Re: [PATCH v5 0/8] perf/amd: Zen4 IBS extensions support (tool changes)

[Ravi Bangoria]

On 01-Jun-22 7:34 PM, Liang, Kan wrote:
> 
> 
> On 5/31/2022 11:26 PM, Ravi Bangoria wrote:
>> Kernel side of changes have already been applied to linus/master
>> (except amd-ibs.h header). This series contains perf tool changes.
>>
>> Kan, I don't have any machine with heterogeneou cpus. It would be
>> helpful if you can check HEADER_PMU_CAPS on Intel ADL machine.
>>
> 
> I tried the patch 2-5 on a hybrid machine. I didn't see any regression with perf report --header-only option.
> 
> Without the patch 2-5,
> # perf report --header-only | grep capabilities
> # cpu_core pmu capabilities: branches=32, max_precise=3, pmu_name=alderlake_hybrid
> # cpu_atom pmu capabilities: branches=32, max_precise=3, pmu_name=alderlake_hybrid
> 
> With the patch 2-5,
> # ./perf report --header-only | grep capabilities
> # cpu_core pmu capabilities: branches=32, max_precise=3, pmu_name=alderlake_hybrid
> # cpu_atom pmu capabilities: branches=32, max_precise=3, pmu_name=alderlake_hybrid
> 

Perfect! Thanks for testing, Kan.

Arnaldo, since kernel patches are already applied to linus' tree for -rc1,
would you be able to include this series in your -rc1 PR?

Thanks,
Ravi