PERF_FLAG_FD_NO_GROUP 1044 include/uapi/linux/perf_event.h #define PERF_FLAG_FD_NO_GROUP		(1UL << 0)
PERF_FLAG_FD_NO_GROUP 1044 tools/include/uapi/linux/perf_event.h #define PERF_FLAG_FD_NO_GROUP		(1UL << 0)
PERF_FLAG_FD_NO_GROUP    3 tools/perf/trace/beauty/perf_event_open.c # define PERF_FLAG_FD_NO_GROUP		(1UL << 0)