Sun’s HPC Watercooler points to an article in GridToday by Univa UD’s Rich Wellner.
[Rich] questions the merits of measuring utilization rates in cluster or grid. Instead, says Wellner, a factor like latency has far more impact on an organization’s effectiveness and core business missions.
You can find the original article here. GT also has a piece in which GT editor Derrick Harris analyzes Rich’s viewpoint and identifies different classes of users that place different values on utilization. Derrick’s piece is here.