diff --git a/helix-core/src/main/java/org/apache/helix/controller/stages/CurrentStateComputationStage.java b/helix-core/src/main/java/org/apache/helix/controller/stages/CurrentStateComputationStage.java
index 4eb4004af2..51abca36b3 100644
--- a/helix-core/src/main/java/org/apache/helix/controller/stages/CurrentStateComputationStage.java
+++ b/helix-core/src/main/java/org/apache/helix/controller/stages/CurrentStateComputationStage.java
@@ -113,6 +113,8 @@ public void process(ClusterEvent event) throws Exception {
       reportResourcePartitionCapacityMetrics(dataProvider.getAsyncTasksThreadPool(),
           clusterStatusMonitor, dataProvider.getResourceConfigMap().values());
 
+      // TODO: we only need to compute when there are resource using Waged. We should
+      // do this as perf improvement in future.
       WagedInstanceCapacity capacityProvider = new WagedInstanceCapacity(dataProvider);
       WagedResourceWeightsProvider weightProvider = new WagedResourceWeightsProvider(dataProvider);