monitoring tools

1, Jdb (the Java debuger)JDB is used to debug core files and running Java processes in real-time, with rich commands to help you debug, and its functionality is very similar to the DBX in Sun Studio, but JDB is specifically designed for Java applications.Now it should be said that the daily development of the jdb is seldom used, because now the IDE has been packaged for us, such as the use of Eclipse Invoke program is very convenient, as long as in very specific circumstances may use this comman

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

grouped by enclosing units, and the analysis of memory leaks mainly uses the functions of the "Heap histogram" and oql tags. The former can find the object with the largest total capacity in memory. The latter is a standard object query language that uses SQL-like syntax to query statistics on objects in memory.Vi. Jstack:java Stack Trace ToolThe Jstack command is used to generate a thread snapshot of the current moment of the virtual machine. The thread snapshot is the collection of method sta

If you have a website, there may be some problems, using some network monitoring tools can help you to monitor these problems, help you take preventive measures. Here we have listed 12 well-organized network monitoring tools for your reference. Splunk Splunk is a top-level log analytics software that you need to Splu

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

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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, including: file read/write, system call usage, disk I/O, CPU efficiency, memory usage, process activity and IPC-related activities. Common sar command formats SAR [Options] [-A] [-o file] T [N] Where: T indic

Original connection:Administrator-required Linux system monitoring tools#1: top-process activityTop provides a real-time, dynamic view of the current running system, which is the running process. By default, displays the task with the highest CPU utilization in the system and refreshes every 5 seconds.#2: Vmstat-system activity, hardware and system InformationUse the Vmstat command to get information about

If you are unfamiliar with the six open-source system monitoring tools, you are advised to refer to the relevant technical documents.1. Nagiox-network monitoring software Nagios is well-known and undoubtedly the best system monitoring tool. As you know, most O M teams use this tool, and so far, no tool exceeded it. Ho

ArticleDirectory Linux R D practice performance monitoring tools Abstract:This article summarizes eight very practical Linux Command Line performance monitoring tools. These commands support all Linux systems and can be used not only to monitor the system, but also to identify the causes of performan

Zabbix, is a web-based interface to provide distributed system monitoring, network monitoring functions of enterprise-class open source software, its function is quite perfect and to be fully proficient in the mastery also need to have enough learning ability and research spirit. No wonder old left often see many large network companies recruit Zabbix system engineers full-time system and software

1. zenoss Zenoss is an enterprise-level open-source server and network monitoring tool. It is most notable for its virtualization and cloud computing monitoring capabilities. It is hard to see that other old monitoring tools have this function.2. ossim Ossim is short for open source security information manag

JVM Introduction to Monitoring ToolsVISUALVM is a visual tool that integrates multiple JDK command-line tools to provide you with powerful analytical capabilities. All of this is free! The command-line tools It includes are jps,jstat,jmap,jinfo,jstack,jconsole, which are consistent with the standard version of the JDK.JPS: Similar to PS on UNIX, used to show the

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 enter

A product requires stress testing, so I decided to use the performance tool provided by Windows2003 for system performance monitoring. If you have sufficient permissions in the test environment, you can easily use a dedicated machine to Execute Performance Tools and remotely monitor the target server, compared to executing monitoring

When there is a problem with the Linux system, we not only need to look at the system log information, but also use a lot of performance monitoring tools to determine what part (memory, CPU, hard disk ...). ) out of the question. In the Linux system, all the operating parameters are saved in the virtual directory/proc, in other words, we use the Performance monitoring