You could use ConstantThroughputTimer
.
Quote from JMeter help files below:
18.6.4 Constant Throughput Timer
This timer introduces variable pauses, calculated to keep the total throughput (in terms of samples per minute) as close as possible to a give figure. Of course the throughput will be lower if the server is not capable of handling it, or if other timers or time-consuming test elements prevent it.
N.B. although the Timer is called the Constant Throughput timer, the throughput value does not need to be constant. It can be defined in terms of a variable or function call, and the value can be changed during a test.
For example I've used it to generate 40 requests per second:
<ConstantThroughputTimer guiclass="TestBeanGUI" testclass="ConstantThroughputTimer" testname="Constant Throughput Timer" enabled="true">
<stringProp name="calcMode">all active threads in current thread group</stringProp>
<doubleProp>
<name>throughput</name>
<value>2400.0</value>
<savedValue>0.0</savedValue>
</doubleProp>
</ConstantThroughputTimer>
And thats a summary:
Created the tree successfully using performance/search-performance.jmx
Starting the test @ Tue Mar 15 16:28:39 CET 2011 (1300202919244)
Waiting for possible shutdown message on port 4445
Generate Summary Results + 3247 in 80,3s = 40,4/s Avg: 18 Min: 0 Max: 1328 Err: 108 (3,33%)
Generate Summary Results + 7199 in 180,0s = 40,0/s Avg: 15 Min: 1 Max: 2071 Err: 378 (5,25%)
Generate Summary Results = 10446 in 260,3s = 40,1/s Avg: 16 Min: 0 Max: 2071 Err: 486 (4,65%)
Generate Summary Results + 7200 in 180,0s = 40,0/s Avg: 14 Min: 0 Max: 152 Err: 399 (5,54%)
Generate Summary Results = 17646 in 440,4s = 40,1/s Avg: 15 Min: 0 Max: 2071 Err: 885 (5,02%)
Generate Summary Results + 7199 in 180,0s = 40,0/s Avg: 14 Min: 0 Max: 1797 Err: 436 (6,06%)
Generate Summary Results = 24845 in 620,4s = 40,0/s Avg: 15 Min: 0 Max: 2071 Err: 1321 (5,32%)
But I run this test inside my network.