Let me explain this by reference: when you go to the local PC superstore to buy a piece of software, on the back of the box will be a "minimum requirements specification" looking a bit like this:
- 2 GHz processor
- 1 Gb RAM
- VGA graphics adapter
- ...
But when you buy enterprise class software, there's no spec like this on the box! That's because performance of the software is directly related to the workload it's servicing: how many users, how much concurrency, how many transactions...
Performance alignment means that whatever resources you allocate to a task should be proportional to the workload it is processing. This kind of alignment means your investment is proportional to the business demand: right-sized for the job in hand.
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