diff --git a/tidb-cloud/tune-performance.md b/tidb-cloud/tune-performance.md
index e50c9a4971669..da3d11d160563 100644
--- a/tidb-cloud/tune-performance.md
+++ b/tidb-cloud/tune-performance.md
@@ -1,16 +1,28 @@
---
title: Analyze and Tune Performance
-summary: Learn how to analyze and tune performance of your TiDB Cloud cluster.
+summary: Learn how to analyze and tune performance in TiDB Cloud.
aliases: ['/tidbcloud/index-insight']
---
# Analyze and Tune Performance
+
+
TiDB Cloud provides [Slow Query](#slow-query), [Statement Analysis](#statement-analysis), and [Key Visualizer](#key-visualizer) to analyze performance.
-- Slow Query lets you search and view all slow queries in your TiDB cluster, and explore the bottlenecks of each slow query by viewing its execution plan, SQL execution information, and other details.
+
+
+
+
+TiDB Cloud provides [Slow Query](#slow-query) and [SQL Statement](#sql-statement) to analyze performance.
+
+
+
+- Slow Query lets you search and view all slow queries in your TiDB clusterinstance, and explore the bottlenecks of each slow query by viewing its execution plan, SQL execution information, and other details.
-- Statement Analysis enables you to directly observe the SQL execution on the page, and easily locate performance problems without querying the system tables.
+- Statement AnalysisSQL Statement enables you to directly observe the SQL execution on the page, and easily locate performance problems without querying the system tables.
+
+
- Key Visualizer helps you observe TiDB's data access patterns and data hotspots.
@@ -18,8 +30,12 @@ TiDB Cloud provides [Slow Query](#slow-query), [Statement Analysis](#statement-a
>
> Currently, **Key Visualizer** is only available on TiDB Cloud Dedicated clusters.
+
+
## View the Diagnosis page
+
+
1. On the [**Clusters**](https://tidbcloud.com/project/clusters) page of your project, click the name of your target cluster to go to its overview page.
> **Tip:**
@@ -28,11 +44,27 @@ TiDB Cloud provides [Slow Query](#slow-query), [Statement Analysis](#statement-a
2. In the left navigation pane, click **Monitoring** > **Diagnosis**.
+
+
+
+
+1. On the [**TiDB Instances**](https://tidbcloud.com/tidbs) page of your organization, click the name of your target instance to go to its overview page.
+
+ > **Tip:**
+ >
+ > You can use the combo box in the upper-left corner to switch between organizations and instances.
+
+2. In the left navigation pane, click **Monitoring**.
+
+
+
## Slow Query
By default, SQL queries that take more than 300 milliseconds are considered as slow queries.
-To view slow queries in a cluster, perform the following steps:
+To view slow queries in a TiDB clusterinstance, perform the following steps:
+
+
1. Navigate to the [**Diagnosis**](#view-the-diagnosis-page) page of a cluster.
@@ -42,10 +74,28 @@ To view slow queries in a cluster, perform the following steps:
4. (Optional) You can filter slow queries based on the target time range, the related databases, and SQL keywords. You can also limit the number of slow queries to be displayed.
+
+
+
+
+1. Navigate to the overview page of the TiDB instance, and then click **Monitoring** > **Slow Query** in the left navigation pane.
+
+2. Select a slow query from the list to view its detailed execution information.
+
+3. (Optional) You can filter slow queries based on the target time range and SQL keywords. You can also limit the number of slow queries to be displayed.
+
+
+
The results are displayed in the form of a table, and you can sort the results by different columns.
+
+
For more information, see [Slow Queries in TiDB Dashboard](https://docs.pingcap.com/tidb/stable/dashboard-slow-query).
+
+
+
+
## Statement Analysis
To use the statement analysis, perform the following steps:
@@ -58,8 +108,28 @@ To use the statement analysis, perform the following steps:
4. (Optional) If you only care about certain databases, you can select the corresponding schema(s) in the next box to filter the results.
+
+
+
+
+## SQL Statement
+
+To use the **SQL Statement** page, perform the following steps:
+
+1. Navigate to the overview page of the TiDB instance, and then click **Monitoring** > **SQL Statement** in the left navigation pane.
+
+2. Click a SQL statement in the list to view its detailed execution information.
+
+3. In the time interval box, select the time period to be analyzed. Then you can get the execution statistics for SQL statements across all databases in this period.
+
+4. (Optional) If you only care about certain databases, you can select the corresponding schema(s) in the next box to filter the results.
+
+
+
The results are displayed in the form of a table, and you can sort the results by different columns.
+
+
For more information, see [Statement Execution Details in TiDB Dashboard](https://docs.pingcap.com/tidb/stable/dashboard-statement-details).
## Key Visualizer
@@ -74,6 +144,8 @@ To view the key analytics, perform the following steps:
2. Click the **Key Visualizer** tab.
-On the **Key Visualizer** page, a large heat map shows changes on access traffic over time. The average values along each axis of the heat map are shown below and on the right side. The left side is the table name, index name and other information.
+On the **Key Visualizer** page, a large heat map shows how access traffic changes over time. The average values along each axis of the heat map are shown below and on the right side. The left side displays the table name, index name, and other related information.
For more information, see [Key Visualizer](https://docs.pingcap.com/tidb/stable/dashboard-key-visualizer).
+
+