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9 daysperf jevents: Add mesh bandwidth saturation for CWF, EMR, GRR, SNR, SPR, SRFIan Rogers
Extend the mesh bandwidth saturation's list of events to include events from clearwaterforest, emeraldrapids, grandridge, graniterapids, sapphirerapids and sierraforest. This makes the lpm_mem_sat metric available for those CPU models. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-08-18perf vendor events arm64: Fix Tegra410 Olympus event 0x0197Besar Wicaksono
The name and description for NVIDIA Tegra410 Olympus implementation-defined event 0x0197 incorrectly indicate a TXREQ limit between one quarter and one half. Correct them to describe a TXREQ limit below one half. Fixes: 86ff690f45cc ("perf vendor events arm64: Add Tegra410 Olympus PMU events") Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-08-18perf vendor events arm64: fix swapped MetricGroup for Tegra410 L1 prefetcher ↵Saurav Sachidanand
metrics The L1D prefetcher metrics (l1d_cache_rw_miss_ratio, l1d_demand_accesses, etc.) were incorrectly assigned to MetricGroup "L1I_Prefetcher_Effectiveness" and vice versa. This causes 'perf stat --metric-group L1D_Prefetcher_Effectiveness' to display L1I metrics, which is misleading. Swap the MetricGroup assignments so L1D metrics are in the L1D group and L1I metrics are in the L1I group. Fixes: 86ff690f45cc ("perf vendor events arm64: Add Tegra410 Olympus PMU events") Signed-off-by: Saurav Sachidanand <sauravsc@amazon.com> Reviewed-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-08-04perf vendor events intel: Fix Novalake CPUID regex in mapfile.csvChun-Tse Shao
Based on offline discussion with Intel in lore.kernel.org/20260715211144.3144895-1-ctshao@google.com, we decided to drop the leading zero from Nova Lake models 0x01 and 0x03 in mapfile.csv to match single-digit model numbers without zero padding (GenuineIntel-18-[13]). The updated mapfile entry was published in: github.com/intel/perfmon/commit/00167baed45ac3b2708e89dbf1b9ce4769e9d115 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-08-03perf pmu-events: Fix typo in idle-cycles-frontend descriptionPu Hu
The brief description of the idle-cycles-frontend legacy hardware event refers to its alias as "stalled-cycles-fronted", but there is no such event. The correct event name is "stalled-cycles-frontend". This typo is visible in the output of "perf list", for example: idle-cycles-frontend [Stalled cycles during issue [This event is an alias of stalled-cycles-fronted]. Unit: armv8_pmuv3] Fix the spelling so that the description points to the valid event name. Signed-off-by: Pu Hu <hupu@transsion.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-23perf pmu-events: Parallelize JSON and metric pre-computation in jevents.pyIan Rogers
Currently, jevents.py parses hundreds of JSON event and metric files sequentially across all CPU architectures during Kbuild startup, taking ~3.5 seconds of single-core execution time. Refactor jevents.py to pre-populate its internal JSON AST cache in parallel across all available CPU cores using ProcessPoolExecutor. First gather all the paths with ftw and collect_json, then spawn _parallel_read_json_events that starts workers to just read the json events. Define the worker process initializer _init_worker so that _arch_std_events is available under spawn multiprocessing semantics. This accelerates the JSON parsing phase by over 10x (from ~3.0s down to ~290ms), reducing overall jevents.py execution time by 3.5x (from ~3.56s down to ~1.03s). Tested-by: James Clark <james.clark@linaro.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-16perf jevents metric: Add python type annotationsIan Rogers
Make mypy clean. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-16perf jevents: Add python type annotationsIan Rogers
Make mypy clean. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf jevents: Add more components to the metric sorting orderIan Rogers
Nazar Kazakov reported non-deterministic builds due to the metrics being reordered in the jevents.py output. The metrics were largely only being sorted by name, add in the expressions and descriptions. Reported-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Closes: https://lore.kernel.org/linux-perf-users/20260706175624.692736-1-nazar.kazakov@codethink.co.uk/ Fixes: 40769665b63d ("perf jevents: Parse metrics during conversion") Tested-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update emeraldrapids metricsChun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/240735b7d8e0b50fe8f4a64e08399df13cb87ae6 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update sierraforest events from 1.17 to 1.18Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/d1bc6c1e8b32e7a75c70cc939295c11ba9aabc96 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update pantherlake events from 1.06 to 1.07Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/ce70546e9ccca4181d142057171c5bd820c8756d Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Add novalake v1.00 eventsChun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/3aa49b06346e3a3ff40c7beabe63585591200c58 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update meteorlake events from 1.21 to 1.22Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/704ef43e4c0738065a0575622cf7d31867b8d48b Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update lunarlake events from 1.25 to 1.26Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/2ba9dec72a771ed3ce7114d6a16797131871fd61 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update graniterapids events from 1.19 to 1.20Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/084ecb869d75f9e5383354d3fe68a93aa25be112 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update grandridge events from 1.12 to 1.13Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/e479bd676826824110a49505b51a92952de91200 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update clearwaterforest events from 1.02 to 1.04Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/13983cd535d18b2bfd86a3b9daa374039f78a836 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update arrowlake events from 1.19 to 1.20Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/b23ebe7bc25add0c835565e4bc87e063cb620a02 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update alderlaken events from 1.39 to 1.40Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/7a14cc8feaf86772deb6708e96c8e9fee6d5b1ca Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf vendor events intel: Update alderlake events from 1.39 to 1.40Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/7a14cc8feaf86772deb6708e96c8e9fee6d5b1ca Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-15perf jevents: Add Intel OMR MSR mappingsDapeng Mi
New OMR MSRs are introduced for OMR events on DMR and NVL. Perf continues to reuse the existing offcore_rsp attribute to encode the MSR value, similar to existing OCR event handling. Add the corresponding OMR MSR mappings in lookup_msr() so jevents can translate these events and generate the correct offcore_rsp attribute. Link: https://lore.kernel.org/all/20260114011750.350569-2-dapeng1.mi@linux.intel.com/ Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-08perf vendor events amd: Reintroduce deprecated Zen 5 core eventsSandipan Das
Maintain backward compatibility by reintroducing the events that were previously removed by commit 047979af3bf6 ("perf vendor events amd: Update Zen 5 core events"). Also set the deprecated flag and update the descriptions to point users to the correct alternative. Reported-by: Ian Rogers <irogers@google.com> Closes: https://lore.kernel.org/all/CAP-5=fV_czvd-z4N7K+_SabxuOm9UUHRyBxNuchrtAgJL3OqOw@mail.gmail.com/ Fixes: 047979af3bf6 ("perf vendor events amd: Update Zen 5 core events") Signed-off-by: Sandipan Das <sandipan.das@amd.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-04perf vendor events amd: Update Zen 6 core eventsSandipan Das
Update definitions for the following events. * PMCx00A - Fix descriptions * PMCx00C - Add missing unit masks * PMCx00D - Add missing unit masks and fix descriptions * PMCx013 - Fix incorrect unit masks Fixes: 2f42fb0661d9 ("perf vendor events amd: Add Zen 6 core events") Signed-off-by: Sandipan Das <sandipan.das@amd.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-07-04perf vendor events amd: Update Zen 5 core eventsSandipan Das
Update definitions for the following events. * PMCx00A - Add missing unit masks * PMCx00B - Add missing unit masks and fix descriptions * PMCx00C - Add missing unit masks * PMCx00D - Add missing unit masks * PMCx025 - Add missing unit masks and fix descriptions Fixes: 45c072f2537a ("perf vendor events amd: Add Zen 5 core events") Signed-off-by: Sandipan Das <sandipan.das@amd.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update tigerlake events from 1.18 to 1.19Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/8353ffb63efcad6b6fac1a8c05d76e2d6317ae23 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update pantherlake events from 1.05 to 1.06Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/ffc03fc3b414127c5a36bbb648e500c4afeff134 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update lunarlake events from 1.22 to 1.25Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/5535a3e8cc14ae8ef58013cf3d8e9480018b911a Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update graniterapids events from 1.18 to 1.19Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/875354c88686ef50387d9601f52354a6da8f24cc Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update emeraldrapids events from 1.23 to 1.24Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/3f1d40d1953193e75c6b5a559638cf1f67bacaed Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-30perf vendor events intel: Update arrowlake events from 1.17 to 1.19Chun-Tse Shao
The updated events were published in: https://github.com/intel/perfmon/commit/b84e75626ae78558b8f526a276e4597c5ca6c429 Signed-off-by: Chun-Tse Shao <ctshao@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Reviewed-by: Ian Rogers <irogers@google.com> Link: https://github.com/intel/perfmon/commit/b84e75626ae78558b8f526a276e4597c5ca6c429 Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2026-06-04perf pmu-events: Add API to get metric table name and iterate tablesIan Rogers
Add name field to struct pmu_metrics_table and populate it in generated tables. Add pmu_metrics_table__name() to retrieve the name. Add pmu_metrics_table__for_each_table() to iterate over all known metric tables. This will be used to break apart slow metric tests per table. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf jevents.py: Make generated C code more kernel styleIan Rogers
Make jevents.py generate C code that complies with formatting tools: - Add /* clang-format off */ before big_c_string and re-enable it after system mapping tables, bypassing large generated tables while checking functions and early structs. - Make comments more human readable and avoid going over 100 character line length. - Fix spaces indentation to tabs in struct/array initializers. - Fix other checkpatch detected related issues. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf stat: Use aggr_nr scaling for Intel uncore miss latency metricsChun-Tse Shao
Update `metric.py` to support the new `aggr_nr` keyword in the python metric generator. Replace the usage of `source_count` with `aggr_nr` in `IntelMissLat` inside `intel_metrics.py` so that uncore latency metrics (like `lpm_miss_lat`) scale correctly on multi-socket and SNC systems when aggregated globally. Additionally, update the validation bypass logic in `CheckEveryEvent()` inside `metric.py` to whitelist 'cha' and 'uncore' events. This prevents validation failures when compiling metrics referencing these PMU-specific uncore events. Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Chun-Tse Shao <ctshao@google.com> Tested-by: Zide Chen <zide.chen@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf jevents: Add IOMMU metrics for IntelChun-Tse Shao
Add IOMMU Translation Lookaside Buffer (TLB) and interrupt cache metrics to perf jevents for Intel platforms. This enhances I/O performance observability, allowing fleet-wide monitoring of IOMMU overhead. These metrics are supported on platforms that expose the required uncore IIO IOMMU events (such as Emerald Rapids and Granite Rapids). The Intel implementation dynamically detects event availability at generation time. It requires at least the TLB events to expose the metric group, while the interrupt cache events are optional. This allows platforms like Emerald Rapids, which lack IOMMU interrupt cache events, to still expose the IOMMU TLB metrics. The following metrics are added: - iotlb_total_hit: Total IOTLB hits (4K, 2M, 1G pages). - iotlb_total_miss: Total IOTLB misses. - iotlb_miss_rate: IOTLB miss rate. - iotlb_interrupt_cache_hit: Interrupt cache hits. - iotlb_interrupt_cache_miss: Interrupt cache misses (calculated as lookup - hit, clamped to zero). - iotlb_interrupt_cache_lookup: Interrupt cache lookups. - iotlb_interrupt_cache_miss_rate: Interrupt cache miss rate. Tested: # perf stat -M \ iotlb_total_hit,iotlb_total_miss,iotlb_miss_rate \ --per-socket --metric-only -a -j -- sleep 10 {"socket" : "S0", "counters" : 10, "hits iotlb_total_hit" : "3579249.0", "% iotlb_miss_rate" : "0.0", "misses iotlb_total_miss" : "3.0"} {"socket" : "S1", "counters" : 10, "hits iotlb_total_hit" : "0.0", "% iotlb_miss_rate" : "0.0", "misses iotlb_total_miss" : "0.0"} Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Chun-Tse Shao <ctshao@google.com> Assisted-by: Gemini:gemini-3.1-pro-preview Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Link: https://lore.kernel.org/r/20260528234455.434027-3-ctshao@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf jevents: Add IOMMU metrics for AMDChun-Tse Shao
Add IOMMU Translation Lookaside Buffer (TLB) and interrupt cache metrics to perf jevents for AMD platforms. This enhances I/O performance observability, allowing fleet-wide monitoring of IOMMU overhead. These metrics are supported on Zen 2 and newer processors (Rome, Milan, Genoa, Turin) and are implemented using the standard `amd_iommu` PMU events. The implementation uses the existing `_zen_model` helper to ensure these are only generated for Zen 2+. Note that the pde events on AMD cover both 2M and 1G pages, so 1G pages are implicitly included in the total hits/misses metrics (sum of pte and pde events). The following metrics are added: - iotlb_total_hit: Total IOTLB hits (4K, 2M, 1G pages). - iotlb_total_miss: Total IOTLB misses. - iotlb_miss_rate: IOTLB miss rate. - iotlb_interrupt_cache_hit: Interrupt cache hits. - iotlb_interrupt_cache_miss: Interrupt cache misses. - iotlb_interrupt_cache_lookup: Interrupt cache lookups. - iotlb_interrupt_cache_miss_rate: Interrupt cache miss rate. Tested: # perf stat -M \ iotlb_total_hit,iotlb_total_miss,iotlb_miss_rate \ --per-socket --metric-only -a -j -- sleep 10 {"socket" : "S0", "counters" : 10, "hits iotlb_total_hit" : "3579249.0", "% iotlb_miss_rate" : "0.0", "misses iotlb_total_miss" : "3.0"} {"socket" : "S1", "counters" : 10, "hits iotlb_total_hit" : "0.0", "% iotlb_miss_rate" : "0.0", "misses iotlb_total_miss" : "0.0"} Reviewed-by: Ian Rogers <irogers@google.com> Reviewed-by: Sandipan Das <sandipan.das@amd.com> Signed-off-by: Chun-Tse Shao <ctshao@google.com> Assisted-by: Gemini:gemini-3.1-pro-preview Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update sierraforest events from 1.15 to 1.17Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/efa15280e0577982744642a77af18208aab3635b https://github.com/intel/perfmon/commit/5cdba6c2ccfde2ec13e0e701bc2a374849ce9a44 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update sapphirerapids events from 1.36 to 1.39Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/0718b785554ba9bb7f87ad2b838cf25bab5bfa9c https://github.com/intel/perfmon/commit/42fe96774f8bda1d67c6ad7ef7f45b27fae7c696 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update pantherlake events from 1.04 to 1.05Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/f5593317a6dee0d11bb2db9a5895db1f231267a9 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update meteorlake events from 1.20 to 1.21Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/419a6600ad2019d4acbf0f79cc54cde85164afc1 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update lunarlake events from 1.21 to 1.22Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/fae822a0f9318e602902eeb2166b966a28c715f8 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update graniterapids events from 1.17 to 1.18Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/5b93c8c750300a15b29a9a718511869b280c91f4 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update grandridge events from 1.11 to 1.12Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/50159a77124571c633adc2625fa7b566010d5001 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update emeraldrapids events from 1.21 to 1.23Ian Rogers
The updated events and metrics were published in: https://github.com/intel/perfmon/commit/526f1bf0ad6a42d275d1bb115cd337b71c561f92 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update clearwaterforest events and metrics from ↵Ian Rogers
1.00 to 1.02 The updated events and metrics were published in: https://github.com/intel/perfmon/commit/6de6be144b5ea747690a74106f180269c3d647b0 https://github.com/intel/perfmon/commit/e7f5e6092c3e4c11f350c0468ddecb0e1e818b76 https://github.com/intel/perfmon/commit/9c1a1baa5156efbe9325392194d2bf5d1c8bcb92 https://github.com/intel/perfmon/commit/6055edb3c30634fc913250b562c0fc42ac4eb523 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update arrowlake events from 1.16 to 1.17Ian Rogers
The updated events were published in: https://github.com/intel/perfmon/commit/90c505bcd9b10fd9ce692a670c23074ab743aa87 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update alderlaken events from 1.37 to 1.39Ian Rogers
The updated events were published in: https://github.com/intel/perfmon/commit/e55693d19f4dfe6b09c0ee9eb2b4e93781e16dd9 https://github.com/intel/perfmon/commit/25a1cd4847c1ed9159b5c79d1f7afe24ec965269 Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Link: https://lore.kernel.org/r/20260529045155.311805-3-irogers@google.com Cc: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Andreas Färber <afaerber@suse.de> Cc: linux-kernel@vger.kernel.org Cc: linux-perf-users@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-29perf vendor events intel: Update alderlake events from 1.37 to 1.39Ian Rogers
The updated events were published in: https://github.com/intel/perfmon/commit/e55693d19f4dfe6b09c0ee9eb2b4e93781e16dd9 https://github.com/intel/perfmon/commit/25a1cd4847c1ed9159b5c79d1f7afe24ec965269 Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andreas Färber <afaerber@suse.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Manivannan Sadhasivam <mani@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf pmu-events: Convert recursive shell assignments and macros to Make ↵Ian Rogers
built-ins In pmu-events/Build, ZENS, ARMS, and INTELS were assigned using recursive assignment (=), and model_name/vendor_name were evaluated using shell macros (echo ... | sed ...). Because these variables were expanded inside the COPY_RULE dependency evaluation loop across hundreds of PMU JSON files and inside every metric generation recipe, Kbuild continuously re-executed 'ls', 'grep', and 'sed' shell forks thousands of times during AST parsing and execution. Convert ZENS, ARMS, and INTELS to simply expanded variables (:=) and replace model_name/vendor_name with pure GNU Make string functions. This guarantees Make executes directory probing shell forks exactly once when the Build file is parsed and evaluates path macros purely in memory, completely eliminating over 7,800 redundant sub-processes during build startup. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf pmu-events: Split big_c_string storage into standalone compilation unitIan Rogers
Currently, jevents.py emits both the massive 2.8 MB big_c_string literal and tens of thousands of compact_pmu_event struct arrays into a single pmu-events.c compilation unit. Compiling this giant file takes ~2.2 seconds on a single CPU core during Kbuild startup. Refactor jevents.py to emit big_c_string into a dedicated pmu-events-string.c compilation unit. This allows Kbuild to compile pmu-events.o and pmu-events-string.o simultaneously in parallel across two separate CPU cores, preserving 100% string deduplication and zero dynamic ELF relocations while cutting C compilation latency in half. Add pmu-events-string.c to tools/perf/.gitignore to ensure in-tree Kbuild runs do not leave untracked generated files in the working directory. To guarantee 100% backward compatibility with GNU Make 4.0+ (avoiding the Make 4.3+ grouped target &: syntax which causes older Make versions like 4.2.1 to spawn multiple concurrent jevents.py processes during parallel builds), implement a robust dependency chaining pattern: $(PMU_EVENTS_C): $(JEVENTS_DEPS) $(PMU_EVENTS_STRING_C): $(PMU_EVENTS_C) @: This ensures jevents.py is invoked exactly once. If jevents.py aborts early, Make's .DELETE_ON_ERROR: purges pmu-events.c, guaranteeing that subsequent Make invocations correctly re-execute the script and overwrite pmu-events-string.c. In jevents.py, explicitly close output_file first and output_string_file second at the tail of main() to guarantee that pmu-events-string.c receives a filesystem timestamp greater than or equal to pmu-events.c, completely avoiding redundant incremental rebuilds. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2026-09-23 08:02:37 +0000