linux-kernel - Re: [PATCH v2 5/5] perf vendor events: Add JSON metrics for Yitian 710 DDR

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Message-ID: <5a90f26d-980f-794e-c620-09d50dd9e310@linux.alibaba.com>
Date:   Mon, 8 May 2023 19:40:29 +0800
From:   Jing Zhang <renyu.zj@...ux.alibaba.com>
To:     Shuai Xue <xueshuai@...ux.alibaba.com>,
        John Garry <john.g.garry@...cle.com>,
        Ian Rogers <irogers@...gle.com>, Will Deacon <will@...nel.org>
Cc:     James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Ilkka Koskinen <ilkka@...amperecomputing.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...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,
        Zhuo Song <zhuo.song@...ux.alibaba.com>
Subject: Re: [PATCH v2 5/5] perf vendor events: Add JSON metrics for Yitian
 710 DDR



在 2023/5/4 下午3:31, Shuai Xue 写道:
> 
> 
> On 2023/4/24 17:44, Jing Zhang wrote:
>> Add JSON metrics for T-HEAD Yitian 710 SoC DDR.
>>
>> Signed-off-by: Jing Zhang <renyu.zj@...ux.alibaba.com>
> 
> 
> Could you also update the Documentation/admin-guide/perf/alibaba_pmu.rst
> with some example of how to use these metrics?
> 

Yes，will do.

Thanks,
Jing


> Best Regards,
> Shuai
> 
> 
>> ---
>>  .../arch/arm64/freescale/yitian710/sys/metrics.json  | 20 ++++++++++++++++++++
>>  1 file changed, 20 insertions(+)
>>  create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/metrics.json
>>
>> diff --git a/tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/metrics.json
>> new file mode 100644
>> index 0000000..1a92477
>> --- /dev/null
>> +++ b/tools/perf/pmu-events/arch/arm64/freescale/yitian710/sys/metrics.json
>> @@ -0,0 +1,20 @@
>> +[
>> +	{
>> +		"MetricName": "ddr_read_bandwidth.all",
>> +		"BriefDescription": "The ddr read bandwidth(MB/s).",
>> +		"MetricGroup": "ddr",
>> +		"MetricExpr": "hif_rd * 64 / 1e6 / duration_time",
>> +		"ScaleUnit": "1MB/s",
>> +		"Unit": "ali_drw",
>> +		"Compat": "ali_drw_pmu"
>> +	},
>> +	{
>> +		"MetricName": "ddr_write_bandwidth.all",
>> +		"BriefDescription": "The ddr write bandwidth(MB/s).",
>> +		"MetricGroup": "ddr",
>> +		"MetricExpr": "(hif_wr + hif_rmw) * 64 / 1e6 / duration_time",
>> +		"ScaleUnit": "1MB/s",
>> +		"Unit": "ali_drw",
>> +		"Compat": "ali_drw_pmu"
>> +	}
>> +]