How percentile approximation works and why it's more useful than averages
Can someone bake this down to a sentence?  I think I understand what they are saying since I have been faced with using these metrics and in having been tempted to use average response times I recognized that average is not a good baseline since it moves in relation to the outliers (which are usually the problem requests and there can be many or few).<p>How do you calculate these percentiles and use them as a trigger for alerts?