Re: [PATCH] arm64: defconfig: enable CONFIG_SCHED_CLUSTER

[Shijie Huang]

On 11/08/2025 23:13, Jeremy Linton wrote:
> Hi,
>
> On 8/7/25 9:55 PM, Huang Shijie wrote:
> > In the server, if some workload which will create lot of
> > tasks, and will have many task migrations, we can get better
> > performance when we enable the CONFIG_SCHED_CLUSTER.
> >
> > For example, the Specjbb may have better performance:
> >      Critical-jops : 26%
> >      Max-jops      : 7%
> >
> > So enable it by default.
>
> From what I've seen, SCHED_CLUSTER seems to be a bit of give and take 
> depending on benchmark and machine. I'm not sure if it should be 
> default enabled or not, but it would really be nice to have at least a 
> larger sweep of benchmarks/machines in order to be sure of the decision.

Yes, I agree.

Maybe I should create a patch only enable SCHED_CLUSTER for Ampere's 
machine.


Thanks


>