Problem description:
There will always be a loadavg alarm after the project is launched
The server runs normally after going online for a period of time. In a certain period of time (usually two hours after going online), The loadreport
One, what is the system average load (load average)? In the Linux system, uptime, W, top and other commands will have the average load average output of the system, then what is the average system load?The average system load is defined as the
Algorithm Linux LOADAVG algorithm
Published by: Biti_rainy
Today read Linux source code on the CPU load calculation method, while Google search everywhere for reference, dizzy for half a day, finally understand the CPU load calculation method,
The loadavg in Linux is rich in content. The following is an example of enhanced learning:
After 1 uptime, the results are analyzed as follows:
PM up 2 days, 2 users, loadaverage: 8.13, 5.90, 4.94
9/84 5662
The final content of the command
See http://unix.derkeiler.com/Newsgroups/comp.unix.shell/2006-11/msg00577.htmlRe: How can/proc/loadavg be used?
From: Bruce Barnett >
Date: Wed, 15 Nov 2006 13:00:11 + 0000 (UTC)
Bo Yang writes:
In Linux proc filesystem, there is a
Server monitoring with PythonIn the Linux server, everything is a file, that is, the server running information, in fact, can be obtained from some files; after Baidu, you will know that in the Linux system, there is a/proc virtual file system:
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
Linux system monitoring tools, such as Inotify-sync (file system security monitoring software), Glances (Resource monitoring tool), are currently in use in the Python language, Linux The system administrator can write a simple and practical script
This article mainly introduces how to use python to monitor system load scripts in linux. For more information, see the following code:
#! /Usr/bin/env PythonImport OSDef load_stat ():Loadavg = {}F = open ("/proc/loadavg ")Con = f. read (). split
Offers: Zstack cloud computingContent IntroductionCommand-line operations are undoubtedly the most time-consuming process when managing Linux servers. For most users, this means a lot of time to manipulate the bash shell.While most distributions
This email alert script is everywhere, a lot of use of sendmail, Postfix, feel a bit overqualified, and some use Perl net::smtp and AUTHEN::SASL module, but I use Perl is not good, The old send out some baffling mails (for example if (a>1) {print (a)
Memory information/meminfo
Return dict
#!/usr/bin/env pythondef memory_stat(): mem = {} f = open("/proc/meminfo") lines = f.readlines() f.close() for line in lines: if len(line)
CPU information/cpuinfoReturns a list with a
MySQL benchmark test (ii)--Method Purpose:The method is not as high as the higher the better. And should be good at subtraction. To Jane is a kind of wisdom, the first thing to do is to collect MySQL state data. Collected, regardless of the time
/
The code is as follows
Copy Code
* First, this procedure is based on DIV+CSS tutorial new architecture PHP probe, free open source free software, powerful, clear structure, easy to use.1. Support
FreeBSD system parameters detect cpu and memory. This is a php System parameter test. it can detect FreeBSDcpu, memory, update time, and running time. FreeBSD system parameter detection cpu, memory * This is a php Tutorial system this is a php
Here, I will explain the difference between him and cacti nagios ~ And why should we use him ~
Cacti Uses snmp to capture data. Of course, you can use snmp to execute exec to retrieve the data in the script.
Nagios is used to monitor various Server
All values in this file are accumulated from the system startup to the current time. This file only provides information about all CPU sets, and cannot output information about each CPU.
[Root @ localhost ~] # Cat/proc/loadavg4.61 4.36 4.15 9/84 5
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