SPEC releases power-performance benchmark for servers
The Standard Performance Evaluation Corp. (SPEC) has released SPECpower_ssj2008, the first industry-standard benchmark that measures power consumption in relation to performance for server-class computers. SPEC has designed SPECpower_ssj2008 to be used as both a benchmark to compare power and performance among different servers and as a toolset to improve server efficiency.
SPECpower_ssj2008 reports power consumption for servers at different performance levels from 100-percent to idle in 10-percent segments over a set period of time. The graduated workload recognizes the fact that processing loads and power consumption on servers vary substantially over the course of days or weeks. To compute a power-performance metric across all levels, measured transaction throughputs for each segment are added together, then divided by the sum of the average power consumed for each segment. The result is a figure of merit called overall ssj_ops/watt.
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