Jmeter（四十五）Logic Controllers 之 Throughput Controller（控制业务比例）

目录

  一、官方文档
  二、实践

不管前面是地雷阵还是万丈深渊，我都将勇往直前，义无反顾，鞠躬尽瘁，死而后已。

　　　　　　　　　　　　　　　　　　　　　　　　--朱总理

一、官方文档

19.2.7 Throughput Controller

The Throughput Controller allows the user to control how often it is executed. There are two modes:

• percent execution
• total executions

Percent executions

causes the controller to execute a certain percentage of the iterations through the test plan.

Total executions

causes the controller to stop executing after a certain number of executions have occurred.

Like the Once Only Controller, this setting is reset when a parent Loop Controller restarts.

 

This controller is badly named, as it does not control throughput. Please refer to the Constant Throughput Timer for an element that can be used to adjust the throughput.

Control Panel

 

The Throughput Controller can yield very complex behavior when combined with other controllers - in particular with interleave or random controllers as parents (also very useful).

Parameters

Attribute	Description	Required
Name	Descriptive name for this controller that is shown in the tree.	No
Execution Style	Whether the controller will run in percent executions or total executions mode.	Yes
Throughput	A number. For percent execution mode, a number from 0-100 that indicates the percentage of times the controller will execute. "50" means the controller will execute during half the iterations through the test plan. For total execution mode, the number indicates the total number of times the controller will execute.	Yes
Per User	If checked, per user will cause the controller to calculate whether it should execute on a per user (per thread) basis. If unchecked, then the calculation will be global for all users. For example, if using total execution mode, and uncheck "per user", then the number given for throughput will be the total number of executions made. If "per user" is checked, then the total number of executions would be the number of users times the number given for throughput.

The Throughput Controller allows the user to control how often it is executed. There are two modes

第一段就说的很清楚，控制执行频率。

 

 

·Total Executions 

  执行一定数量停止

·Percent Executions

  按照百分比执行

和仅一次控制器一样，当父循环控制器重新启动时，此设置将重置

·Per User

如果选中，则每个用户将导致控制器计算是否应按每个线程执行

如果未选中，则计算是所有线程的全局计算

例如：选择Total Executions，取消选择Per User，则吞吐量给定的数字是执行的总数；选择Per User，执行的总数是线程数*吞吐量的给定数

二、实践

吞吐量控制器通常在组合业务场景中，例如：容量性能场景、稳定性能场景中非常实用。

线程组配置：5s内启动100线程，循环1次

Throughput Controller_success 选择百分比控制方式 20%

Throughput Controller_debug   选择百分比控制方式 30%

Throughput Controller_error   选择百分比控制方式 50%

 

 聚合报告展示：

 Response Times Over Time 展示：

 Transactions per Second展示：

 从聚合报告展示中便可看出其分配比例。

分别将吞吐量控制器修改为Total Executions

线程组循环数改为2，其余不变

Throughput Controller_success 100

Throughput Controller_debug　 50

Throughput Controller_error　 50

选择Per User

 Response Times Over Time

作者：紫陌花间客
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