Re: [PATCH] doc: cgroup: correct the wrong information about measure of memory pressure

[Yang Shi]

On 2/18/19 1:05 PM, Tejun Heo wrote:
> On Sat, Feb 16, 2019 at 08:56:04AM +0800, Yang Shi wrote:
> > Since PSI has implemented some kind of measure of memory pressure, the
> > statement about lack of such measure is not true anymore.
> >
> > Cc: Tejun Heo <tj@xxxxxxxxxx>
> > Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
> > Cc: Jonathan Corbet <corbet@xxxxxxx>
> > Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
> > ---
> >   Documentation/admin-guide/cgroup-v2.rst | 3 +--
> >   1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
> > index 7bf3f12..9a92013 100644
> > --- a/Documentation/admin-guide/cgroup-v2.rst
> > +++ b/Documentation/admin-guide/cgroup-v2.rst
> > @@ -1310,8 +1310,7 @@ network to a file can use all available memory but can also operate as
> >   performant with a small amount of memory.  A measure of memory
> >   pressure - how much the workload is being impacted due to lack of
> >   memory - is necessary to determine whether a workload needs more
> > -memory; unfortunately, memory pressure monitoring mechanism isn't
> > -implemented yet.
> > +memory.
> Maybe refer to PSI?

I thought so too, but the above "memory.pressure" has already referred 
to PSI. So, I was not sure if we should duplicate PSI information.

Thanks,
Yang

> Thanks.