rails performance monitoring

Php performance monitoring extension xhprof performance analysis tool Php performance monitoring extension xhprof is a good tool in general. This section describes how to install and use it in ubuntu.Install xhprof: Wget http://pecl.php.net/get/xhpro

HTML performance optimization, website performance monitoring and optimizationAbstract: Page optimization is necessary to adjust the HTML code in the webpage. It can effectively streamline the redundant code in the webpage, speed up the webpage display, and reduce the space occupied by the search engine server by the webpage, to improve user experience and search

lightweight processes in the running queueUS: User-State CPU utilizationSY: System State CPU usageID:CPU Idle Rate2. Toptop-09:42:04 up 3 days, 3 min, 1 user, load average:0.00, 0.01, 0.05tasks:108 Total, 3 running, sleeping, 0 Stopped, 0 zombie%cpu (s): 0.0 us, 0.0 sy, 0.0 ni,100.0 ID, 0.0 wa, 0.0 hi, 0.0 si, 0.0 stkib mem:1015472 Total , 104568 free, 84224 used, 826680 Buff/cachekib swap:0 Total, 0 free, 0 used.

This article implements Python's method of monitoring Linux performance and process consumption performance in an instance form, implementing the following code: #-*-Coding:utf-8-*-"" "Created on Tue June 10:20:13 2014 @author: Lifeix" "" from collections import ordereddict Import time import os def cpuinfo (): lines = open ('/proc/stat '). ReadLines

Introduction: Most of the services are running on Linux, Linux is now a very wide range of applications, but there will still be a lot of problems, we will discuss our performance monitoring metrics, performance monitoring is nothing more than I/O, memory, cpu,tcp connection number, network, Process or thread to start,

queue.%UTIL:I/O requests account for the percentage of the CPU, the higher the ratio, the more saturated the description.1. When the value of Avgqu-sz is low, the equipment utilization is higher.2. When the value of%util is close to 1%, it indicates that the device bandwidth is already fullTo determine the system bottleneck, it is sometimes necessary to combine several SAR command options.Suspected CPU bottlenecks, sar-u and sar-q can be used to viewSuspect memory bottlenecks and can be viewed

Introduction A few days ago, w3ctech's entry into the famous enterprise-Baidu frontend Fex session once said that he could build his own front-end performance monitoring system seven days after listening to the lecture. Since he said it, he could not give up. In the previous article, the beauty of front-end data I believe everyone has a certain understanding of front-end data. The following describes the

http://os.51cto.com/art/201412/460698_all.htm2014-12-19 10:55 Translator: Andyxue linux Chinese font size:T | T In this article we will list a series of the most frequently used performance monitoring tools, and provide a corresponding introduction link to each of the tools introduced, roughly divided into two categories, based on the command line and provide graphical interface.Ad:51cto Net + 12th salon: T

IntroductionBefore the W3ctech into the name enterprise-Baidu front-end FEX "bombast" said that after seven days after the lecture can build their own front-end performance monitoring system, since said out of can not promise. The beauty of front-end data in a previous article believe that we have a certain understanding of the front-end data, the following is a detailed description of the

.pptxWhy does performance affect the company's earnings? The root cause is also that performance affects the user experience. Loading delays, operation Lag, and so on will affect the user experience. In particular, mobile users have low tolerance for page response delays and connection interruptions. Imagine you're holding a cell phone. To open a webpage to see a message but load a half-day mood, you probab

Monitoring is the core task of cluster management. Monitoring data can be used for scheduling tasks, load balancing, reporting hardware and software failures to administrators, and extensive control of system usage. Monitoring information must be obtained without impacting the performance of the cluster. This article d

Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tools that will help every Linux/Unix system admi

Monitoring is the core task of cluster management. Monitoring data can be used for scheduling tasks, load balancing, reporting software and hardware faults to administrators, and extensively controlling system usage. The monitoring information must be obtained without affecting the cluster performance. This article wil

Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tools that will help every Linux/Unix system admi

Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tools that will help every Linux/Unix system admi

Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have Linux Commands Daily monitoring and debugging of Linux syste

20 Common Linux performance monitoring Tools/commands20 command-line system monitoring tools that are useful and most commonly used by Linux/unix system administrators. These commands can be used under all versions of Linux to monitor and find the actual cause of system performance. These

Linux performance monitoring command vmstat I. Overview Monitoring is usually divided into machine monitoring and service monitoring. Machine Monitoring is the basic monitoring to obtai

18 command line tools for Linux performance monitoringDaily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compil

Transferred from: http://www.cocoachina.com/ios/20151118/14270.htmlImplementation principle and performance monitoring of IOS hybrid APP2015-11-18 11:39 Edit: Lansekuangtu Category: iOS development Source: Cocoachina 1 2571 iOS principles hybrid App performance monitoringauthor Dong Yifan Readme: as a ten-year code programmer, my best domain is the mobile platfor