It is possible that it is valid.. Till you reach the limits of your server ,
the throughput will increase, then flatten(saturation point) , then fall
(buckle point)
see for e.g.
http://books.google.com/books?id=HTX8DyD0WzkC&pg=PA12&lpg=PA12&dq=throughput+curve&source=bl&ots=7qYRIZiPX9&sig=7UoxT-8gpbmqWwwUcu0aROe_QWA&hl=en&ei=1X6mSqLyHpDK_gbMgvC-CQ&sa=X&oi=book_result&ct=result&resnum=5#v=onepage&q=throughput%20curve&f=false

However its just as possible , especially if your tests dont have
assertions, that the system errors and returns quickly, your test doesnt
check for errors and you keep getting good results

regards
deepak



On Mon, Dec 28, 2009 at 12:53 PM, Maria Alejandra Trozzi <[email protected]
> wrote:

> Hi !
> I'm getting better throughput with more concurrent users (same test run
> with
> 20, 50 and 100 concurrent users)
> Can you tell me if it is a valid output or if it there could be some bad
> results.... ??
>
> Thanks !
>

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