[PATCH] arm64: defconfig: enable CONFIG_SCHED_CLUSTER

Shijie Huang shijie at amperemail.onmicrosoft.com
Mon Aug 11 20:05:49 PDT 2025


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


>
>



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