Merge branch 'RAMCloud' of https://github.com/yoshitomo0912/ONOS into RAMCloud
diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java b/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
index e10c705..56fcb91 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
@@ -136,6 +136,7 @@
 			deleteDeviceOnPort(link.getSrc(),link.getSrcPort());
 			deleteDeviceOnPort(link.getDst(),link.getDstPort());
 
+		        long startLinkTime = System.nanoTime();
 			if (addLinkImpl(link)) {
 				// Set LinkInfo only if linfo is non-null.
 				if (linfo != null && (! setLinkInfoImpl(link, linfo))) {
@@ -143,6 +144,8 @@
 					dbop.rollback();
 				}
 				dbop.commit();
+                                long endLinkTime = System.nanoTime();
+                                log.error("Performance ##add link total time {}", endLinkTime - startLinkTime);
 				success = true;
 			} else {
 				// If we fail here that's because the ports aren't added