lkml.org 
[lkml]   [2022]   [Aug]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 8/9] sched/psi: add kernel cmdline parameter psi_inner_cgroup
From
On 2022/8/4 01:58, Tejun Heo wrote:
> Hello,
>
> On Wed, Aug 03, 2022 at 08:17:22PM +0800, Chengming Zhou wrote:
>>> Assuming the above isn't wrong, if we can figure out how we can re-enable
>>> it, which is more difficult as the counters need to be resynchronized with
>>> the current state, that'd be ideal. Then, we can just allow each cgroup to
>>> enable / disable PSI reporting dynamically as they see fit.
>>
>> This method is more fine-grained but more difficult like you said above.
>> I think it may meet most needs to disable PSI stats in intermediate cgroups?
>
> So, I'm not necessarily against implementing something easier but we at
> least wanna get the interface right, so that if we decide to do the full
> thing later we can easily expand on the existing interface. ie. let's please
> not be too hacky. I don't think it'd be that difficult to implement
> per-cgroup disable-only operation that we can later expand to allow
> re-enabling, right?

Agree, the interface is important, per-cgroup disable-only operation maybe easier
to implement. I will look into this more.

Thanks!

\
 
 \ /
  Last update: 2022-08-04 04:02    [W:0.122 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site