linux-kernel - Re: [PATCH v2 08/11] perf metrics: fix parse errors in power8 metrics

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Date:   Wed, 22 Apr 2020 17:31:36 -0500
From:   Paul Clarke <pc@...ibm.com>
To:     Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Haiyan Song <haiyanx.song@...el.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Song Liu <songliubraving@...com>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        John Garry <john.garry@...wei.com>,
        Leo Yan <leo.yan@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc:     Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2 08/11] perf metrics: fix parse errors in power8 metrics

On 4/22/20 5:04 PM, Ian Rogers wrote:
> Mismatched parentheses.
> 
> Fixes: dd81eafacc52 (perf vendor events power8: Cpi_breakdown & estimated_dcache_miss_cpi metrics)
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/pmu-events/arch/powerpc/power8/metrics.json | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/pmu-events/arch/powerpc/power8/metrics.json b/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
> index bffb2d4a6420..ad71486a38e3 100644
> --- a/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
> +++ b/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
> @@ -169,7 +169,7 @@
>      },
>      {
>          "BriefDescription": "Cycles GCT empty where dispatch was held",
> -        "MetricExpr": "(PM_GCT_NOSLOT_DISP_HELD_MAP + PM_GCT_NOSLOT_DISP_HELD_SRQ + PM_GCT_NOSLOT_DISP_HELD_ISSQ + PM_GCT_NOSLOT_DISP_HELD_OTHER) / PM_RUN_INST_CMPL)",
> +        "MetricExpr": "(PM_GCT_NOSLOT_DISP_HELD_MAP + PM_GCT_NOSLOT_DISP_HELD_SRQ + PM_GCT_NOSLOT_DISP_HELD_ISSQ + PM_GCT_NOSLOT_DISP_HELD_OTHER) / PM_RUN_INST_CMPL",

OK. (Thank you!)

>          "MetricGroup": "cpi_breakdown",
>          "MetricName": "gct_empty_disp_held_cpi"
>      },
> @@ -886,7 +886,7 @@
>      },
>      {
>          "BriefDescription": "GCT slot utilization (11 to 14) as a % of cycles this thread had atleast 1 slot valid",
> -        "MetricExpr": "PM_GCT_UTIL_11_14_ENTRIES / ( PM_RUN_CYC - PM_GCT_NOSLOT_CYC) * 100",
> +        "MetricExpr": "PM_GCT_UTIL_11_14_ENTRIES / ( PM_RUN_CYC - PM_GCT_NOSLOT_CYC ) * 100",

I think this is just a whitespace change?  Is it necessary?
Curiosity, more than complaint.

>          "MetricGroup": "general",
>          "MetricName": "gct_util_11to14_slots_percent"
>      },

Reviewed-by: Paul A. Clarke <pc@...ibm.com>

PC