在系统维护的过程中，随时可能有需要查看 CPU 使用率，并根据相应信息分析系统状况的需要。在 CentOS 中，可以通过 top 命令来查看 CPU 使用状况。运行 top 命令后，CPU 使用状态会以全屏的方式显示，并且会处在对话的模式 -- 用基于 top 的命令，可以控制显示方式等等。退出 t...

linux命令：swap交换分区、free查看内存使用情况、mkswap创建交换分区

mkswap命令简介：用于创建格式化交换分区swap. 1．命令格式： free 查看系统内存使用情况 -m：以...

查看Linux服务器内存使用情况

查看内存使用情况，可以使用命令 free -m 其结果大致如下： ...

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