diff --git a/Libraries/Utilities/PerformanceLogger.js b/Libraries/Utilities/PerformanceLogger.js
index c05c4b7c2..c7f0e316c 100644
--- a/Libraries/Utilities/PerformanceLogger.js
+++ b/Libraries/Utilities/PerformanceLogger.js
@@ -24,7 +24,8 @@ var PerformanceLogger = {
     if (timespans[key]) {
       if (__DEV__) {
         console.log(
-          'PerformanceLogger: Attempting to add a timespan that already exists'
+          'PerformanceLogger: Attempting to add a timespan that already exists ',
+          key
         );
       }
       return;
@@ -40,7 +41,8 @@ var PerformanceLogger = {
     if (timespans[key]) {
       if (__DEV__) {
         console.log(
-          'PerformanceLogger: Attempting to start a timespan that already exists'
+          'PerformanceLogger: Attempting to start a timespan that already exists ',
+          key,
         );
       }
       return;
@@ -56,7 +58,8 @@ var PerformanceLogger = {
     if (!timespans[key] || !timespans[key].startTime) {
       if (__DEV__) {
         console.log(
-          'PerformanceLogger: Attempting to end a timespan that has not started'
+          'PerformanceLogger: Attempting to end a timespan that has not started ',
+          key,
         );
       }
       return;
@@ -75,6 +78,10 @@ var PerformanceLogger = {
     return timespans;
   },
 
+  hasTimespan(key) {
+    return !!timespans[key];
+  },
+
   logTimespans() {
     for (var key in timespans) {
       console.log(key + ': ' + timespans[key].totalTime + 'ms');