性能监控free-阿里云

性能监控之 Linux 命令 top、vmstat、iostat、free、iftop 基础

一、前言 “子曰：“温故而知新，可以为师矣。”-----《论语》二、top 执行命令： top [-] [d] [p] [q] [c] [C] [S] [s] [n] 参数说明： d：指定每两次屏幕信息刷新之间的时间间隔。当然用户可以使用 s 交互命令来改变之。 p：通过指定监控进程 ID 来仅仅...

linux性能监控:内存监控命令之free命令

内存监控命令之free命令1概述：free命令可以显示当前系统未使用的和已使用的内存数目，还可以显示被内核使用的内存缓冲区。2常用命令格式：free(选项)3命令参数：-b：以Byte为单位显示内存使用情况； -k：以KB为单位显示内存使用情况； -m：以MB为单位显示内...

对Linux服务器进行性能监控和调优，请问相关的free命令是干什么的？

Linux系统硬件资源和性能监控命令: free

free是查看机器内存使用情况的命令，一般的命令格式为： free -m -m选项可以让数值以MB为单位显示。在服务器之家(www.server110.com)的机器上这个命令的显示结果如下图：图中圈住的4个数值是比较重要的 217：已经使用的物理内存 286：剩余的物理内存 10：已经使用的s...

linux 性能监控命令4——free

原文转自网络在Windows系统中查看内存的使用情况很简单，想必大家都已经耳熟能详了，那么在Linux系统如何查看内存使用情况呢？下面和大家分享在Linux系统下查看内存使用情况的free命令：[root@scs-2 tmp]# free &...

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更新时间 2024-02-29 15:35:26

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