[i:xn2rmiyv]As i said earlier i do have basic idea, but its not enough. [/i:xn2rmiyv]
No you didnt say this, see your original post.
[i:xn2rmiyv]I worked on Linux, Perl and PHP, but i think its not enough to prepare a whitepaper. [/i:xn2rmiyv]
Youre right and they are not tools.
Without getting too much into it have you thought about these:
Who is you audience?
What you are looking at is potential huge topic, are you wanting to concentrate on one single area (i.e. performance) or everything (good luck with that!)?
A search on google will turn up hundreds of existing white papers / research on open source in testing. Maybe what you are looking for has already been done?