How to increase maximum user cpu usage allowed on a multi core system?

stan stanl-fedorauser at vfemail.net
Wed Mar 18 15:01:35 UTC 2015


On Tue, 17 Mar 2015 16:53:33 -0400
Tom H <tomh0665 at gmail.com> wrote:

> On Tue, Mar 17, 2015 at 1:58 PM, Heinz Diehl <htd+ml at fritha.org>
> wrote:
> > CFS is not required at all, and so are cgroups. Any kernel with the
> > BFS patch applied will run just fine on Fedora. In fact, most of
> > the time I run a kernel using both BFS and the BFQ I/O-scheduler,
> > on Fedora and Arch.
> 
> "CONFIG_CGROUPS (it is OK to disable all controllers)" is listed under
> "REQUIREMENTS" in the systemd README.
> 
> I don't know what the difference is between not compiling cgroup
> suppport into the kernel and compiling it in but disabling all
> controllers but it looks like that your assumption that cgroup support
> isn't required is wrong.

Well, here's a conundrum.  Heinz uses it and it works, but the
documentation says it shouldn't work.  =><=

There must be some functionality disabled on Heinz' system.  Gracefully
disabled, or everything would crash.

Heinz, what does cat /proc/cgroups show?


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