ram utilization in linux

Note: This content is excerpted from the "DevOps Troubleshooting: Best Practices for Linux server Operations" book System load The average system load is probably the first basic metric to use when solving problems that cause the

Requirements: Use the free command to accurately monitor RAM utilizationKnowledge: GREP,FREE,AWK,BCThe script is as follows[[email protected] scripts]# cat mem.sh #!/bin/bash-# free-m represents output in m units, and if the memory is large enough,

In the analysis of the system, one of the first and most basic tools is often a simple measurement of the CPU utilization of the system. Linux and most unix-based operating systems provide a command to display the system's average load (loadaverage).

During system maintenance, you may need to look at the CPU usage at any time, and analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage through the top command. When you run the top command, the

Liunx view the commands for performance (top and glance) Top command for Linux The top command is a commonly used performance analysis tool under Linux to display the resource consumption status of each process in real time, similar to the Task

Linux Performance View Commands: Linux Performance monitoring: CPU Chapter CPU usage depends largely on what resources are running on the CPU, such as copying a file that usually takes up less CPU, because most of the work is done by DMA (Direct

1. Get CPU Utilization The typedef struct CPU_PACKED //defines a CPU occupy structure body { char name[20]; Defines a char-type array name with 20 elements unsigned int user; Defines a user unsigned int of unsigned type

1.0 performance monitoring Performance Tuning is a process of finding system bottlenecks and adjusting the operating system to eliminate these bottlenecks. Many System Administrators think that performance tuning is like cooking with recipes: simply

A Linux server Performance View 1.1 CPU Performance View 1, view the number of physical CPUs:cat /proc/cpuinfo |grep "physical id"|sort|uniq|wc -l2. View the number of cores in each physical CPU:cat /proc/cpuinfo |grep "cpu cores"|wc -l3, the number

Embedded systems are different from general-purpose PCs. Generally, they do not have storage devices such as hard disks. Instead, they use flash chips, small flash cards, and other storage devices designed for embedded systems, this article analyzes