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From "Thom Hehl" <>
Subject RE: Advice
Date Thu, 05 May 2011 13:10:30 GMT
I am using a program to generate the XML packets for me in the test.

I understand that for this, I will set up 250 threads on the thread
group. Unfortunately, that's the only thing that's clear to me from what
you said.

What will I be using the User Defined Variable for? How will a
particular thread know which packets belong to it?

-----Original Message-----
From: Felix Frank [] 
Sent: Thursday, May 05, 2011 9:07 AM
To: JMeter Users List
Subject: Re: Advice

On 05/05/2011 02:58 PM, Thom Hehl wrote:
> OK, I've been through the manual and understand how to go about
> up my tests technically. The thing that I seem to be missing is how to
> set up tests meaningfully.
> I have an application that receives packet data on a regular basis and
> then allows people to log in and view reports of the data. I'd like to
> write  a jmeter test that simultaneously simulates the data coming in
> and the people logging in to review it.
> So I've created a slew of UDP packets for coming in. It is important
> that packets from the same source come in sequentially. When done I
> have 250 sources for these packets.
> I started setting up a thread group for each of the sources with one
> thread apiece, but it appears that jmeter wouldn't run more than 4 of
> them. So now what do I do to simulate this load? Should I use threads?
> How many, because the manual warns about too many.
> Then how do I set up each of my tests. I want 50 users and each user
> will own the data from 5 of the data sources. How do I set this part


sounds like a job for 250 Threads and some User Defined Variables
You can define variable values for each Thread, or define, say, 50
values, so that each value will be shared by 5 Threads.

Managing this in the GUI is bound to be painful, so you may want to
start out small and then expand the .jmx file with an editor or
scripting language.


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