perf: Add NSID in perf output information

Currently an option is implemented to monitor a correlation between the
core and namespace.

Previously:
==================================================================
Device Information
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 from core  0:
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 from core  0:
==================================================================

Now:
========================================================================
Device Information
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 NSID 1 from core 0:
RDMA (addr:1.1.75.2 subnqn:nqn.2016-06.io.spdk:cnode1 NSID 2 from core 0:
========================================================================

Signed-off-by: Alla Kiseleva <[email protected]>

examples/nvme/perf/perf.c

@@ -632,27 +632,42 @@ static const struct ns_fn_table nvme_fn_table = {
 	.cleanup_ns_worker_ctx	= nvme_cleanup_ns_worker_ctx,
 };
 
-static void
+static int
 build_nvme_name(char *name, size_t length, struct spdk_nvme_ctrlr *ctrlr)
 {
 	const struct spdk_nvme_transport_id *trid;
+	int res = 0;
 
 	trid = spdk_nvme_ctrlr_get_transport_id(ctrlr);
 
 	switch (trid->trtype) {
 	case SPDK_NVME_TRANSPORT_PCIE:
-		snprintf(name, length, "PCIE (%s)", trid->traddr);
+		res = snprintf(name, length, "PCIE (%s)", trid->traddr);
 		break;
 	case SPDK_NVME_TRANSPORT_RDMA:
-		snprintf(name, length, "RDMA (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
+		res = snprintf(name, length, "RDMA (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
 		break;
 	case SPDK_NVME_TRANSPORT_TCP:
-		snprintf(name, length, "TCP  (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
+		res = snprintf(name, length, "TCP  (addr:%s subnqn:%s)", trid->traddr, trid->subnqn);
 		break;
+
 	default:
 		fprintf(stderr, "Unknown transport type %d\n", trid->trtype);
 		break;
 	}
+	return res;
+}
+
+static void
+build_nvme_ns_name(char *name, size_t length, struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid)
+{
+	int res = 0;
+
+	res = build_nvme_name(name, length, ctrlr);
+	if (res > 0) {
+		snprintf(name + res - 1, length - res + 1, " NSID %d", nsid);
+	}
+
 }
 
 static void
@@ -747,6 +762,7 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
 	}
 
 	build_nvme_name(entry->name, sizeof(entry->name), ctrlr);
+	build_nvme_ns_name(entry->name, sizeof(entry->name), ctrlr, spdk_nvme_ns_get_id(ns));
 
 	g_num_namespaces++;
 	entry->next = g_namespaces;
@@ -1243,7 +1259,7 @@ print_performance(void)
 		worker = worker->next;
 	}
 
-	printf("========================================================\n");
+	printf("==========================================================================\n");
 	printf("%*s\n", max_strlen + 60, "Latency(us)");
 	printf("%-*s: %10s %10s %10s %10s %10s\n",
 	       max_strlen + 13, "Device Information", "IOPS", "MiB/s", "Average", "min", "max");
@@ -1283,7 +1299,7 @@ print_performance(void)
 
 	if (ns_count != 0 && total_io_completed) {
 		sum_ave_latency = ((double)total_io_tsc / total_io_completed) * 1000 * 1000 / g_tsc_rate;
-		printf("========================================================\n");
+		printf("==========================================================================\n");
 		printf("%-*s: %10.2f %10.2f %10.2f %10.2f %10.2f\n",
 		       max_strlen + 13, "Total", total_io_per_second, total_mb_per_second,
 		       sum_ave_latency, min_latency_so_far, max_latency_so_far);