>> not doing anything productive. Apparently with RLIMIT_CPU in
> >>> setrlimit(2) the total CPU time of a process can be limited. Can a
> >>> similar limit be set for the percentage?
> >>>
> >>
> >> Honest question… Have you tried blocking ads with something like uBlock
> >> Origin? I use several approaches to make web browsing palatable on old
> >> hardware, and blocking ads is what makes the biggest difference for me.
> >> (Using NoScript or equivalents to selectively enable JavaScript for
> sites
> >> where I actually need it is a distant second.)
> >>
> >> Capping CPU resources is not the way to go on a laptop in my opinion,
> >> unless you have some demanding job that always runs in the background in
> >> your browser, and that's a problem by itself in your scenario. Capping
> >> will not change the fact that you'll still spend the same resources on
> >> loading web pages, however it will slow you down and annoy you.
> >>
> >>
>