Welcome Message

During my long career I've always felt attracted to computer system performance themes: bandwidth, throughput, response time, sizing, bottlenecks, usage, capacity, saturation degree, and so on. Unfortunately, I've not always seen clear, understandable and knowledgeable explanations on these subjects. With the arrival of the virtualization paradigm even more complexity is introduced: terms that represented constant values, like the machine capacity, gets blurred. What can be said about a (virtual) machine capacity if it is no longer a fixed value and may change from this hour to the next? With this blog and related documents, I'd like to fulfill an educational purpose: illuminate -with a very dim light, I agree- any other's way into this huge field, by documenting and commenting on subjects I'd liked to know when I was a beginner. And still I am! Jorge L. Navarro