linux-kernel - Re: [PATCH v2] perf list: Display hybrid pmu events with cpu type

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Date:   Thu, 9 Sep 2021 15:56:51 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Ian Rogers <irogers@...gle.com>, Jin Yao <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v2] perf list: Display hybrid pmu events with cpu type


On 9/9/2021 3:37 PM, Ian Rogers wrote:
> On Thu, Sep 2, 2021 at 7:54 PM Jin Yao <yao.jin@...ux.intel.com> wrote:
>> Add a new option '--cputype' to perf-list to display core-only pmu events
>> or atom-only pmu events.
>>
>> Each hybrid pmu event has been assigned with a pmu name, this patch
>> compares the pmu name before listing the result.
> Would this work more broadly for any PMU type? If so perhaps pmu
> rather than cputype is a more appropriate option name?

It's not just the cpu pmu, because it still lists the uncore events, 
which makes sense.

If you want to match the pmu it probably would make sense to match it in 
the default matching for non option arguments in perf list. But that 
would be a different patch.

-Andi