Controlling Bandwidth in JMeter to simulate different networks

How to simulate network bandwidth in JMeter?

JMeter let's you simulate network bandwidth very easily.

Where to define the network bandwidth?

In jmeter.properties we can read:

{{{#!properties
# Define characters per second > 0 to emulate slow connections
#httpclient.socket.http.cps=0
#httpclient.socket.https.cps=0
}}}

How to modify network bandwith?

cps values are calculated with this formula :

• cps = (target bandwidth in kbps * 1024) / 8
  

Some examples:

Configuration summary:

1. Ensure you use HttpClient 3.1 or HttpClient 4 implementations
2. Configure bandwidth by defining the 2 properties above in <jmeter home>/bin/user.properties
   

Author:

Antonio Gomes Rodrigues