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Message-ID: <CAP-5=fWGrzsO15kszYvTGBus+ojxJg3bQMntJrcsfhpAAjiBmA@mail.gmail.com>
Date: Wed, 8 Jan 2025 08:18:45 -0800
From: Ian Rogers <irogers@...gle.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>, Caleb Biggers <caleb.biggers@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Adrian Hunter <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>, 
	Andreas Färber <afaerber@...e.de>, 
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, Weilin Wang <weilin.wang@...el.com>, 
	linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, 
	Perry Taylor <perry.taylor@...el.com>, Samantha Alt <samantha.alt@...el.com>, 
	Edward Baker <edward.baker@...el.com>, Michael Petlan <mpetlan@...hat.com>
Subject: Re: [PATCH v1 01/22] perf vendor events: Update Alderlake events/metrics

On Wed, Jan 8, 2025 at 6:51 AM Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
>
> On Mon, Dec 09, 2024 at 02:27:38PM -0800, Ian Rogers wrote:
> > Update events from v1.27 to v1.28.
> > Update TMA metrics from 4.8 to 5.01.
> >
> > Bring in the event updates v1.28:
> > https://github.com/intel/perfmon/commit/801f43f22ec6bd23fbb5d18860f395d61e7f4081
> >
> > The TMA 5.01 update is from (with subsequent fixes):
> > https://github.com/intel/perfmon/commit/1d72913b2d938781fb28f3cc3507aaec5c22d782
>
> On my workstation this patch is causing:
>
> ⬢ [acme@...lbox perf-tools-next]$ perf stat sleep 1
> event syntax error: '..ED.L3_HIT/,cpu/DTLB_LOAD_MISSES.STLB_HIT,cmask=0x1,metric-id=cpu!3DTLB_LOAD_MISSES.STLB_HIT!0cmask!20x1!3/,topdown-mem-bound/metric-id=topdown!1mem!1bound/,cpu/UOPS_..'
>                                   \___ Bad event or PMU
>
> Unable to find PMU or event on a PMU of 'cpu'
>
>  Performance counter stats for 'sleep 1':
>
>               0.79 msec task-clock:u                     #    0.001 CPUs utilized
>                  0      context-switches:u               #    0.000 /sec
>                  0      cpu-migrations:u                 #    0.000 /sec
>                 68      page-faults:u                    #   86.026 K/sec
>            381,023      cpu_atom/instructions/u          #    0.36  insn per cycle              (60.24%)
>             92,367      cpu_core/instructions/u          #    0.44  insn per cycle              (39.76%)
>          1,064,063      cpu_atom/cycles/u                #    1.346 GHz                         (60.24%)
>            209,521      cpu_core/cycles/u                #    0.265 GHz                         (39.76%)
>             82,585      cpu_atom/branches/u              #  104.477 M/sec                       (60.24%)
>             19,921      cpu_core/branches/u              #   25.202 M/sec                       (39.76%)
>              6,049      cpu_atom/branch-misses/u         #    7.32% of all branches             (60.24%)
>              1,685      cpu_core/branch-misses/u         #    8.46% of all branches             (39.76%)
>
>        1.001365193 seconds time elapsed
>
>        0.000000000 seconds user
>        0.001284000 seconds sys
>
>
> ⬢ [acme@...lbox perf-tools-next]$ grep -m1 'model name' /proc/cpuinfo
> model name      : Intel(R) Core(TM) i7-14700K
> ⬢ [acme@...lbox perf-tools-next]$
>
> And on the notebook, that is also hybrid:
>
> acme@x1:~$ grep -m1 'model name' /proc/cpuinfo
> model name      : 13th Gen Intel(R) Core(TM) i7-1365U
>
> ⬢ [acme@...lbox perf-tools-next]$ perf stat sleep 0.1
> event syntax error: '..ED.L3_HIT/,cpu/DTLB_LOAD_MISSES.STLB_HIT,cmask=0x1,metric-id=cpu!3DTLB_LOAD_MISSES.STLB_HIT!0cmask!20x1!3/,topdown-mem-bound/metric-id=topdown!1mem!1bound/,cpu/UOPS_..'
>                                   \___ Bad event or PMU
>
> Unable to find PMU or event on a PMU of 'cpu'
>
>  Performance counter stats for 'sleep 0.1':
>
>               0.94 msec task-clock:u                     #    0.009 CPUs utilized
>                  0      context-switches:u               #    0.000 /sec
>                  0      cpu-migrations:u                 #    0.000 /sec
>                 66      page-faults:u                    #   70.334 K/sec
>            308,869      cpu_atom/instructions/u          #    0.50  insn per cycle              (51.07%)
>            209,685      cpu_core/instructions/u          #    0.75  insn per cycle              (48.93%)
>            616,738      cpu_atom/cycles/u                #    0.657 GHz                         (51.07%)
>            281,210      cpu_core/cycles/u                #    0.300 GHz                         (48.93%)
>             63,094      cpu_atom/branches/u              #   67.237 M/sec                       (51.07%)
>             48,598      cpu_core/branches/u              #   51.789 M/sec                       (48.93%)
>              5,086      cpu_atom/branch-misses/u         #    8.06% of all branches             (51.07%)
>              2,653      cpu_core/branch-misses/u         #    5.46% of all branches             (48.93%)
>
>        0.102117022 seconds time elapsed
>
>        0.001682000 seconds user
>        0.000000000 seconds sys
>
> ⬢ [acme@...lbox perf-tools-next]$

Thanks Arnaldo, it looks like this problem exists on all the hybrid
metrics which are sourced from the following (look for cpu@ that
should be cpu_core@):
https://github.com/intel/perfmon/blob/main/ADL/metrics/perf/alderlake_metrics_goldencove_core_perf.json
https://github.com/intel/perfmon/blob/main/ARL/metrics/perf/arrowlake_metrics_lioncove_core_perf.json
https://github.com/intel/perfmon/blob/main/LNL/metrics/perf/lunarlake_metrics_lioncove_core_perf.json
https://github.com/intel/perfmon/blob/main/MTL/metrics/perf/meteorlake_metrics_redwoodcove_core_perf.json
I'll need Caleb to do a new version of these metrics before I can send
out the updated version.

Thanks,
Ian

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