rails performance monitoring

2015-12-27 iOS DevelopmentFor every system administrator or network administrator, it is very difficult to monitor and debug Linux system performance issues every day. I've had 5 years of experience working with Linux administrators and know how to monitor the system to keep it running properly.To do this, we have written 20 command-line system monitoring tools that are useful and most commonly used by Linu

Joe Zonker Brockmeier mentioned five tools to monitor and improve Linux system performance in an article on the Linux Foundation website. These five tools cover Kernel optimization, network monitoring, and System monitoring. They are KDE System Monitor, Dstats, The Sysstat Auite, Ifstat network monitoring, and Linux Ke

of monitoring the entire disk. Where,AVG. Disk SEC/readAndAVG. Disk SEC/WriteIt is two counters that mainly consider disk I/O performance. They do not need additional information for reference and can directly determine the average latency of I/O requests. AVG. Disk SEC/read Describes the average time (in seconds) required to read data from a disk ). AVG. Disk SEC/read is the average time

The system is dragged down due to performance bottleneck, which is undoubtedly not expected by administrators. Since Windows Vista, Microsoft has strengthened its monitoring of the performance of various system resources. Its main technical means are so-called performance counters. Using these counters, we can effectiv

media content, the data must be available at the time of transmission.2 Online monitoring When the server is officially online, you can use one or two users to connect to your server to monitor the overall performance of the server. You can also create a simple program or script that automatically generates warning logs or messages. For example, open your eyes and create a simple script to email you when W

The JDK itself provides many convenient JVM performance tuning monitoring tools, in addition to the integrated VISUALVM and Jconsole, there are JPS, Jstack, Jmap, Jhat, Jstat and other small tools, this blog hope to play a useful, Let's start to understand the common tools for tuning JVM performance.In real-world enterprise Java development, sometimes we encounter these problems: OutOfMemoryError,

For system and network administrators, it is a heavy task to monitor and debug the performance of Linux systems on a daily basis. After 5 years working as an administrator in the IT field as a Linux system, I gradually realized how difficult it was to monitor and keep the system up and running. For this reason, we have written a list of the 18 most commonly used command-line tools that will help each Linux/unix system administrator work. These command

CentOS system performance monitoring Linux provides a very good file Virtual System (/proc) to monitor system performance. The/proc file virtual system is a mechanism used by the kernel and kernel module to send information to processes. It exists in the memory instead of the hard disk. The main functions of the/proc file virtual system include process informatio

Linux performance monitoring and Common commands As a DBA, it is also necessary to have certain Linux server performance monitoring knowledge. Sometimes Oracle database performance problems are caused by server performance bottlen

Linux performance monitoring study notes www.2cto. comLinux performance monitoring is generally divided into these aspects: 1. CPU2.Memory3. IO4.Network these four aspects are independent of each other but affect each other. Common performance

Label:Original: Fourth chapter--SQLSERVER2008-2012 Resources and performance monitoring (3)This article is the last chapter in this series to monitor memory usage. Monitoring the memory of the server is a very important thing, and there are many situations that can cause memory consumption. So check them regularly.This article uses reliability and

I. OverviewMonitoring is usually divided into machine monitoring and service monitoring, machine monitoring is the basic monitoring, the purpose is to obtain the current state of operation of the system, service monitoring is the main purpose, but also the most should be con

Tags: des style blog http color io os ar strongOriginal: 5. SQL Server database performance monitoring-current requestFor systems running on-line, current database performance monitoring typically monitors the following points:(1) Whether there is obstruction (Blocking);(2) whether there is waiting (waiting), blocking

Reprint Address: http://www.uis.cc/content-9-137-1.html Introduction Before the W3ctech into the name of the enterprise-Baidu front-end FEX special session had "bombast" said after listening to the lecture after seven days can build their front-end performance monitoring system, since said out also can not promise. Previous article The beauty of the front-end data I believe that we have a certain understand

same as the following, the block exercise is no longer one by one listed: ====================================================================== Sybase Adaptive Server Enterprise System Performance ====================================================================== Server version:adaptive Server Enterprise/11.9.2/1031/p/nt (IX86)/os 3. Server Name:server is unnamed Run Date:may 28, 2001 Statistics cleared at:15:57:27 Statistics sampled at:

(Paging file), the path name is C \ Pagefile.sys, the default is hidden. The operating system transparently uses paging file to store data, and application is unable to control and perceive whether the data is stored in physical memory or in virtual memory, that is, the operating system decides to use physical memory, or paging file to store cached data. In general, monitor the use of memory resources at the Windows level by Performance Monitor. 1,

If you're looking for a very easy-to-use Linux performance monitoring tool right now, I highly recommend installing and using the Nmon command-line utility.Nmon Monitoring ToolsThe Nmon is a system administrator-oriented tuning and benchmarking tool that can be used to display performance data about the following:

/s rkb/s wkb/s avgrq-sz avgqu-sz await r_await w_await SVCTM%utilVDA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00iostat-x VDA 1 2 command meaning: Every 1 seconds print the VDA this disk usage information, print two times altogether. %util indicates CPU busy, higher and busierUniversal Command-SAR(System Activity Report) is one of the most comprehensive systems performance analysis tools available on Linux and can be used to report

First, glances:glances is a very good cross-platform performance monitoring tool that provides CPU, CPU queue, memory, virtual memory, network, I/O, and the list of processes that most occupy the server's resources.Indicator monitoring information, and at run time depending on the resource usage of different color labeling its importance, very intuitive, the foll

 jvm--performance monitoring and fault handling toolsHotspot virtual machines provide a number of virtual machine runtime debugging tools that allow developers to monitor and optimize the performance of virtual machines and applications while the app is running.JPS:JVM Process Status ToolDisplays all the hotspot virtual machine processes within the specified sy