perf vendor events intel: Alderlake/rocketlake metric fixes
authorIan Rogers <irogers@google.com>
Thu, 4 Jan 2024 07:42:56 +0000 (23:42 -0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 4 Jan 2024 20:37:55 +0000 (17:37 -0300)
commit982b6acec662ff06e9e89c61838f297f6544a84d
tree35521385c8963ccf146b3b2a308e2a9e59616fb5
parentec5257d99e6894d65fae772ca43c53b3d6855115
perf vendor events intel: Alderlake/rocketlake metric fixes

Fix that the core PMU is being specified for 2 uncore events. Specify
a PMU for the alderlake UNCORE_FREQ metric.

Conversion script updated in:

  https://github.com/intel/perfmon/pull/126

Committer testing:

Before this patch the "perf all metricgroups test" was failing, now:

  root@number:~# perf test metric
   10: PMU events                                                      :
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok
   10.5: Parsing of metric thresholds with fake PMUs                   : Ok
   61: Parse and process metrics                                       : Ok
   98: perf stat metrics (shadow stat) test                            : Skip
  101: perf all metricgroups test                                      : Ok
  102: perf all metrics test                                           : FAILED!
  107: perf metrics value validation                                   : Ok
  root@number:~#

Test 102 is failing for another reason, not being able to get as many
counters as needed, Ian Rogers suggested disabling the NMI watchdog to
have more counters available:

  root@number:/home/acme# cat /proc/sys/kernel/nmi_watchdog
  1
  root@number:/home/acme# echo 0 > /proc/sys/kernel/nmi_watchdog
  root@number:/home/acme# perf test 102
  102: perf all metrics test                                           : Ok
  root@number:/home/acme#

Closes: https://lore.kernel.org/lkml/ZZWOdHXJJ_oecWwm@kernel.org/
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240104074259.653219-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/pmu-events/arch/x86/alderlake/adl-metrics.json
tools/perf/pmu-events/arch/x86/rocketlake/rkl-metrics.json