linux-toradex.git/tools/perf/pmu-events/arch, branch master Linux kernel for Apalis and Colibri modules perf metrics: Make common stalled metrics conditional on having the event 2026-04-03T03:12:28+00:00 Ian Rogers irogers@google.com 2026-03-19T01:01:03+00:00 210259987d9a7bb8506f3e93c2ddbece15c13b15 The metric code uses the event parsing code but it generally assumes all events are supported. Arnaldo reported AMD supporting stalled-cycles-frontend but not stalled-cycles-backend [1]. An issue with this is that before parsing happens the metric code tries to share events within groups to reduce the number of events and multiplexing. If the group has some supported and not supported events, the whole group will become broken. To avoid this situation add has_event tests to the metrics for stalled-cycles-frontend and stalled-cycles-backend. has_events is evaluated when parsing the metric and its result constant propagated (with if-elses) to reduce the number of events. This means when the metric code considers sharing the events, only supported events will be shared. Note for backporting. This change updates tools/perf/pmu-events/empty-pmu-events.c a convenience file for builds on systems without python present. While the metrics.json code should backport easily there can be conflicts on empty-pmu-events.c. In this case the build will have left a file test-empty-pmu-events.c that can be copied over empty-pmu-events.c to resolve issues and make an appropriate empty-pmu-events.c for the json in the source tree at the time of the build. [1] https://lore.kernel.org/lkml/abm1nR-2xjOUBroD@x1/ Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Closes: https://lore.kernel.org/lkml/abm1nR-2xjOUBroD@x1/ Fixes: c7adeb0974f1 ("perf jevents: Add set of common metrics based on default ones") Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The metric code uses the event parsing code but it generally assumes
all events are supported. Arnaldo reported AMD supporting
stalled-cycles-frontend but not stalled-cycles-backend [1]. An issue
with this is that before parsing happens the metric code tries to
share events within groups to reduce the number of events and
multiplexing. If the group has some supported and not supported
events, the whole group will become broken. To avoid this situation
add has_event tests to the metrics for stalled-cycles-frontend and
stalled-cycles-backend. has_events is evaluated when parsing the
metric and its result constant propagated (with if-elses) to reduce
the number of events. This means when the metric code considers
sharing the events, only supported events will be shared.

Note for backporting. This change updates
tools/perf/pmu-events/empty-pmu-events.c a convenience file for builds
on systems without python present. While the metrics.json code should
backport easily there can be conflicts on empty-pmu-events.c. In this
case the build will have left a file test-empty-pmu-events.c that can
be copied over empty-pmu-events.c to resolve issues and make an
appropriate empty-pmu-events.c for the json in the source tree at the
time of the build.

[1] https://lore.kernel.org/lkml/abm1nR-2xjOUBroD@x1/

Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Closes: https://lore.kernel.org/lkml/abm1nR-2xjOUBroD@x1/
Fixes: c7adeb0974f1 ("perf jevents: Add set of common metrics based on default ones")
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events arm64: Add Tegra410 Olympus PMU events 2026-03-10T17:40:05+00:00 Besar Wicaksono bwicaksono@nvidia.com 2026-02-12T23:34:07+00:00 86ff690f45cc034ab32246630b3c7d7a46d1ae6b Add JSON files for NVIDIA Tegra410 Olympus core PMU events. Also updated the common-and-microarch.json. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: James Clark <james.clark@linaro.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
Add JSON files for NVIDIA Tegra410 Olympus core PMU events.
Also updated the common-and-microarch.json.

Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update sierraforest events from 1.13 to 1.15 2026-02-27T07:35:22+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:36+00:00 977000589d30f8d4f0777893711199350d474363 The updated events were published in: https://github.com/intel/perfmon/commit/996bacad8f144e675b32f0096b9fe6813380695c https://github.com/intel/perfmon/commit/93b6ef08ca9b01788458e8f5a0e7cbb716715b7c Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/996bacad8f144e675b32f0096b9fe6813380695c
https://github.com/intel/perfmon/commit/93b6ef08ca9b01788458e8f5a0e7cbb716715b7c

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update sapphirerapids events from 1.35 to 1.36 2026-02-27T07:35:17+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:35+00:00 c592a539172664afa1240ea324d6117dcb461ba3 The updated events were published in: https://github.com/intel/perfmon/commit/bda7f1e1839e2f9ea1ac45da338e6fe5ca6fdbb0 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/bda7f1e1839e2f9ea1ac45da338e6fe5ca6fdbb0

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update pantherlake events from 1.02 to 1.04 2026-02-27T07:35:12+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:34+00:00 19967a42049166dbaa12fbe38d7c93a7148dd4ab The updated events were published in: https://github.com/intel/perfmon/commit/1f46fa264d202d57dade1d3fd5b58e79c4706147 https://github.com/intel/perfmon/commit/e49581aeb2903dde6fb1d187e9d412df58e01038 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/1f46fa264d202d57dade1d3fd5b58e79c4706147
https://github.com/intel/perfmon/commit/e49581aeb2903dde6fb1d187e9d412df58e01038

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update meteorlake events from 1.18 to 1.20 2026-02-27T07:35:06+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:33+00:00 698fd9606ee685295313b929e64e3efd2cdd924e The updated events were published in: https://github.com/intel/perfmon/commit/2eebd8e2612a0655e82b88e1d2fab960315c025b https://github.com/intel/perfmon/commit/81c4ce2c16f05b839d2c40e8cf183ed110357b73 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/2eebd8e2612a0655e82b88e1d2fab960315c025b
https://github.com/intel/perfmon/commit/81c4ce2c16f05b839d2c40e8cf183ed110357b73

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update lunarlake events from 1.19 to 1.21 2026-02-27T07:35:01+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:32+00:00 6ac2011cd0c75f1de029942634c7daf1e31078f2 The updated events were published in: https://github.com/intel/perfmon/commit/d6755a30419d02930889497741552309343bdb1e https://github.com/intel/perfmon/commit/6c9f684ae1de6229511fd56d1196fdc2db242a41 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/d6755a30419d02930889497741552309343bdb1e
https://github.com/intel/perfmon/commit/6c9f684ae1de6229511fd56d1196fdc2db242a41

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update graniterapids events from 1.16 to 1.17 2026-02-27T07:34:48+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:31+00:00 2c0b30e6cc0e09c669a0f166ca3d0d566246d560 The updated events were published in: https://github.com/intel/perfmon/commit/c9ebc3ff9c3d408a888fbfbe73d386ef86c7306f With new IO and SNC metrics in: https://github.com/intel/perfmon/commit/04cf5e1e804afd775401167870d48cd25864be7b https://github.com/intel/perfmon/commit/98b2602d83de6625bae1e6fcaab3a39b0a341255 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/c9ebc3ff9c3d408a888fbfbe73d386ef86c7306f

With new IO and SNC metrics in:
https://github.com/intel/perfmon/commit/04cf5e1e804afd775401167870d48cd25864be7b
https://github.com/intel/perfmon/commit/98b2602d83de6625bae1e6fcaab3a39b0a341255

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update grandridge events from 1.10 to 1.11 2026-02-27T07:34:42+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:30+00:00 e4f8be34479c9d29ac0b35c0c8b33250b62cfaad The updated events were published in: https://github.com/intel/perfmon/commit/8ada944c087300c4fc79afcd8512aa3b91bd34f2 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/8ada944c087300c4fc79afcd8512aa3b91bd34f2

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf vendor events intel: Update emeraldrapid events from 1.20 to 1.21 2026-02-27T07:34:34+00:00 Ian Rogers irogers@google.com 2026-02-26T17:59:29+00:00 5c0df1e860100a822d3192edcbf03c1e3b1449a2 The updated events were published in: https://github.com/intel/perfmon/commit/210676cfa8743cd5b9e7cc984fdef1a48542eda4 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> 
The updated events were published in:
https://github.com/intel/perfmon/commit/210676cfa8743cd5b9e7cc984fdef1a48542eda4

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>