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Need to monitor Linux server system performance? Try the following built-in system or attachment tools. Most Linux releases 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
Options
Role
-F
Forces the output thread stack when a normal output request is not responded to
-L
Displays additional information about the lock, in addition to the stack
-M
If you call to a local method, you can display the C + + stack
Jstack Execution ExampleJust intercept the part and see this is the 10492 thread snapshot of the current time of the virtual machine process ID. The thread is in the run
handling, and performance analysis capabilities, and is very powerful. The Visual VM also has a large advantage, which has a small impact on the actual performance of the application, making it possible to apply directly to the production environment.As for the specific how to use, it is not demonstrated, relatively simple. In addition to the above two tools, you can also use Jprofiler, Yourkit and other p
more easy-to-use Linux system monitoring tools, the top command takes us to a glance at almost every part of Linux. The following chart is its default interface, but press the ' Z ' key to toggle the different display colors. Other hotkeys and commands have other functions, such as displaying summary information and memory information (second on line fourth), sorting according to different conditions, term
data. 9. SysusageSysusage Use SAR ( SYSSTAT ) and other system commands to monitor your system activity. It has a threshold notification system that will alert you when your server's capabilities will be maxed out. Ten. Zabbix zabbix is an open source performance monitoring solution. You can monitor the server, web application, database , network equipment, and other performance. free collection br
IT hardware and software in the new computer room, advance early warning and automatic notification for abnormal situation of system indicators, and show the logical association between hardware and software and business, and the influence of abnormal to which business, the scope and extent of the impact.Monitoring system mainly includes: status monitoring module, Alarm management module, business topology display module, custom portal display, Admin
First, Glances website
The code is as follows
Copy Code
Tool Address: Https://github.com/nicolargo/glances
If we need to install the Glances tool on a Linux VPS server, we need to ensure that more than Python2.6, psutil2.0 version.
Second, glances monitoring tool installation
1, automatic installation
The code is as follows
Copy Code
Overview
When the system bugs need to locate the problem, knowledge, experience is the key foundation, the data is the basis, the tool is the use of knowledge processing data means. The data mentioned here include: Run log, exception stack, GC log, thread snapshot (threaddump/javacore file), heap dump Snapshot (heapdump/hprof file), etc. Using the appropriate virtual machine monitoring and analysis tools c
Guide
Linux has very powerful capabilities in network and system monitoring, and offers a range of solutions that track the performance of these systems and devices and provide trending performance analysis. When some problems occur, you can call the police. While some tools can trigger some actions in the alarm, here, organized and collected some open source tools
: file read/write status
-C: output process statistics, number of processes created per second
-R: Output Memory Page statistics
-Y: terminal device activity
-W: Number of context switches per second
-W: Output System exchange activity information
1. CPU resource monitoring
For example, sample once every 10 seconds, sample three times in a row, observe the CPU usage, and save the sample result in binary format to the file test in the current directory
at the time of creation.
4. A graphic analysis tool for continuous traffic monitoring developed based on PHP, mysql, snmp (UDP: 161), and rrdtool
Cacti Working principle:
Cacti instance application
--- Network settings
--- Host system
(1) network interface traffic (inbound and outbound bandwidth)
(2) monitor CPU load, memory, and so on
(3) Monitoring disk space
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
Learn linux system monitoring tools 1. Learn linux
Make full use of the built-in linux system monitoring tools to quickly and conveniently understand the system performance and other issues, so as to facilitate system analysis and debugging.
Learning articles: Every system administrator needs to know 30 Linux system
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
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
Inotify-tools + php script for Linux Server File monitoring and email reminder,
Requirement Description:
Because servers are infected with Trojans and are often written into sensitive html pages, leaders are often invited to drink tea by cyber police, you know. Therefore, there are two requirements: one is to find out the server's Trojan backdoor and fix code vulnerabilities, and the other is to monitor the
In addition to the integrated VISUALVM and Jconsole, the JDK itself provides performance tuning monitoring tools such as JPS, Jstack, Jmap, Jhat, and Jstat.In Java development, we sometimes encounter the following problems:OutOfMemoryError, Low memoryMemory leaksThread deadlockLock contention (lock contention)The Java process consumes too much CPU......These problems may be overlooked by many people in thei
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
times from application startup to sampling
④jstat-gcutil 15043 Statistics GC Information the ratio of occupied space to total space
S0
The first survivor (Survivor area) in the younger generation has been used as a percentage of current capacity
S1
The second survivor (Survivor area) of the young generation has been used as a percentage of current capacity
E
Eden (Eden) in the young
state can be viewed from the command line or from its own network interface.12.nethogs-monitoring the network bandwidth of each processNethogs is an open source nifty applet (similar to the top command above Linux) that maintains the network activity status of each process on your system. It also maintains a program or application for real-time network traffic bandwidth usage.13.iftop-Network Bandwidth Mon
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