From f5fb6d4efe15a2f0d2c0c175c3827ac594023996 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 24 May 2022 10:54:34 +0300 Subject: libperf evsel: Add comments for booleans Add comments for 'system_wide' and 'requires_cpu' booleans Signed-off-by: Adrian Hunter Acked-by: Ian Rogers Acked-by: Namhyung Kim Cc: Alexey Bayduraev Cc: Ian Rogers Cc: Jiri Olsa Cc: Leo Yan Link: https://lore.kernel.org/r/20220524075436.29144-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/perf/include/internal/evsel.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'tools/lib') diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h index 77fbb8b97e5c..2a912a1f1989 100644 --- a/tools/lib/perf/include/internal/evsel.h +++ b/tools/lib/perf/include/internal/evsel.h @@ -49,7 +49,17 @@ struct perf_evsel { /* parse modifier helper */ int nr_members; + /* + * system_wide is for events that need to be on every CPU, irrespective + * of user requested CPUs or threads. Map propagation will set cpus to + * this event's own_cpus, whereby they will contribute to evlist + * all_cpus. + */ bool system_wide; + /* + * Some events, for example uncore events, require a CPU. + * i.e. it cannot be the 'any CPU' value of -1. + */ bool requires_cpu; int idx; }; -- cgit