How can data caching have a negative effect on load testing results?

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  • May 18th, 2008

Negative effect will occur because if the cache files get incresed the outpu/result got from LR  wont be correct. usuallly its highly recommended to clear cache file before load testing

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  • May 24th, 2010

When a query runs for the fist time, the system fetches the data from the DB and then stores on cache for later transactions.
When the cache is turned ON, for any subsequent requests, the data will be fetched from the cache ONLY. This means that the system will not hit the DB, very minimal CPU and memory utilisation. It is OK for couple of transactions but not for all as it wouldn't mimic the live scenario.
Also note that the response time will also be less when the data will be picked up from the cache.

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