Shulou(Shulou.com)06/03 Report--

1. Vuser Virtual user

Virtual user, a virtual user simulating real business logic steps, and the operation steps simulated by the virtual user are recorded in the virtual user script. Vuser scripts are used to describe the actions that Vuser performs in the scene.

2. Transaction

A transaction is a measure of how long it takes to execute one or more lines of code in a script. (Virtual user runtime calculations for scripts)

3. TPS transactions per second

(Transaction Per Second) The number of transactions or transactions that the system can process per second.

4. PV Page View

Each request to the application server generated by a user visiting a page through a browser is recorded as a PV.

5. Peak PV Page View

PV peak refers to the highest peak PV number reached in a day.

6. Concurrency

Concurrency in a narrow sense-all users do the same operation at the same time, the purpose is to test the database and program to handle concurrent operations, emphasizing that the request operation to the system is exactly the same, and it is mostly applicable to performance testing, load testing, stress testing, and stability testing scenarios.

Generalized concurrency-multiple users make requests or perform operations on the system, but these requests or operations can be different, emphasizing that the request operations on the system are not limited, and are mostly applicable to mixed scenarios and stability test scenarios.

7. Scenario Scenarios

In order to simulate the business processing process of real users during performance testing, a set of actions based on transactions, scripts, virtual users, operation settings, operation plans, monitoring, analysis, etc. built in Loadrunner is called performance testing scenario.

Scenarios include scripts to be executed, script groups, concurrent users, load generators, test targets, configuration conditions for test execution, and so on.

8. Response Time Response Time

Response time refers to the time elapsed from the time when the client sends a request to the time when the client receives the response result returned from the server. Response time consists of three parts: request sending time, network transmission time and server processing time.

9. Think Time Think Time

Simulate the pause time between actual operations by regular users.

In the test script, think time is reflected as the time between two request statements in the script.

10. CPU resources

CPU resource refers to the CPU resource utilization rate of the application service system during the running time period of the performance test scenario.

11. Load load

Average system load, defined as the average number of processes in the running queue during a given time interval.

A process is in the run queue if it meets the following conditions:

1) It is not waiting for the result of an I/O operation

2) it does not actively enter the wait state (i.e. it does not call 'wait')

3) Not stopped (e.g. waiting for termination)

12. Std. Deviation standard deviation

The standard deviation is obtained according to the concept of mathematical statistics. The smaller the standard deviation, the smaller the fluctuation and the more stable the system. Conversely, the larger the standard deviation, the greater the fluctuation and the more unstable the system. Including response time standard deviation and TPS standard deviation.

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