100 BUs Running

Applying eValid to AJAX applications that require advanced DOM-based methods.

100 BUs Running

Postby amam » Tue May 04, 2010 2:33 pm

That was a great webinar last week, on Advanced AJAX Testing. That technology is really slick.

My question is, how realistic is it to expect 100's of eValid instances -- you call them Browser Users -- to behave normally on one PC. If you have 100 BUs running each one gets only about 1% of the CPU...right?
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Re: 100 BUs Running

Postby eValid » Tue May 11, 2010 10:31 am

amam wrote:That was a great webinar last week, on Advanced AJAX Testing. That technology is really slick.

My question is, how realistic is it to expect 100's of eValid instances -- you call them Browser Users -- to behave normally on one PC. If you have 100 BUs running each one gets only about 1% of the CPU...right?

We believe the results are VERY realistic. We have lots of case studies that demonstrate this.

But it does depend on the total number of BU's you're running and on how complicated the script is that they are running. If there is a LOT of JavaScript and the wait times (think times) are very short that's a much bigger load on the CPU.

For "worst case" all-AJAX scripts that have a lot of synchronization steps there also is the issue that if you set the synchronization interval too small (the maximum rate is 100 Hz) and you have many eValid instances all checking the DOM in their respective workspaces at the same time then we see that that can take a big chunk of CPU resource. The solution is to use a more liesurly -- but still perfectly realistic -- retry rate of 10Hz or 5 Hz or even 1 Hz...

Hope this helps...

The eValid Team
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