Fig. 3
From: Scalability analysis comparisons of cloud-based software services
The calculation of the scalability performance metrics: a the volume scalability metric is ηI, which is the ratio between the areas A and A* – see Eq. (6); b the quality scalability metric is ηt, which is the ratio between the areas B* and B – see Eq. (9). The red lines indicate the ideal scaling behavior and the blue curves show the actual scaling behavior