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“So,” we said, “a warehouse is basically like a kitchen.” “How so,” said my colleague, looking puzzled at this latest bizarre metaphor.

We have lost hours of our life, and possibly several friends, to this question. We shudder now to even write it. What is user concurrency?

"Five seconds average response", we say. Excited faces look at us. "Is that good?" they ask.

The most frequent reason we hear to avoid performance testing is that new hardware is easy to get and cheaper than the testing. Well, that's true. Assuming the problem is the hardware.