kernel/linux.git/tools/perf, branch v6.12.92

perf parse-events: Expose/rename config_term_name

2026-06-01T15:46:15+00:00

[ Upstream commit d2f3ecb0ca2099d13bf8bf69219214c1425dc453 ] Expose config_term_name as parse_events__term_type_str so that PMUs not in pmu.c may access it. Signed-off-by: Ian Rogers Acked-by: Namhyung Kim Link: https://lore.kernel.org/r/20241002032016.333748-4-irogers@google.com Signed-off-by: Namhyung Kim Signed-off-by: Sasha Levin

Revert "perf tool_pmu: Factor tool events into their own PMU"

2026-06-01T15:46:14+00:00

This reverts commit 7cfcd01f33fc3400c60f923d2896a8cdc60cecc4. Signed-off-by: Sasha Levin

Revert "perf python: Add parse_events function"

2026-06-01T15:46:14+00:00

This reverts commit 9cd264079fab9867dbc9fbc8a1e521996e3d7212. Signed-off-by: Sasha Levin

Revert "perf tool_pmu: Fix aggregation on duration_time"

2026-06-01T15:46:14+00:00

This reverts commit 310be445ab1028315627b326516f193511cb1c97. Signed-off-by: Sasha Levin

Revert "perf cgroup: Update metric leader in evlist__expand_cgroup"

2026-06-01T15:46:14+00:00

This reverts commit d26e31446c0fa96feca0b7701243b42447225d33. Signed-off-by: Sasha Levin

perf tool_pmu: Fix aggregation on duration_time

2026-05-23T11:04:58+00:00

[ Upstream commit 68cb1567439fa325ba980f3b5b67f95d3953eafd ] evsel__count_has_error() fails counters when the enabled or running time are 0. The duration_time event reads 0 when the cpu_map_idx != 0 to avoid aggregating time over CPUs. Change the enable and running time to always have a ratio of 100% so that evsel__count_has_error won't fail. Before: ``` $ sudo /tmp/perf/perf stat --per-core -a -M UNCORE_FREQ sleep 1 Performance counter stats for 'system wide': S0-D0-C0 1 2,615,819,485 UNC_CLOCK.SOCKET # 2.61 UNCORE_FREQ S0-D0-C0 2 duration_time 1.002111784 seconds time elapsed ``` After: ``` $ perf stat --per-core -a -M UNCORE_FREQ sleep 1 Performance counter stats for 'system wide': S0-D0-C0 1 758,160,296 UNC_CLOCK.SOCKET # 0.76 UNCORE_FREQ S0-D0-C0 2 1,003,438,246 duration_time 1.002486017 seconds time elapsed ``` Note: the metric reads the value a different way and isn't impacted. Fixes: 240505b2d0adcdc8 ("perf tool_pmu: Factor tool events into their own PMU") Reported-by: Stephane Eranian Reviewed-by: James Clark Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Thomas Richter Link: https://lore.kernel.org/r/20250423050358.94310-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin

perf util: Kill die() prototype, dead for a long time

2026-05-23T11:04:43+00:00

[ Upstream commit e5cce1b9c82fbd48e2f1f7a25a9fad8ee228176f ] In fef2a735167a827a ("perf tools: Kill die()") the die() function was removed, but not the prototype in util.h, now when building with LIBPERL=1, during a 'make -C tools/perf build-test' routine test, it is failing as perl likes die() calls and then this clashes with this remnant, remove it. Fixes: fef2a735167a827a ("perf tools: Kill die()") Reviewed-by: Ian Rogers Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Namhyung Kim Signed-off-by: Sasha Levin

perf maps: Fix copy_from that can break sorted by name order

2026-05-23T11:04:43+00:00

[ Upstream commit f552b132e4d5248715828e7e5c2bf7889bf05b2e ] When an parent is copied into a child the name array is populated in address not name order. Make sure the name array isn't flagged as sorted. Fixes: 659ad3492b91 ("perf maps: Switch from rbtree to lazily sorted array for addresses") Signed-off-by: Ian Rogers Signed-off-by: Namhyung Kim Signed-off-by: Sasha Levin

perf cgroup: Update metric leader in evlist__expand_cgroup

2026-05-23T11:04:43+00:00

[ Upstream commit c9ef786c0970991578397043f1c819229e2b7197 ] When the evlist is expanded the metric leader wasn't being updated. As the original evsel is deleted this creates a use-after-free in stat-shadow's prepare_metric. This was detected running the "perf stat --bpf-counters --for-each-cgroup test" with sanitizers. The change itself puts the copied evsel into the priv field (known unused because of evsel__clone use) and then in a second pass over the list updates the copied values using the priv pointer. Fixes: d1c5a0e86a4e ("perf stat: Add --for-each-cgroup option") Signed-off-by: Ian Rogers Acked-by: Sun Jian Signed-off-by: Namhyung Kim Signed-off-by: Sasha Levin

perf python: Add parse_events function

2026-05-23T11:04:43+00:00

[ Upstream commit f081defccd934a8db309c90a61178e4f2eef386c ] Add basic parse_events function that takes a string and returns an evlist. As the python evlist is embedded in a pyrf_evlist, and the evsels are embedded in pyrf_evsels, copy the parsed data into those structs and update evsel__clone to enable this. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: Athira Rajeev Cc: Colin Ian King Cc: Dapeng Mi Cc: Howard Chu Cc: Ilya Leoshkevich Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Josh Poimboeuf Cc: Kan Liang Cc: Mark Rutland Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Thomas Richter Cc: Veronika Molnarova Cc: Weilin Wang Link: https://lore.kernel.org/r/20241119011644.971342-20-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: c9ef786c0970 ("perf cgroup: Update metric leader in evlist__expand_cgroup") Signed-off-by: Sasha Levin