diff --git a/examples/qos_meter/main.c b/examples/qos_meter/main.c
index ce87b2eca262..00d49e651952 100644
--- a/examples/qos_meter/main.c
+++ b/examples/qos_meter/main.c
@@ -454,7 +454,7 @@ main(int argc, char **argv)
 		rte_exit(EXIT_FAILURE, "Invalid configure flow table\n");
 
 	/* Launch per-lcore init on every lcore */
-	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MAIN);
 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 		if (rte_eal_wait_lcore(lcore_id) < 0)
 			return -1;
diff --git a/examples/qos_sched/args.c b/examples/qos_sched/args.c
index 7431b29816aa..77f47a8cf63a 100644
--- a/examples/qos_sched/args.c
+++ b/examples/qos_sched/args.c
@@ -22,7 +22,7 @@
 #define MAX_OPT_VALUES 8
 #define SYS_CPU_DIR "/sys/devices/system/cpu/cpu%u/topology/"
 
-static uint32_t app_master_core = 1;
+static uint32_t app_main_core = 1;
 static uint32_t app_numa_mask;
 static uint64_t app_used_core_mask = 0;
 static uint64_t app_used_port_mask = 0;
@@ -40,7 +40,7 @@ static const char usage[] =
 	"                                                                               \n"
 	"Application optional parameters:                                               \n"
         "    --i     : run in interactive mode (default value is %u)                    \n"
-	"    --mst I : master core index (default value is %u)                          \n"
+	"    --mnc   I : main core index (default value is %u)                          \n"
 	"    --rsz \"A, B, C\" :   Ring sizes                                           \n"
 	"           A = Size (in number of buffer descriptors) of each of the NIC RX    \n"
 	"               rings read by the I/O RX lcores (default value is %u)           \n"
@@ -72,7 +72,7 @@ static const char usage[] =
 static void
 app_usage(const char *prgname)
 {
-	printf(usage, prgname, APP_INTERACTIVE_DEFAULT, app_master_core,
+	printf(usage, prgname, APP_INTERACTIVE_DEFAULT, app_main_core,
 		APP_RX_DESC_DEFAULT, APP_RING_SIZE, APP_TX_DESC_DEFAULT,
 		MAX_PKT_RX_BURST, PKT_ENQUEUE, PKT_DEQUEUE,
 		MAX_PKT_TX_BURST, NB_MBUF,
@@ -98,7 +98,7 @@ app_eal_core_mask(void)
 			cm |= (1ULL << i);
 	}
 
-	cm |= (1ULL << rte_get_master_lcore());
+	cm |= (1ULL << rte_get_main_lcore());
 
 	return cm;
 }
@@ -312,7 +312,7 @@ app_parse_args(int argc, char **argv)
 
 	static struct option lgopts[] = {
 		{ "pfc", 1, 0, 0 },
-		{ "mst", 1, 0, 0 },
+		{ "mnc", 1, 0, 0 },
 		{ "rsz", 1, 0, 0 },
 		{ "bsz", 1, 0, 0 },
 		{ "msz", 1, 0, 0 },
@@ -352,8 +352,8 @@ app_parse_args(int argc, char **argv)
 					}
 					break;
 				}
-				if (str_is(optname, "mst")) {
-					app_master_core = (uint32_t)atoi(optarg);
+				if (str_is(optname, "mnc")) {
+					app_main_core = (uint32_t)atoi(optarg);
 					break;
 				}
 				if (str_is(optname, "rsz")) {
@@ -408,18 +408,18 @@ app_parse_args(int argc, char **argv)
 			}
 	}
 
-	/* check master core index validity */
-	for(i = 0; i <= app_master_core; i++) {
-		if (app_used_core_mask & (1u << app_master_core)) {
+	/* check main core index validity */
+	for(i = 0; i <= app_main_core; i++) {
+		if (app_used_core_mask & (1u << app_main_core)) {
 			RTE_LOG(ERR, APP, "Master core index is not configured properly\n");
 			app_usage(prgname);
 			return -1;
 		}
 	}
-	app_used_core_mask |= 1u << app_master_core;
+	app_used_core_mask |= 1u << app_main_core;
 
 	if ((app_used_core_mask != app_eal_core_mask()) ||
-			(app_master_core != rte_get_master_lcore())) {
+			(app_main_core != rte_get_main_lcore())) {
 		RTE_LOG(ERR, APP, "EAL core mask not configured properly, must be %" PRIx64
 				" instead of %" PRIx64 "\n" , app_used_core_mask, app_eal_core_mask());
 		return -1;
diff --git a/examples/qos_sched/cmdline.c b/examples/qos_sched/cmdline.c
index ba68e0d02693..1cf7ea97abbf 100644
--- a/examples/qos_sched/cmdline.c
+++ b/examples/qos_sched/cmdline.c
@@ -599,7 +599,7 @@ cmdline_parse_ctx_t main_ctx[] = {
 	NULL,
 };
 
-/* prompt function, called from main on MASTER lcore */
+/* prompt function, called from main on MAIN lcore */
 void
 prompt(void)
 {
diff --git a/examples/qos_sched/main.c b/examples/qos_sched/main.c
index 73864d66dbc8..a6071b991c76 100644
--- a/examples/qos_sched/main.c
+++ b/examples/qos_sched/main.c
@@ -204,7 +204,7 @@ main(int argc, char **argv)
 		return -1;
 
 	/* launch per-lcore init on every lcore */
-	rte_eal_mp_remote_launch(app_main_loop, NULL, SKIP_MASTER);
+	rte_eal_mp_remote_launch(app_main_loop, NULL, SKIP_MAIN);
 
 	if (interactive) {
 		sleep(1);
