On Elasticity Measurement in Cloud Computing

Table 2

Comparison of CTMC model results and simulation results.

Arrival rate	Service rate	Start-up rate	Shut-off rate	Method		Difference
				CTMC model	Simulation
60	60	300	540	0.705212	0.702837	0.3%
60	200	300	540	0.445756	0.475257	0.4%
60	600	300	540	0.635151	0.637240	0.3%
200	60	300	540	0.735167	0.739055	0.5%
200	200	300	540	0.543948	0.546414	0.5%
200	600	300	540	0.235727	0.234727	0.4%
600	60	300	540	0.827098	0.828784	0.2%
600	200	300	540	0.688974	0.684784	0.6%
600	600	300	540	0.435171	0.438784	0.8%