Choosing a performance-management or capacity-planning tool largely depends on whether you think your bottlenecks are primarily caused by hardware, applications, or databases.
Written by John Ghrist
Let's face it; we're spoiled. If you look at computing strictly from the user point of view, we're all ready to call "slow" any application or system that can't keep up with human decision-making speed. If the computer isn't ready to take the next input on which we've already decided or doesn't provide the information we need the nanosecond we're ready to read it, we notice and we're unhappy.