Scalability Metric Calculator

Adding more hardware does not imply that your software can leverage the extra hardware and perform better. One of the key metrics that can quantify the way your software is scaling is the Scalability Metric.

For more details on the how to intepret the scalability metric refer to the Methodology Packs WPT041 and CAP137.

Disclaimer

Load Level	Throughput (requests /unit time)	Average Utilization	Computed Scalability Metric (w.r.t. base load)
Base load		%
L1		%
L2		%
L3		%

Note:Usually under high CPU and disk utilizations, the hardware contentions results in a disproportionate increase in system resource utilization that is not related to application workload performance or scalability problems. Similarly, it is important to keep in mind that under very low load conditions the comparative overheads due to resident software etc may become significant.