acm - an acm publication

Commentaries

2009
  • Virtualizing the Datacenter Without Compromising Server Performance
    Virtualization has become a hot topic. Cloud computing is the latest and most prominent application of this time-honored idea, which is almost as old as the computing field itself. The term "cloud" seems to have originated with someone's drawing of the Internet as a puffy cloud hiding many servers and connections. A user can receive a service from the cloud without ever knowing which machine (or machines) rendered the service, where it was located, or how many redundant copies of its data there are. One of the big concerns about the cloud is that it may assign many computational processes to one machine, thereby making that machine a bottleneck and giving poor response time. Faouzi Kamoun addresses this concern head on, and assures us that in most cases the virtualization used in the cloud and elsewhere improves performance. He also addresses a misconception made prominent in a Dilbert cartoon, when the boss said he wanted to virtualize the servers to save electricity.
  • How to Generate Reader Interest in What You Write
    Who has not discovered to their dismay that no one wants to read their most carefully crafted, meritorious, compelling, and passionate writings? Think of all the proposals you have written ...
  • Mind Hygiene for All: A Concept Map
    Maintaining mental sharpness and clarity is important to most everyone, and doing so is valuable for maintaining our professional edge. But we are under assault from many directions with challenges ...
  • How to Rapidly Improve Speaking Skills
    Even as written communication is important, spoken communication has been assuming an increasing role. We are called on to speak in such media as videos, teleconferences, and podcasts. ...
  • The Fallacy of Premature Optimization
    Moore's Law makes it seem as if resource limitations are always a minor consideration. If there will be twice as much memory for the same price in 18 months, why ...