Where Does The Energy Go ?

These are the slides for a talk at the 2010 Red Hat Summit. It provides some understanding about the energy use of computer systems. To many people it is not really clear how large the issue of energy consumption is and where the energy really goes. The talk contains recommendations and also shows ways to discover reasons for energy waste. Ulrich Drepper. - http://www.akkadia.org/drepper/summit2010-energy.pdf