How can you keep this from happening? A better test plan is the place to start.
- Review the types of activities that the users will be performing. We call these transactions.
- Review the location and amount of users. Take into consideration network speeds.
- Review the amount transactions that will be performed.
Many IT performance testers simply look at user count and business transactions. Failing to understand the network conditions the volume of transactions will produce an inadequate simulation.
The better the simulation - the more valuable the predicted operation of the system when it goes live.