NANOSEC_PER_SEC    68 samples/bpf/xdp_monitor_user.c #define NANOSEC_PER_SEC 1000000000 /* 10^9 */
NANOSEC_PER_SEC   143 samples/bpf/xdp_redirect_cpu_user.c #define NANOSEC_PER_SEC 1000000000 /* 10^9 */
NANOSEC_PER_SEC   168 samples/bpf/xdp_rxq_info_user.c #define NANOSEC_PER_SEC 1000000000 /* 10^9 */