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CPU usage. T is sorted by time/accumulated time. W writes the current settings to the ~/.TOPRC file. This is the recommended way to write top configuration files. (7) Last skill: Top command Tips 1. Enter uppercase P, the result is sorted by CPU consumption in descending order. 2. Enter capital M, and the results are sorted in descending order of memory consumption. 3. Press the number 1 to show the load of all CPU cores. 4, top-d 5 refresh every 5 seconds, default 1 seconds 5. Top-p 4360,4358
1. Download the compressed package firstwget http://sourceforge.net/projects/nmon/files/download/nmon_x86_12a.zip/download2. Unzip and Modify permissionschmod +x NMON_X86_RHEL52MV Nmon_x86_rhel52/usr/bin/nmon3. Startup may report the following error, install the appropriate package, if not reported, the installation is successful, can be used directlyError 1:Error while loading shared Libraries:libncurses.so.5:cannot open Shared object file:no such file or directorySolve:Yum Install Ncurses-deve
/wyfs02/M02/7C/BD/wKiom1bW6FWyxmnBAAFwopE-UZE515.png "title=" 03.png "alt=" Wkiom1bw6fwyxmnbaafwope-uze515.png "/>650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M02/7C/BB/wKioL1bW6QGy3pWrAAFDrNnnjyw435.png "title=" 04.png "alt=" wkiol1bw6qgy3pwraafdrnnnjyw435.png "/> Good I will show these several, specific beauty I hope you can seriously to understand, I think we will love her as much as I do!"Summary: Monitorix is a powerful, beautiful appearance of open source software, I believe that
capacity of Eden District 88.2072462755091% used # Eden area usage from Space: # s Urvior1 Zone capacity = 71303168 (68.0MB) # Survior1 area capacity used = 3952576 (3.76947021484375MB) # Surviror1 zone used Situation free = 67350592 (64.23052978515625MB) # Surviror1 area remaining capacity 5.543338551240809% used # Survior1 area use proportional to Space: # Survior2 Zone capacity = 71303168 (68.0MB) # Survior2 area capacity used = 0 (0.0M B) # Survior2 area Use
Oom?Java.lang.OutOfMemoryError:java head space heap memory overflowJava.lang.OutOfMemoryError:Permgen Space Java Eternal Overflow, that is, methods to overflow, generally because of the emergence of a large number of classes and JSPs, or the use of Cglib reflection mechanism,This can be resolved by changing the size of the method area and modifying it in the form of a similar-xx:permsize=64m-xx:maxpermsize=256m. In addition, too many constants, especially strings, can cause the method area to ov
Tsar is a collection of information on the server system and application of the collection reporting tools, such as the collection of server System information (CPU,MEM, etc.), as well as application data (Nginx, Swift, etc.), the collected data stored on the server disk, can always query historical information, Data can also be sent to the Nagios alarm.
Tsar can be more convenient to add modules, only need to follow the requirements of Tsar to write
installation, pay attention to language selection when you can choose Chinese;1.4. Establish Oracle Connection (required)(1) Install Oracle client instantclient_11_2;Configure the System environment variable path and tns_admin are the installation paths for instantclient_11_2;To configure the Tnsnames.ora file, fill in the required database instance information as follows:(2) establishing an Oracle connectionIf you need to monitor the operating system synchronously, you need to enter the user n
shows the application and the process number, so you can find the process number by this command when you want to kill a process. the command parameters for Nethogs are as follows:Options-h Display available commands usage.-V Prints Version info.-D delay for refresh rate.-V Select view mode-P sniff in promiscious mode (not recommended).-T TraceMode.-C Limit number of refreshes-s sort by traffic sentThere are fewer commands to display the page, only a few:M cycle between display modes (KB/S, KB,
Monitoring indicators
Metrics that typically require monitoring for performance testing include:
1. Server Linux (including CPU, Memory, Load, I/O).
2. Database: 1. Mysql 2.Oracle (Cache hit, index, single SQL performance, database [/url] threads, number of data pool connections).
3. Middleware: 1. Jboss 2. Apache (including number of threads, number of connections, log).
4. Network: throughput, throughput
Need to monitor Linux server system performance? Try these tools built in or attached to the system below. Most Linux distributions are equipped with a large number of monitoring tools. These tools provide metrics that can be used to obtain relevant information and system activities. You can use these
One of the primary goals of managing certificates is to improve the security level of the enterprise, where authentication and access management should be valued. In this article, we'll start with a brief overview of the CA definition, and then focus on the application of Windows Server 2008 with professional certificate monitoring tools (Pkiview.msc and Certutil.exe). For an enterprise, it is very importan
Need to monitor Linux server system performance? Try these tools built in or attached to the system below. Most Linux distributions are equipped with a large number of monitoring tools. These tools provide metrics that can be used to obtain relevant information and system activities. You can use these
210.27.48.1Print packets that Helios and hot or communicate with AcesTcpdump host Helios and \ (hot or ACE \)Intercept host 210.27.48.1 and host 210.27.48.2 or 210.27.48.3 communicationTcpdump host 210.27.48.1 and \ (210.27.48.2 or 210.27.48.3 \)Prints the IP packets that the ACE communicates with any other host, but does not include packets between the Helios.Tcpdump IP host ace and not HeliosIf you want to get host 210.27.48.1 in addition to the IP packets that communicate with all hosts exce
Munin installation and configuration can refer to the first article:[Linux Utilities] Installation and configuration of Linux monitoring tools Munin http://www.cnblogs.com/rond/p/3757804.htmlThe result of Munin is shown in HTML. So the result is very simple, just need to deploy a Web server. But if you need to look at the results, you need to configure them.This post is divided into 2 sections:1. Web serve
Network traffic monitoring tools have a lot of, such as: MRTG, Cacti, Zabbix and so on, they have their own characteristics, different focus, only for different application scenarios for a variety of special needs. In addition to network traffic monitoring tools, there are nagios such a
Here are the 4 powerful monitoring tools I want to present to you.htop– Interactive Process ViewerYou may know the standard tool top for viewing real-time processes on a machine. If you don't know, run the top look and run the man top reading help manual.Htop is an extended version of top, with a richer overview (such as full command, visualization, graphical user interface GUI and user interface UI), with
to limited time, in the latter several blog, will detail the real-time priority process, static priority process.Introduced a half-day, process and thread, mainly to introduce two system monitoring tools and a process viewing tool.1, real-time system monitoring Tool Dstat,1DSTAT[-AFV] [options:] [Delay [Count]]-A: Display cdngy-C: Displays statistics of CPU perf
--version Output version information and exit--write-w write running configuration into home directory if no config files were loadedInnotop is a MySQL and InnoDB transaction/status Monitor, like ' top ' forMysql. IT displays queries, InnoDB transactions, lock waits, deadlocks,Foreign key errors, open tables, replication status, buffer information,Row operations, logs, I/O operations, load graph, and more. You canMonitor many servers at once with Innotop.[Email protected] innotop-1.9.0]#/innotop
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