Re: [PATCH v3 00/21] Cache Aware Scheduling

[Qais Yousef]

On 02/20/26 09:45, Peter Zijlstra wrote:
> On Fri, Feb 20, 2026 at 03:41:27AM +0000, Qais Yousef wrote:
> 
> > IMHO I see people are constantly tripping over task placement being too simple
> > and need smarter decision making process.
> 
> So at the same time we're always having trouble because its too
> expensive for some.

If they don't want it, they can turn it off with a simple debugfs/sched_feat
toggle? I think our way out of this dilemma is to make it their choice. You
know, many problems can disappear if you make it another person's problem :-)
Joking aside, I am trying to implement scheduler profiles in Sched QoS so
that users can pick throughput, interactive, etc and toggle few debugfs on
their behalf. Hopefully this will help abstract the problem while still
maintain our kernel development mostly as-is. I don't think we are forced into
a choice in many cases (at kernel level). But what do I know :-)