---
title: 系统性能功能说明
description: "查看系统性能分析支持任务的帮助信息。"
url: https://www.hikunpeng.com/document/detail/zh/kunpengdevkithistory/devkit_24_t50/cliuserguide/KunpengDevKitCli_0032.html
sourcePath: /source/zh/kunpengdevkithistory/devkit_24_t50/cliuserguide/KunpengDevKitCli_0032.html
indexId: f7e76c8458eb70c1c9b58a0dd13e7c29fdc4cb6e6cdd1dc19dd1aae39ee5d77d85
---
# 系统性能功能说明

#### 命令功能

查看系统性能分析支持任务的帮助信息。


#### 命令格式

```
devkit tuner [-h | --help] TASK [ARGS]
```


示例均为RPM包安装使用。


#### 使用示例

执行以下命令，查看系统性能分析支持的功能信息：

```
devkit tuner -h
```

返回信息如下：

```
Usage: devkit tuner [-h | --help] TASK [ARGS]

 The most commonly used devkit tuner sub tasks are:
   help       Get help information
   top-down   Run the top-down collection and analysis task
   hotspot    Run the hotspot collection and analysis task
   miss       Run the miss collection and analysis task
   numafast   Run the numafast collection and analysis task
   hpc-perf   Run the hpc-perf collection and analysis task
   roofline   Run the roofline collection and analysis task
   memory     Run the memory collection and analysis task

 See 'devkit tuner TASK --help' for more information on a specific task.
```