system load

PHP 5.3.1 MySQL 5.0.89 Nginx 0.8.33 or 0.7.65 (optional) This is much better than what one-click installation package has been circulated on the Internet. It is strongly recommended that this installation method be suitable for all cainiao and

System statistics mainly describe some features related to system hardware, such as the performance and utilization of cpu and io systems. This information is very important for the query optimizer. During the execution plan selection process, the

Use ten commands to check Linux server performance within one minute If the load on your Linux Server suddenly surges and an alert message is sent to your mobile phone, how can I find out the Linux performance problem in the shortest time? Let's

Understand the average Linux processor load. you may have a full understanding of the average Linux Load (loadaverages. The average load value can be seen in the uptime or top command. They may look like this: www.2cto. comloadaverage: 0... to

Php tips: several practical PHP functions. 1. sys_getloadavg () sys_getloadavt () can obtain the system load. This function returns an array containing three elements. each element represents 1. sys_getloadavg () in the past 1, 5, and 15 minutes ()

Install sysstat using iostat, sar, indicator meaning the main command provided by the linuxsysstat toolkit: iostatmpstatsarsar the last two parameters are generally intervalcount1, sar-u15 output CPU usage statistics, output once per second, output 1

1. Introduction to OSS The OSS hierarchy is very simple. applications access the OSS driver through APIS (defined as), and the OSS driver controls the sound card. As shown in: OSS Structure Sound cards mainly have two basic devices: mixer and

Author: Cao jianghua ProFTPD is developed for the weaknesses of Wu-FTP. In addition to improved security, it also has many features that Wu-FTP does not have, and can run in stand-alone and xinetd modes. ProFTP has become the most popular FTP

SOA (Service-Oriented Architecture) is a service-oriented architecture, the most widely used word in various technical journals in the past one or two years. Currently, many architecture designers and design developers simply equate SOA with Web

Linux performance analysis sar command explanation SAR (system activity Reporter System Activity Report) is currently one of the most comprehensive system performance analysis tools in Linux. It can report system activities from multiple parties,

This article will continue the first part and introduce the impact of SOA on enterprise-level architecture design, and how to ensure that the system architecture can meet different service level requirements in the system when building an enterprise

First, the installation of Mutt1 yum-y Install postfix2 #需要安装sendmail并开启防火墙的25端口, if you need to receive mail 110 port also open 3 yum-y install Mutt　　Second, configuration informationAbout the configuration information, there is a point to explain,

Turn the notes of a great God.Linux performance optimization: 1, CPU,MEM2, DISK--RAID3, network-related peripherals, NIC Linux system performance analysis: Top:linux system load, Cpu,mem,swap, CPU-and memory-intensive processes, killing

ObjectiveGlances can provide Unix and Linux performance experts with the ability to monitor and analyze performance data, including: CPU usage Memory usage Kernel statistics and running queue information Disk I/O speed,

1. How do I see the current Linux system with several physical CPUs and the number of cores per CPU?Number of physical CPUs: Cat/proc/cpuinfo |grep-c ' physical ID 'How many cores does the CPU have: Grep-c processor/proc/cpuinfoDivide the total

First, glances use1. IntroductionGlances is an open source command line system Monitoring tool for Linux and BSD, which is developed using the Python language to monitor CPU, load, memory, disk I/O, network traffic, file system, system temperature

MONGDB Performance pressure test, random query, data volume 100 million records Operating system centos6.4x64 bit From the test results, when MongoDB all the data into memory, query speed according to the size of the document, performance

Java Application Performance optimization is a commonplace topic, the author based on personal experience, the Java performance optimization is divided into 4 levels: Application layer, database layer, framework layer, JVM layer. Through the

Currently Linux has some Linux system monitoring tools written in the Python language such as Inotify-sync (file system security monitoring software), glances (resource monitoring tools) in the actual work, Linux The system administrator can write a

1. TopThe top command can visually see the CPU usage of the system, as well as the use of memory, when the system is particularly slow to use this command to see the CPU usage, it is possible that a process of the CPU is full.T: Turn off or turn on