Re: Increse user load

[Kevin Hammond <kh...@home.com>]

Hi Henrik,

I would like to incorporate your changes into JMeter.  Send an email with
the attachments to jmeter-dev@jakarta.apache.org.

Thanks,
Kevin Hammond

----- Original Message -----
From: "Henrik Ridder" <he...@partitur.se>
To: <jm...@jakarta.apache.org>
Sent: Wednesday, October 10, 2001 11:36 AM
Subject: Re: Increse user load


> Hi,
>
> After my last question about increse user load I sat down and made some
> changes in a couple of files. I have now
> (I think) got it to work so that you can increase the user load with the
> number of thread in a threadgroup.
>
> It's not pretty and I have only tested it on web testing and not FTP or
> JDBC. But I can add a lot of users to the authfile and then select how
> many thread I want to run and the same a mount of users with different
> userid/password will be used.
>
> I don't know where to send the patch so the people that knows more about
> JMeter can check it out and see if it is something to use.
>
> Get back to me for more info or questions.
>
> Thanks
>
> /Henrik
>
> Paul Devine wrote:
>
> >
> >
> > Can't you setup multiple (different) thread groups to simulate
> > multiple (different) users?  For example a ThreadGroup "UserA" which
> > may run 20 threads representing "type A" users, a concurrently a
> > ThreadGroup "UserB" which may run 50 threads representing "type B"
> > users, and so on.
> >
> > - Paul
> >  >From: Henrik Ridder
> > >To:
> > >Subject: Re: Increse user load
> > >Date: Thu, 4 Oct 2001 23:22:03 +0200 (CEST)
> > >
> > >
> > >
> > >
> > >
> > >On Thu, 4 Oct 2001, kevin hammond wrote:
> > >
> > > > As far as I know, JMeter does not really simulate
> > > > multiple users. Instead, it simulates multiple
> > > > instances (threads) of a single "user". I know it
> > > > sounds a little confusing, but let me describe it
> > > > better with a concrete example. [If any of this is
> > > > incorrect, please correct me. We really need to
> > > > clearly describe this in the user's guide.]
> > > >
> > >
> > >That's what I thought to. But thanks for clearing that up. Are there
> > >any plans for that in the future?
> > >
> > > > The HTTP Authorization table can contain many entries.
> > > > However, JMeter does not randomly select a particular
> > > > user to login as. Instead, JMeter looks at the Base
> > > > URL you provide and the URL that you are requesting
> > > > and. If there is a match, it will send a single (the
> > > > first?) match that it finds. So, you could have five
> > > > users with the same Base URL (for example, "/login"),
> > > > but only one of these users will be chosen and it will
> > > > be the same user every time.
> > > >
> > > > I can investigate it further. Henrik, if you could
> > > > provide us with an example of why you would like
> > > > multiple users, then that would help us.
> > > >
> > >
> > >Well It's just as you explained (see bellow). We have a web-base
> > >application (a e-learning application) that we want to investigate
> > >how many user you can have at the same time to find the bottle-necks.
> >
> > >But to make it real we want to use different user and
> > >not the same over and over again. But for now it's ok.
> > >
> > >I can use the same user or I can add new threads.
> > >
> > > > I can think of an example of where this could be a
> > > > problem. Let's say that you have a system and you
> > > > want to simulate 100 users. When you run JMeter, you
> > > > will get 100 logins for the same user ID (defined in
> > > > the Authorization table). The application may not
> > > > allow a user to be logged in multiple times.
> > > >
> > > > I think we have a similar issue with cookies.
> > > >
> > > > Comments, questions?
> > > >
> > > > Thanks,
> > > > Kevin Hammond
> > > >
> > >
> > >Thanks for the quick response
> > >
> > >Henrik
> > >
> > > > --- Henrik Ridder wrote:
> > > > > Hi
> > > > >
> > > > > I woundering how you increse the user load. I have a
> > > > > auth-file with a
> > > > > couple of users but it seems that
> > > > > jmeter is only using the first one in the file.
> > > > >
> > > > > Mybe I'am doing something wrong.
> > > > > I have the lastest CVS version of jmeter compiled
> > > > > with jdk1.2.2 Freebsd
> > > > >
> > > > > Thanks
> > > > >
> > > > > Henrik
> > > > >
> > > > >
> > > > >
> > > >
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