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Advances, Systems and Applications

Journal of Cloud Computing Cover Image

Table 1 Memberhip functions

From: VM consolidation approach based on heuristics, fuzzy logic, and migration control

Variables Parameter
Level Function Type Parameter
RAM Low Trapezoidal a = 0 b = 0 c = 650 d = 750
Medium Trapezoidal a = 700 b = 800 c = 900 d = 1000
High Trapezoidal a = 900 b = 1100 c = 1800 d = 1800
Correlation Low Trapezoidal a = 0 b = 0 c = .5 d = .6
Medium Trapezoidal a = .5 b = .6 c = .8 d = .85
High Trapezoidal a = .8 b = .85 c = 1 d = 1
Stdev Low Trapezoidal a = 0 b = 0 c = 3 d = .3.75
Medium Trapezoidal a = 3.25 b = 4 c = 6.75 d = 7.5
High Trapezoidal a = 7.5 b = 8.5 c = 100 d = 100
VM Selection Low Trapezoidal a = 0 b = 0 c = .3 d = .35
Medium Trapezoidal a = 0.3 b = 0.35 c = .6 d = .65
High Trapezoidal a = .6 b = .65 c = .8 d = .85
Very High Trapezoidal a = .8 b = .85 c = 1 d = 1