Re: WebLoad HTTP performance numbers

[Robert I. <cor...@gm...>]

On 7/10/07, Vlad W. <wvl...@gm...> wrote:
>>http://www.sqaforums.com/showflat.php?Cat=0&Number=381616&an=0&page=0#Post381616
> > >>
> > >> People found, that performance of Webload is below 2000 virtual clients
> > >> and other numbers being also not so impressive (we have reached 60 000
> > >> and are limited mainly by the memory of the available HW).
> > >>
> > >> We are talking, that 30-35 K for each virtual client is too much,
> whereas
> > >> WebLoad is taking an order more.
> >
> >
> > > what about loadrunner (former mercury, now hp) ?
> >
> > Please, address always to the list:
> > cur...@li....
> >
> > For example, I do not know, but Vlad seems to be in position to
> > comment about Mercury LoadRunner numbers.

> It was long time ago and I don't remember the numbers...

Y are kidding ...
>
> Roughly, LoadRunner performace depends of the choosed protocol and virtual
> client complexity.
> Since LR is positioned as business process oriented tool, it is usually used
> running "GUI level" protocol which builds DOM and runs javascripts. Resulted
> performance is relativelylow (hundreds concurrent virtual users for single
> machine) but virtual user script is quite simple and easy to maintanace.
>
> HTTP level protocol provides thousands concurrent virtual users on single
> load generator machine, but business process implementation become be very
> complicated task, providing good job for LR experts.
>
> So, LR is definitely not the best stress testing tool. However, for business
> process oriented load testing it is the best that I know. At the same time,
> if performance is the issue, LR can use multiple load generator machines.
> Usually, users are limited rather by the license than by performance issues.

Thank you, Vlad.

To conclude, LoadRunner is also not in business of performance and stress
load testing, but rather in business process testing.

On the high-end we will be competing with IXIA IxLoad and Spirent Avalanche,
and by adding more context analysis features will fill the gap between
the Big-HW tools and business process testing (WebLoad, LoadRunner, OpenSTA),


Apache JMeter is quite another story.
JMeter is a really great open-source community project. We may
co-operate with them
by e.g. using the same Regex definitions, using the same proxy for fetching
user behavior for our batch files, etc and where is possible, assist to them.

> Thanks,
> Vlad.


-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
...........................................................
http://curl-loader.sourceforge.net
A web testing and traffic generation tool.