# 8 Debug mode 调试模式

#### Overview概述

Debug mode may be used to diagnose performance problems with frontend
pages.调试模式可用于诊断前端页面的性能问题。

#### Configuration配置

Debug mode can be activated for individual users who belong to a user
group:可为所属用户组的各个用户激活调试模式：

-   when configuring a [user
    group](/manual/config/users_and_usergroups/usergroup#configuration);当配置[user
    group](/manual/config/users_and_usergroups/usergroup#configuration)时；
-   when viewing configured [user
    groups](//manual/web_interface/frontend_sections/administration/user_groups).当查看配置[user
    groups](//manual/web_interface/frontend_sections/administration/user_groups)时；

When *Debug mode* is enabled for a user group, its users will see a
*Debug* button in the lower right corner of the browser window: 当*Debug
mode* 为用户组启用时，其用户将在浏览器窗口的右下角看到 *Debug* 按钮：

![](../../../assets/en/manual/web_interface/debug_button.png)

Clicking on the *Debug* button opens a new window below the page
contents which contains the SQL statistics of the page, along with a
list of API calls and individual SQL statements:单击 *Debug*
按钮将在页面内容下方打开一个新窗口，其中包含页面的SQL统计信息，以及API调用和各个SQL语句的列表：

![](../../../assets/en/manual/web_interface/debug_mode.png){width="600"}

In case of performance problems with the page, this window may be used
to search for the root cause of the
problem.如果页面出现性能问题，可以使用此窗口搜索问题的根本原因。

::: notewarning
Enabled *Debug mode* negatively affects frontend
performance.启用 *Debug mode* 会对前端造成一定的性能影响。
:::