diff --git a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SessionEvent.scala b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SessionEvent.scala
index 610b1645c2f..5f04945ef8c 100644
--- a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SessionEvent.scala
+++ b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SessionEvent.scala
@@ -36,6 +36,10 @@ import org.apache.kyuubi.events.KyuubiEvent
  * @param ip Client IP address
  * @param serverIp Kyuubi Server IP address
  * @param totalOperations how many queries and meta calls
+ * @param sessionRunTime total time of running the session (including fetching shuffle data)
+ *                       in milliseconds
+ * @param sessionCpuTime total CPU time of running the session (including fetching shuffle data)
+ *                       in nanoseconds
  */
 case class SessionEvent(
     @KVIndexParam sessionId: String,
diff --git a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SparkOperationEvent.scala b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SparkOperationEvent.scala
index 4b529cdafb9..143ba61f843 100644
--- a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SparkOperationEvent.scala
+++ b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/events/SparkOperationEvent.scala
@@ -46,6 +46,10 @@ import org.apache.kyuubi.events.KyuubiEvent
  * @param sessionId the identifier of the parent session
  * @param sessionUser the authenticated client user
  * @param executionId the query execution id of this operation
+ * @param operationRunTime total time of running the operation (including fetching shuffle data)
+ *                         in milliseconds
+ * @param operationCpuTime total CPU time of running the operation (including fetching shuffle data)
+ *                         in nanoseconds
  */
 case class SparkOperationEvent(
     @KVIndexParam statementId: String,