linux-kernel - Re: [PATCH 1/3] perf vendor events intel: Metric fixes for SKX/CLX

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Date:   Tue, 2 Jul 2019 12:58:48 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     jolsa@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/3] perf vendor events intel: Metric fixes for SKX/CLX

Em Fri, Jun 28, 2019 at 03:07:35PM -0700, Andi Kleen escreveu:
> From: Andi Kleen <ak@...ux.intel.com>

Thanks, applied the three patches.

- Arnaldo
 
> - Add a missing filter for the DRAM_Latency / DRAM_Parallel_Reads metrics
> - Remove the useless PMM_* metrics from Skylake
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  .../arch/x86/cascadelakex/clx-metrics.json    |  4 ++--
>  .../arch/x86/skylakex/skx-metrics.json        | 22 ++-----------------
>  2 files changed, 4 insertions(+), 22 deletions(-)
> 
> diff --git a/tools/perf/pmu-events/arch/x86/cascadelakex/clx-metrics.json b/tools/perf/pmu-events/arch/x86/cascadelakex/clx-metrics.json
> index 1a1a3501180a..a382b115633d 100644
> --- a/tools/perf/pmu-events/arch/x86/cascadelakex/clx-metrics.json
> +++ b/tools/perf/pmu-events/arch/x86/cascadelakex/clx-metrics.json
> @@ -314,13 +314,13 @@
>          "MetricName": "DRAM_BW_Use"
>      },
>      {
> -        "MetricExpr": "1000000000 * ( cha@...nt\\=0x36\\\\\\,umask\\=0x21@ / cha@...nt\\=0x35\\\\\\,umask\\=0x21@ ) / ( cha_0@...nt\\=0x0@ / duration_time )",
> +	"MetricExpr": "1000000000 * ( cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ / cha@...nt\\=0x35\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ ) / ( cha_0@...nt\\=0x0@ / duration_time )",
>          "BriefDescription": "Average latency of data read request to external memory (in nanoseconds). Accounts for demand loads and L1/L2 prefetches",
>          "MetricGroup": "Memory_Lat",
>          "MetricName": "DRAM_Read_Latency"
>      },
>      {
> -        "MetricExpr": "cha@...nt\\=0x36\\\\\\,umask\\=0x21@ / cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,thresh\\=1@",
> +	"MetricExpr": "cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ / cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,thresh\\=1\\\\\\,config\\=0x40433@",
>          "BriefDescription": "Average number of parallel data read requests to external memory. Accounts for demand loads and L1/L2 prefetches",
>          "MetricGroup": "Memory_BW",
>          "MetricName": "DRAM_Parallel_Reads"
> diff --git a/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json b/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json
> index 56e03ba771f4..35b255fa6a79 100644
> --- a/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json
> +++ b/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json
> @@ -314,35 +314,17 @@
>          "MetricName": "DRAM_BW_Use"
>      },
>      {
> -        "MetricExpr": "1000000000 * ( cha@...nt\\=0x36\\\\\\,umask\\=0x21@ / cha@...nt\\=0x35\\\\\\,umask\\=0x21@ ) / ( cha_0@...nt\\=0x0@ / duration_time )",
> +	"MetricExpr": "1000000000 * ( cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ / cha@...nt\\=0x35\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ ) / ( cha_0@...nt\\=0x0@ / duration_time )",
>          "BriefDescription": "Average latency of data read request to external memory (in nanoseconds). Accounts for demand loads and L1/L2 prefetches",
>          "MetricGroup": "Memory_Lat",
>          "MetricName": "DRAM_Read_Latency"
>      },
>      {
> -        "MetricExpr": "cha@...nt\\=0x36\\\\\\,umask\\=0x21@ / cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,thresh\\=1@",
> +	"MetricExpr": "cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,config\\=0x40433@ / cha@...nt\\=0x36\\\\\\,umask\\=0x21\\\\\\,thresh\\=1\\\\\\,config\\=0x40433@",
>          "BriefDescription": "Average number of parallel data read requests to external memory. Accounts for demand loads and L1/L2 prefetches",
>          "MetricGroup": "Memory_BW",
>          "MetricName": "DRAM_Parallel_Reads"
>      },
> -    {
> -        "MetricExpr": "( 1000000000 * ( imc@...nt\\=0xe0\\\\\\,umask\\=0x1@ / imc@...nt\\=0xe3@ ) / imc_0@...nt\\=0x0@ ) if 1 if 0 == 1 else 0 else 0",
> -        "BriefDescription": "Average latency of data read request to external 3D X-Point memory [in nanoseconds]. Accounts for demand loads and L1/L2 data-read prefetches",
> -        "MetricGroup": "Memory_Lat",
> -        "MetricName": "MEM_PMM_Read_Latency"
> -    },
> -    {
> -        "MetricExpr": "( ( 64 * imc@...nt\\=0xe3@ / 1000000000 ) / duration_time ) if 1 if 0 == 1 else 0 else 0",
> -        "BriefDescription": "Average 3DXP Memory Bandwidth Use for reads [GB / sec]",
> -        "MetricGroup": "Memory_BW",
> -        "MetricName": "PMM_Read_BW"
> -    },
> -    {
> -        "MetricExpr": "( ( 64 * imc@...nt\\=0xe7@ / 1000000000 ) / duration_time ) if 1 if 0 == 1 else 0 else 0",
> -        "BriefDescription": "Average 3DXP Memory Bandwidth Use for Writes [GB / sec]",
> -        "MetricGroup": "Memory_BW",
> -        "MetricName": "PMM_Write_BW"
> -    },
>      {
>          "MetricExpr": "cha_0@...nt\\=0x0@",
>          "BriefDescription": "Socket actual clocks when any core is active on that socket",
> -- 
> 2.20.1

-- 

- Arnaldo