Ubuntu users can also use top command to check memory and cpu usage per process. It reports total memory usage and also total RAM usage by the processes. The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of...
%cpuCPU utilization of the process in “##.#” format. Currently, it is the CPU time used divided by the time the process has been running (cputime/realtime ratio), expressed as a percentage. %memRatio of the process’s resident set size to the physical memory on the machine, expresse...
Here are some common ways to check the CPU usage in Linux: top command This is probably the most common way and the most known by any Linux administrator. This simple command can provide not only CPU but also RAM and even system performance information. 'top' command output It automatically...
linux kernel从stext开始启动,整个流程大概就是读取X0(FDT地址)保存到X21中,又将X21保存到__fdt_pointer全局变量中 然后再将__fdt_pointer解析处cmdline数据到boot_command_line全局变量中。 /* * The following callee saved general purpose registers are used on the * primary lowlevel boot path: * * Reg...
In this tutorial, we are going to explain the “du” command used on everyLinuxdistribution such as Ubuntu, Debian, or CentOS. “Du” stands for Disk Usage and every Linux user should use it very often to check the amount of disk space used by directory or file. Using the “du” comm...
This tutorial takes a quick look at some of the most commonly used commands to check hardware information and configuration details on Linux.
Here I directly going to explain how to check the RAM details by using the “dmidecode” command. 1. Open command prompt. 2. Execute the following command: sudo dmidecode --type 17 Or you can use: sudo dmidecode --type 17|less
-h, --human Show all output fields automatically scaled to shortest three digit unit and display the units of print out. Following units are used.B = bytesK = kilosM = megasG = gigasT = terasIf you have a petabyte of RAM (Random-Access Memory) or swap, the number is in terabytes ...
So, this extra memory is for caching purpose to make the system more responsive, there is a dedicated site for this,Linux ate my RAM!. So that's it, how to checklinux memory usagewith command line tools. If you have any suggestion or question, just drop a comment, I'll be happy to...
In Linux ‘cd‘ (Change Directory) command is one of the most important and most widely used command for newbies as well as system administrators. For admins on a headless server, ‘cd‘ is the only way to navigate to a directory to check log, execute a program/application/script and fo...