1.什么是负载测试？什么是性能测试？
2.性能测试包含了哪些测试（至少举出3种）
3.简述性能测试的步骤
4.简述使用Loadrunner的步骤
5.什么时候可以开始执行性能测试？
6.LoadRunner由哪些部件组成？
7.你使用L...... <阅读全文>
LoadRunner面试题专栏 - 最全的LoadRunner面试题, LoadRunner笔试题, LoadRunner问题
雅虎公司C#笔试题，包括问答题和选择题两部分。试试看，你能回答出多少题，可以通过雅虎的考试吗？
Question 1. (单选)
在计算机网络中,表征数据传输可靠性的指标是
1. 传输率
2. 误码率
3. 信息容量
4. 频带...... <阅读全文>
Web_reg_save_param function saves dynamic data information to a parameter.
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$$('div.d2007').each( function(e) { e.visualEffect('slide_up...... <阅读全文>
Automatic correlation from web point of view, can be set in recording options and correlation tab. Here we can enable correlation for the entire script and choose either issue online messages or...... <阅读全文>
Correlation is used to obtain data which are unique for each run of the script and which are generated by nested queries. Correlation provides the value to avoid errors arising out of duplicate ...... <阅读全文>
In Running Vuser graph correlated with the response time graph you can see that as the number of Vusers increases, the average response time of the check itinerary transaction very gradually inc...... <阅读全文>
Load Runner provides you with five different types of goals in a goal oriented scenario:
The number of concurrent Vusers
The number of hits per second
The number of transactions per second
The...... <阅读全文>
If the throughput scales upward as time progresses and the number of Vusers increase, this indicates that the bandwidth is sufficient. If the graph were to remain relatively flat as the number o...... <阅读全文>
The lr_debug_message function sends a debug message to the output log when the specified message class is set. lr_output_message – The lr_output_message function sends notifications to the...... <阅读全文>
The standard log sends a subset of functions and messages sent during script execution to a log. The subset depends on the Vuser type Extended log sends a detailed script execution messages to t...... <阅读全文>
Think time is the time that a real user waits between actions. Example: When a user receives data from a server, the user may wait several seconds to review the data before responding. This dela...... <阅读全文>
Vuser_init action contains procedures to login to a server.
Vuser_end section contains log off procedures.
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$$('div.d1989').each( functi...... <阅读全文>
Load test is planned to decide the number of users, what kind of machines we are going to use and from where they are run. It is based on 2 important documents, Task Distribution Diagram and Tra...... <阅读全文>
Overlay Graph: It overlay the content of two graphs that shares a common x-axis. Left Y-axis on the merged graph show.s the current graph.s value & Right Y-axis show the value of Y-axis of t...... <阅读全文>
By running .Database. monitor and help of .Data Resource Graph. we can find database related issues. E.g. You can specify the resource you want to measure on before running the controller and th...... <阅读全文>
Using Web resource monitors we can find the performance of web servers. Using these monitors we can analyze throughput on the web server, number of hits per second that
occurred during scenario,...... <阅读全文>
The problem could be in the system itself or in the application server or in the code written for the application.
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$$('div.d1979').each...... <阅读全文>
Performance Bottlenecks can be detected by using monitors. These monitors might be application server monitors, web server monitors, database server monitors and network monitors. They help in f...... <阅读全文>
The configuration of our systems refers to that of the client machines on which we run the Vusers. The configuration of any client machine includes its hardware settings, memory, operating syste...... <阅读全文>
The Throughput graph shows the amount of data in bytes that the Vusers received from the server in a second. When we compare this with the transaction response time, we will notice that as throu...... <阅读全文>
The lr_abort function aborts the execution of a Vuser script. It instructs the Vuser to stop executing the Actions section, execute the vuser_end section and end the execution. This function is ...... <阅读全文>
VuGen provides the facility to use multithreading. This enables more Vusers to be run per
generator. If the Vuser is run as a process, the same driver program is loaded into memory for each Vuse...... <阅读全文>
This option is used to gradually increase the amount of Vusers/load on the server. An initial value is set and a value to wait between intervals can be
specified. To set Ramp Up, go to ‘Scenario...... <阅读全文>
We set Iterations in the Run Time Settings of the VuGen. The navigation for this is Run time settings, Pacing tab, set number of iterations.
Functionality under load can be tested by running sev...... <阅读全文>
The Run Time Settings that we make are: a) Pacing – It has iteration count. b) Log - Under this we have Disable Logging Standard Log and c) Extended Think Time – In think time we hav...... <阅读全文>
