天耀中华 发表于 2023-12-29 14:00:00

rt_thread系统查看系统内存资源消耗情况

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

在rt_thread_studio软件编译

在编译完成后,使用`arm-none-eabi-size`命令可以查看生成的可执行文件(rtthread.elf)的各个部分的大小。

以下是各列的含义:

- text: 可执行文件中的代码段(包括只读数据)的大小,单位为字节。
- data: 可执行文件中的数据段(包括可读可写数据)的大小,单位为字节。
- bss: 可执行文件中的未初始化数据段(包括全局变量等)的大小,单位为字节。
- dec: 可执行文件的总大小(包括代码、数据和未初始化数据),单位为字节。
- hex: 可执行文件的总大小,以十六进制表示。
- filename: 可执行文件的名称。

下方的两行表示已使用的大小:

- Used Size(B): 使用的Flash空间大小,单位为字节。
- Used Size(KB): 使用的RAM空间大小,单位为千字节(KB)。

对于Flash来说,通常是存储可执行代码的地方,而RAM则用于存储数据和堆栈等运行时需要的空间。

在这个例子中,可执行文件的总大小为102532字节(约100KB),其中代码段占据了93276字节(约91KB),数据段占据了4808字节(约4.7KB),未初始化数据段占据了4448字节(约4.3KB)。使用的Flash空间为98084字节(约95.8KB),使用的RAM空间为9256字节(约9KB)。

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在RT-Thread系统中,`free`指令用于显示系统中的内存信息,包括堆内存和堆栈内存的分配情况。以下是`free`指令显示的内存信息的含义:

- total: 总可用内存的大小,即系统配置的总内存大小。
- used: 已使用的内存大小,包括堆内存和堆栈内存的总和。
- max used: 系统运行过程中已使用内存的最大值。
通过使用`free`指令,可以了解系统中内存的使用情况,包括已使用的内存大小、最大使用值以及未使用的内存大小。这些信息可以帮助进行内存优化和性能分析。


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