linux-kernel - Re: [PATCH v7 5/8] perf test: Make matching

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Message-ID: <e3c50560-c53c-5cda-8d26-e5427a2200e4@linux.alibaba.com>
Date:   Fri, 25 Aug 2023 14:30:17 +0800
From:   Jing Zhang <renyu.zj@...ux.alibaba.com>
To:     Ian Rogers <irogers@...gle.com>
Cc:     John Garry <john.g.garry@...cle.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-doc@...r.kernel.org,
        Zhuo Song <zhuo.song@...ux.alibaba.com>,
        Shuai Xue <xueshuai@...ux.alibaba.com>
Subject: Re: [PATCH v7 5/8] perf test: Make matching_pmu effective



在 2023/8/25 下午12:27, Ian Rogers 写道:
> On Mon, Aug 21, 2023 at 1:36 AM Jing Zhang <renyu.zj@...ux.alibaba.com> wrote:
>>
>> The perf_pmu_test_event.matching_pmu didn't work. No matter what its
>> value is, it does not affect the test results. So let matching_pmu be
>> used for matching perf_pmu_test_pmu.pmu.name.
> 
> Could you rebase this onto the latest perf-tools-next, I'd like to test this.
> 

Ok, I will rebase it onto the latest perf-tools-next in next version.

Thanks,
Jing

> Thanks,
> Ian
> 
>> Signed-off-by: Jing Zhang <renyu.zj@...ux.alibaba.com>
>> Reviewed-by: John Garry <john.g.garry@...cle.com>
>> ---
>>  tools/perf/tests/pmu-events.c | 9 +++++++--
>>  1 file changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
>> index 1dff863b..3204252 100644
>> --- a/tools/perf/tests/pmu-events.c
>> +++ b/tools/perf/tests/pmu-events.c
>> @@ -238,7 +238,7 @@ struct perf_pmu_test_pmu {
>>         },
>>         .alias_str = "event=0x2b",
>>         .alias_long_desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ",
>> -       .matching_pmu = "uncore_sys_ddr_pmu",
>> +       .matching_pmu = "uncore_sys_ddr_pmu0",
>>  };
>>
>>  static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {
>> @@ -252,7 +252,7 @@ struct perf_pmu_test_pmu {
>>         },
>>         .alias_str = "config=0x2c",
>>         .alias_long_desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ",
>> -       .matching_pmu = "uncore_sys_ccn_pmu",
>> +       .matching_pmu = "uncore_sys_ccn_pmu4",
>>  };
>>
>>  static const struct perf_pmu_test_event *sys_events[] = {
>> @@ -599,6 +599,11 @@ static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)
>>                         struct pmu_event const *event = &test_event->event;
>>
>>                         if (!strcmp(event->name, alias->name)) {
>> +                               if (strcmp(pmu_name, test_event->matching_pmu)) {
>> +                                       pr_debug("testing aliases uncore PMU %s: mismatched matching_pmu, %s vs %s\n",
>> +                                                       pmu_name, test_event->matching_pmu, pmu_name);
>> +                                       continue;
>> +                               }
>>                                 if (compare_alias_to_test_event(alias,
>>                                                         test_event,
>>                                                         pmu_name)) {
>> --
>> 1.8.3.1
>>