What is deferred loading?Lazy loading is also called load-on-demand, which means loading the master information first, and then loading the information when needed.Demand:Query the order information, when necessary to query the user informationImplementation method:Write two statement, one statement is to query the order information, one is to query the user information, but query the order Information statement to use the RESULTMAP tag for results ma
Web site pressure Load test tool: The Web version has died, had to send everyone stand-alone version of the preface:Recently the boss cash turnover out a little problem, wages for a long time did not send, so temporarily idle at home, wait for the boss to get money comeback news;QQ Group, occasionally sometimes people ask, the original distributed Web site load T
Original linkThe wood of knowledge cannot load Browser "PHANTOMJS": it is not registered! Perhaps are missing some plugin? Test the installation of bugs encounteredInstallation of a half-day PHANTOMJS is not installed, back to think of a way to die, http://phantomjs.org/download.html this web site to download the first phantomjs-2.1.1-windows.zip this packageAnd then put it in the C-plate C:\USERS\ADMINISTR
Little brother to introduce the vs2005/vs2008 Load test tool. In fact, a lot of testing tools, I think Microsoft's things to do is relatively simple, but also more suitable for. NET development users. I think it's better to have tools like loadrunner. Gossip less, the following is the test process.
One machine configuration and operating system
Different mach
Everyone should have heard, Nodejs superior performance, concurrency is also very good, then we use Apache AB to the empty framework of node test, and then to some of the site test, or less certain reference meaning.The Apache AB Test tool is an analog multi-threaded concurrent request that has n multiple requests sent to the server at the same time, and also mak
Analysis Principle:Specific analysis of specific problems (this is due to different application systems, different testing purposes, different performance concerns)
• Find bottlenecks in the following order, from easy to difficult.
Server hardware bottleneck-〉 network bottleneck (for LAN, can not be considered)-〉 server operating system bottleneck (parameter configuration)-〉 middleware bottleneck (parameter configuration, database, Web server, etc.)-〉 application bottlenecks (SQL statements, dat
: 246 535 125.0 571 684 The response of all requests in the entire scene. Each request has a response time in the sceneWhere 50% of the user response time is less than 571 milliseconds80% User response time is less than 652 millisecondsMaximum response time of less than 684 millisecondsPercentage of the requests served within a certain time (MS)50% 57166% 62775% 64680% 65290% 66695% 67798% 68199% 682100% 684 (Longest request)It's just one of the test
I've been working with eclipse before, but when I installed Oracle, I opened it and there was a failed to load the jnishared library (there was also a Jvm.dll file path below), when it was forced to direct Baidu the result he explained. "The problem is that Eclipse and JDK are not the same number of bits, ask him how many bits of Eclipse and JDK, and he does not know, then how to determine the number of eclipse and JDK is different, how to solve this
Tags:clilisten process service side sqlplus netsql Customer DB instance In the Oracle 11g R2, the features of the scan (single Client Access Name) are introduced. The advantage of this feature is that between the database and the client, added a layer of virtual service layer, is called the scan IP and scan IP Listener, in the client only need to configure the scan IP TNS information, through the scan IP Listener, connected to the background cluster database. This will not affect the client
Website stress load testing tool: the Web version has died, so I had to send it to the standalone version. The test tool has died.Preface:
Recently, my boss has transferred out of funds for a week, and his salary has not been paid for a long time. So I am idle at home, waiting for the boss to get the money to make a comeback;
In the QQ group, sometimes someone may ask, why can't the original distributed w
When we create Web performance and Load Test project, we often encounter these problems:1. When you click Add Recording,The record tree on the left does not appear:Workaround:Open IE Manage add-ons:Enable Microsoft Web Test Recorder 12.0 Helper:2. Failed when trying to upload an eventWorkaround:Copy the upload files to project, and set the "Copy to Output Directo
1. Create a new two site in IIS with 8001/8002 ports respectively.2, change the configuration in the nginx.conf.3, start Nginx.bat, input 1, enter.To achieve load balancing between 8001 and 80,022 port sites.4, note: If the 80 port is occupied, the Nginx will not start.Solution:Run Netstat-aon in cmd | FINDSTR:80, find the program that occupies port 80.End these processes in the Task Manager (the last digit corresponds to the PID).You can open Nginx u
I accidentally saw an article on the 51 homepage about "creating CPU load or pressure through command line". I thought it was good to record it first and make notes for future use!It is very simple, just a command:# Cat/dev/urandom | md5sumThen through top observation, the CPU value is really high, indicating that the test is successful!Graph and truth ^_^650) This. width = 650; "src =" http://s3.51cto.com/
://example.comIf you need to run locust distributed under multiple processes, we can start a main process with "-master":Locust-f. /locust_files/my_locust_file.py--master--host=http://example.comYou can then start any number of slave processes:Locust-f. /locust_files/my_locust_file.py--slave--host=http://example.comIf we want to run locust on multiple machines, we can also define the primary server to which it belongs while starting from the server (if you are running locust on only one machine,
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