Re: [PATCH] perf list: Skip the invalid hybrid pmu

[Jin, Yao]

Hi Arnaldo, hi Jiri,

On 6/17/2021 12:37 AM, Andi Kleen wrote:
> On 6/9/2021 10:16 PM, Jin Yao wrote:
> > On hybrid platform, such as Alderlake, if atom CPUs are offlined,
> > the kernel still exports the sysfs path '/sys/devices/cpu_atom/' for
> > 'cpu_atom' pmu but the file '/sys/devices/cpu_atom/cpus' is empty,
> > which indicates this is an invalid pmu.
>
>
> The patch looks good, but it would probably make sense to fix the kernel to avoid this too.
>
> Of course the tools patch would still be needed for older kernels.
>
> -Andi

Any comments for this patch?

Thanks
Jin Yao