diff options
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/perf/include/internal/evsel.h | 10 |
1 files changed, 10 insertions, 0 deletions
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; }; |