As a Java programmer, the most painful thing is to choose too wide, can read too many books, often easily confused. I would like to choose some of the technical books I have read, according to the Order of study, recommend to everyone, especially those who want to constantly improve their technical level of Java programmers. In addition, you can join 457036818 Exchange groups and share your knowledge about
Jmeter can be used for performance testing, but it cannot monitor the memory and CPU well. This article introduces two methods to monitor memory and CPU.
1. jmeterplugins plugin
Most of the time, we need to check the memory and CPU information for testing the performance to determine the System Bottleneck. jmeter does not provide good support for CPU and memory monitoring. In many cases, we can only
Configuring the JVM, the JMeter process runs inThe JMeter Maven plugin would run the JMeter process in its own JVM. You have the full control over the this JVM and can set THE-XMS AND-XMX as well as the command line arguments you require. We suggest that you set THE-XMS and-xmx to the same values for optimal performance.+---+project> [...] Build> Plugins> Plugin>
The JMeter property is uniformly defined in the Jmeter.properties file. The JMeter property is visible anywhere in the test script (global) and is typically used to define some default values that are used by JMeter. such as attribute remote_hosts defines the server address that JMeter runs in remote mode. Property can
"BeanShell Sampler-037" script looks like this:The "Debug Sampler Configuration" is shown below (for easy subsequent comparison of props output):Execute script to view execution results (Jmeter.log):The "(037 Sample line range) generates the value of the variable" script output is as follows:The output of "BeanShell postprocessor (037 Sample line Range)" is as follows:"BeanShell Sampler (after JMeter post 037)" Output is as follows:The "Debug Sampler
Objective: To test the Java program;First, the core steps1. Create a Java project;2. Add the jar file in the JMeter Lib directory to the build Path of this project;3. Create a class and implement the Javasamplerclient interface or inherit abstractjavasamplerclient, and override: Public Arguments getdefaultparameters (); Set default values for available parameters; Public void setuptest (Javasamplercontext arg0): Each thread is executed once before te
Specific steps:1. Computer Boot JMeter2.jmeter creates a new thread group in the test plan.3. Create a new HTTP proxy server on the workbench4. Configuring the HTTP proxy server5. Set IE proxy to local6, mobile WiFi settings agent connected to the PC7. Start JMeter HTTP proxy Server8, now the computer casually open a Web test whether it can catch the package (if you can bag the agent to remove IE, set up IE
1. Open JMeter, right click on Workbench, add HTTP proxy server2, set the configuration JMeter, mobile wireless network, (the target controller can also choose to add to the thread group)3. Add View results Tree4, after the start, the operation of mobile phones, JMeter will be successful automatic recording5, note that the IP address and port number settings, and
detailed JMeter remote testing (1)If the performance of the machine running the JMeter client does not meet the requirements of the test, the tester can control multiple remote JMeter servers through a single JMeter GUI client in order to stress test the server and simulate a sufficient number of concurrent users. By r
JMeter Test MongoDB Performance in two ways, one is to use JMeter directly to test MongoDB, there is a way to write Java code to test MongoDB performance.The first of these methods1. Write Java code that reads as follows:Package Com.test.mongodb;import Java.io.File; Import Java.io.FileOutputStream; Import java.io.IOException; Import Java.util.uuid;import Java.util.concurrent.atomic.AtomicLong; Import
JMeter Execution Order rules:
Configuring components
Front-facing processor
Timer
Sampling device
Post processor (unless server response is empty)
Assertion
Listener
The timer, assertion, pre/post processor is executed only when the sampler is present in the scope, and the logic controller and sampler are executed in the order in which they appear in the test tree. Other test elements are executed according to their own scope
also affect the command line-l identity for the specified log file (typically for non-GUI mode). As in Jmeter.properties, find the following line: jmeter.save.saveservice.output_format= How to save the sample information is configurable, to obtain the most comprehensive information, select the "XML" format, and in the test plan select the " Function Test Mode check box, if the check box is not selected, the default saved data contains the timestamp, data type, thread name, label, corresponding
Jmeter uses the return value of the previous interface as the request parameter of the next interface, and the return value of jmeter
It is sometimes used in jmeter. the return value of the previous interface is used as the request parameter of the next interface.
The procedure is as follows:
1. Create an http request (right-click the thread group-add Sampler
Download jmeter:http://jmeter.apache.org/download_jmeter.cgi on the Apache website1. Run Bin/jmeter.bat, add thread Group2. Add an HTTP requestAdd cookies, request headers, authorization information, etc.3. Add listener to view result informationThe basic configuration is complete and you can set the specific request parameters to test the interface.This setting reads the content from the file as a request parameterOpen Options-"Function Assistant dialog box, select Csvread, file content, split.
[From Renren network source address: http://blog.renren.com/GetEntry.do? Id = 896285182 owner = 274281790,Very touched !!]
In the past, I would like to read a book before reading, but in actual reading, I often "want to read a book" rather than "want to read a book ". This kind of thinking often makes my life very painful. When you want to finish something quickly, your mind is no longer in this matter.
This problem has plagued me for a long time in college. I don't realize that this is actuall
JMeter is an open-source performance testing tool, written in pure Java, small size, powerful, basic can meet the performance testing requirements. Another jmeter also right a series of plug-ins to enhance its functionality, plug-in address jmeter-plugins.org. Plug-ins now have 5, respectively, standard Set,extras Set,extras with Libs Set,webdriver set, Hadoop se
The JMeter configuration component can be used to initialize default values and variables for use by subsequent samplers. will be processed at the initialization stage of its scope. CSV data Set Config: Used to read data from a file and then store them in a variable, suitable for handling many variables Variable Names: variable Name list (comma delimited). JMeter2.3.4 later versions, the CSV header row is supported, and if the variable name is empty,
There are a large number of computers, technologies and other e-books to download, the speed is good, hope to help friends!
The purpose of reading books is usually two. One is to acquire knowledge, and the other is to entertain and relax. As the Internet develops, reading has gradually become a new digital media platform-ebook. In this article,We have collected 35 free English e-
Label: style blog HTTP color Io file data sp By using the Tomcat monitor function of jmeter, you can send a GET request to the Tomcat status page to obtain resource usage information and convert it to an intuitive image method, you can monitor the resource usage of the server. However, to use the Tomcat monitor function, you must install Tomcat on the server to be monitored. 1. configure $ catalina_home/CONF/tomcat-users.xml. The configuration is
Jmeter-myeclipse Compile Run issuesFollow this sticker http://phoenix0529.iteye.com/blog/1530728It is possible to configure and then compile the build.xml with Ant.But if run Newdriver error, as follows:Java.lang.Throwable:Could not access E:\Workspaces\MyEclipse 10\libAt Org.apache.jmeter.newdriver.Java.lang.Throwable:Could not access E:\Workspaces\MyEclipse 10\lib\extAt Org.apache.jmeter.newdriver.Java.lang.Throwable:Could not access E:\Workspaces\M
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