On Wed, Feb 20, 2008 at 10:55:07AM -0600, [EMAIL PROTECTED] wrote:
> Quoting Nick Andrew ([EMAIL PROTECTED]):
> > On Tue, Feb 19, 2008 at 06:04:57PM -0800, Paul Menage wrote:
>
> Maybe
> Control Groups enable processes to be grouped into "cgroups"
> to facilitate tracking and resource management. For example
> a cgroup can tie a set of processes to a set of cpus using
> "cpusets".
That is much nicer, thanks.
> > When enabled, a new filesystem type "cgroup" is available
> > and can be mounted to control cpusets and other
> > resource/behaviour controllers.
I thought of something better to say than this. Enabling a new
pseudo filesystem is interesting, but it's not the main point.
Now:
config CGROUPS
bool "Control Group support"
help
- This option will let you use process cgroup subsystems
- such as Cpusets
+ Control Groups enable processes to be grouped into "cgroups"
+ to facilitate tracking and resource management. For example
+ a cgroup can tie a set of processes to a set of CPUs using
+ "cpusets".
- Say N if unsure.
+ See <file:Documentation/cgroups.txt> for more information.
+
+ If you say Y here, you probably want to enable one or
+ more of the cgroup subsystem options below.
+
+ If unsure, say N.
Regarding GROUP_SCHED and CGROUP_SCHED I am confused, what is the
difference between these two options?
config GROUP_SCHED
bool "Group CPU scheduler"
default y
help
This feature enables the CPU scheduler to recognize task groups
and control CPU bandwidth allocation to such task groups.
See <file:Documentation/sched-design-CFS.txt> for more information.
[...]
config CGROUP_SCHED
bool "Control groups"
depends on CGROUPS
help
This option allows you to create arbitrary task groups
using the "cgroup" pseudo filesystem and control
the CPU bandwidth allocated to each such task group.
See <file:Documentation/cgroups.txt> for more information
on the "cgroup" pseudo filesystem.
Also with the titles, IMHO "Control Group support" is semantically
equivalent to "Control groups" so I am doubly confused.
Nick.
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