Software testing skills, JMeter stress testing tutorial, transaction controller of logic controller (25)

One 、 Preface

TPS Is the number of transactions processed per second , So what is a business ？

A transaction is a user-defined identifier , It is the time taken by one or more operations to complete a business , Transaction time reflects the response time of an operation process

Two 、 Transaction scenarios

We are not unfamiliar with the e-commerce scene , The user logs in first - Browse products - Add to cart - Open the shopping cart list - Generate order to be paid - Pay to complete - Order generation

From user login to generating a valid order is a transaction , How to test that the system can process several orders per second , This is what is usually said TPS

In the real scene , Login will be done in advance , That is to say, pre operation

3、 ... and 、 Transaction controller

Thread group add - Logic controller - Transaction controller
The transaction controller interface has 2 Option buttons

Generate Parent Sample： Generate samples as parents of other samples

Whether to include timers in the generated samples , Preprocessing and postprocessing delay ： The default value is false

We usually check this 2 An option , Business time counts as thinking time

Four 、 Add operation steps

Add... Under transaction HTTP request , Add them one by one according to the operation steps
Generate orders to be paid, add a fixed timer here , That's the user's thinking time , The delay of the fixed timer will not be counted into the single sampler Response time of , But the accounting time into the transaction controller .

View structure tree , The total transaction time is 5221 millisecond , It's about thinking time
Response time for a single request , This delay time will not be included

5、 ... and 、 View aggregation reports

View aggregation reports , The statistics are the results of the whole transaction

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