PERF_FLAG_FD_NO_GROUP  350 kernel/events/core.c #define PERF_FLAG_ALL (PERF_FLAG_FD_NO_GROUP |\
PERF_FLAG_FD_NO_GROUP 10978 kernel/events/core.c 		if (flags & PERF_FLAG_FD_NO_GROUP)
PERF_FLAG_FD_NO_GROUP    2 tools/perf/trace/beauty/perf_event_open.c #ifndef PERF_FLAG_FD_NO_GROUP