6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ian Rogers irogers@google.com
[ Upstream commit eb4d27cf9aef3e6c9bcaf8fa1a1cadc2433d847b ]
Document that 'b' is used as a modifier to make an event use a BPF counter.
Fixes: 01bd8efcec444468 ("perf stat: Introduce ':b' modifier") Signed-off-by: Ian Rogers irogers@google.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Athira Rajeev atrajeev@linux.vnet.ibm.com Cc: Ingo Molnar mingo@redhat.com Cc: Jiri Olsa jolsa@kernel.org Cc: Kan Liang kan.liang@linux.intel.com Cc: Mark Rutland mark.rutland@arm.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Ravi Bangoria ravi.bangoria@amd.com Cc: Song Liu song@kernel.org Cc: Thomas Richter tmricht@linux.ibm.com Link: https://lore.kernel.org/r/20240416170014.985191-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/Documentation/perf-list.txt | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 57384a97c04f4..3dae696b748a6 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -63,6 +63,7 @@ counted. The following modifiers exist: D - pin the event to the PMU W - group is weak and will fallback to non-group if not schedulable, e - group or event are exclusive and do not share the PMU + b - use BPF aggregration (see perf stat --bpf-counters)
The 'p' modifier can be used for specifying how precise the instruction address should be. The 'p' modifier can be specified multiple times: