[R] Simulating web requests

[Mohan Radhakrishnan]

Homework ? You mean the question is at a high level.

I use R. It is just the simulation part that I am investigating. Several
papers on Capacity Planning that I am working on are useful for
analyzing log traffic using R for GOF tests etc. But I am not able to
find many papers on using R or r-java to generate traffic that simulates
distributions. SciPY could be useful here but it looks like interfacing
R and Java can help.

Maybe I am on the wrong track here but the only other option seems to be
expensive simulators. 

Mohan




-----Original Message-----
From: Rui Barradas [mailto:ruipbarradas at sapo.pt] 
Sent: Wednesday, June 27, 2012 4:11 PM
To: Mohan Radhakrishnan
Cc: r-help at r-project.org
Subject: Re: [R] Simulating web requests

Hello,

Homework?
There's a no homework rule but see inline.

Em 27-06-2012 10:20, Mohan Radhakrishnan escreveu:
> Hi,
>
>           I am looking for some assistance with these requirements.
We
> are trying to simulate web requests to hit a web applications. Let's
> assume I have a url to hit that requires a username and password.
>
>
>
> 1.	These web requests should have exponential inter arrival times.

Poisson process. See any introductory text.
And see the help page for ?rexp

> 2.	Generate self-similar traffic. I am not very sure about the
> properties of this traffic. Is Variance Time plot used for analyzing
if
> the data received from this simulation is self-similar ?

See the argument 'rate' in the help page above. Set it to a single
value.

>
>
>
> How does R help in creating a program that can generate this traffic ?
>
>

Simply by making of this a straightforward to program an assignment.

Hope this helps,

Rui Barradas
>
>
>
> Thanks,
>
> Mohan
>
>
>
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