MG1 p=- 3+S+λ⑧s(3+3)-5(053+S p+ (S2-S) (1-S2)
M/G/1 ρ = λS1 1 − λ(S2 − S1 ) L = ρ + λ2 1 − λ(S2 − S1 )[σ S12 + S12 + λ{S1(σ S 2 2 + S22 ) − S 2 (σ S1 2 + S12 ) 2(1 − λ S2) ]
MG1 Little s law: buy one get three others for free! L=n See the book, eqs. (5.0)-(5.5)
M/G/1 Little' s Law :Buy one,get three others for free! L = λW L q = λWq See the book, Eqs. (5.0) - (5.5)
Two-Server“ Hypercube Queueing Model a Distinguishable servers a Different workloads(due to geography) a Can appear with or without queueing AWith--usually FCFS AWithout--usually means a backup contract service is in place
Two-Server “Hypercube” Queueing Model aDistinguishable servers aDifferent workloads (due to geography) aCan appear with or without queueing `With -- usually FCFS `Without -- usually means a backup contract service is in place