Two Scripts Running in Parallel

Use and application of the eValid server loading (LoadTest) capability. And in the cloud computing context for monitoring and loading.

Two Scripts Running in Parallel

Postby lv2010 » Mon Dec 20, 2010 2:30 pm

Can two scripts running in parallel access the same pages without interference?
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Re: Two Scripts Running in Parallel

Postby eValid » Wed Dec 22, 2010 9:02 am

lv2010 wrote:Can two scripts running in parallel access the same pages without interference?

Yes, two, or more, or even 100's or 1,000's of eValid instances can all run in parallel. The is the feature of eValid that allows it to be used to drive a server with large numbers of users.

There is, however, a subtle fact that goes along with this. The cache that the browser (or browsers) use is the same. That's a Windows limitation. What this means in practice is that browser #1 will read a page, and render it and then browser #2 comes along and might read that same page from the cache rather than direct from the server.

There is an eValid setting that tells eValid to "never use cache" at test playback time...this will force every parallel instance of eValid to use freshly downloaded pages every time. Then there is never any doubt about which page eValid is currently rendering...it is always the most recent one.

The eValid Team
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