## Overview

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> [!NOTE]
> This lab only supports Chrome browser.

In this practice, participants will learn how to use TiKV MVCC In-Memory Engine (IME). This feature is primarily used to accelerate queries that need to scan a large number of MVCC historical versions, that is, the total number of versions scanned (total_keys) is much greater than the number of versions processed (processed_keys).

### Tasks

+ Initialize the TiDB Cluster.
+ Learn how to use the TiKV MVCC In-Memory Engine (IME).
+ Learn how to leverage the TiKV MVCC In-Memory Engine (IME) to improve query performance.

> [!TIP]
> Click **Start** to launch the lab environment.
> Once the environment is ready, select **Next** on the bottom toolbar to advance to **Module 1**.
> And, follow the step-by-step lab guide to connect to the hands-on environment and begin your tasks.