Generated by: lqns, version 6.0 Copyright the Real-Time and Distributed Systems Group, Department of Systems and Computer Engineering Carleton University, Ottawa, Ontario, Canada. K1S 5B6 Invoked as: lqns ecomm2011.xlqn Input: ecomm2011.xlqn Comment: ... Variables: $browse_rate = 0.941816, $dem_order = 18.9111, $nusers = 269, $order_rate = 0.0581836, $req_browse_read = 17.2997, $userThink = 1200.12 Convergence test value: 0.0045894 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 647 MVA Wait(): 60491 Processor identifiers and scheduling algorithms: Processor Name Type Copies Scheduling PUsers Inf 1 DELAY PImgDisk Uni 1 FCFS PWebServer Uni 1 PS PStore Mult(3) 1 PS PDBs Uni 1 PS PFileServer Uni 1 PS Task information: Task Name Type Copies Processor Name Pri Entry List TUsers Ref(269) 1 PUsers 0 EUserBeh TWebServer Mult(150) 1 PWebServer 0 EAccess TImgDisk Uni 1 PImgDisk 0 ERdImg TStoreApp Mult(90) 1 PStore 0 EBrowse, EOrder TCart Mult(10) 1 PStore 0 EBuy TInvDB Mult(7) 1 PDBs 0 EInvRd, EInvUpd TCustDB Uni 1 PDBs 0 ECustRd, ECustUpd TFS Mult(10) 1 PFileServer 0 EFRd, EFWrite Entry execution demands: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 1200.12 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 18.9111 TCart EBuy 30 TInvDB EInvRd 2 EInvUpd 1 10 TCustDB ECustRd 3 ECustUpd 1 5 TFS EFRd 3 EFWrite 1 3 Mean number of rendezvous from entry to entry: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1 TWebServer EAccess ERdImg 15 EAccess EBrowse 0.941816 EAccess EOrder 0.0581836 TStoreApp EBrowse EInvRd 17.2997 EOrder EBuy 1 TCart EBuy EInvRd 3 EBuy EInvUpd 1 TInvDB EInvRd EFRd 1.8 EInvUpd EFRd 1 0 EInvUpd EFWrite 0 2.5 TCustDB ECustRd EFRd 4 ECustUpd EFRd 1 0 ECustUpd EFWrite 0 2 Mean number of non-blocking sends from entry to entry: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 1 Phase type flags: All phases are stochastic. Squared coefficient of variation of execution segments: All executable segments are exponential. Open arrival rates per entry: All open arrival rates are 0. Type 1 throughput bounds: Task Name Entry Name Throughput TUsers EUserBeh 0.0642494 TWebServer EAccess 0.0512168 TImgDisk ERdImg 0.740766 TStoreApp EBrowse 0.0128969 EOrder 0.0212813 TCart EBuy 0.00487404 TInvDB EInvRd 0.158089 EInvUpd 0.113371 TCustDB ECustRd 0.0041581 ECustUpd 0.00487292 TFS EFRd 0.328724 EFWrite 0.276306 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 7284.34 TWebServer EAccess ERdImg 0.267452 EAccess EBrowse 4228.22 EAccess EOrder 4228.29 TStoreApp EBrowse EInvRd 341.297 EOrder EBuy 0 TCart EBuy EInvRd 449.558 EBuy EInvUpd 449.558 TInvDB EInvRd EFRd 1.07491 EInvUpd EFRd 1.07491 0 EInvUpd EFWrite 0 0.583764 TCustDB ECustRd EFRd 0.55388 ECustUpd EFRd 0.55388 0 ECustUpd EFWrite 0 2.07762 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 47.1457 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 19056.2 TWebServer EAccess 10571.8 TImgDisk ERdImg 1 TStoreApp EBrowse 6590.5 EOrder 1984.64 TCart EBuy 1966.06 TInvDB EInvRd 38.8106 EInvUpd 21.4016 31.5883 TCustDB ECustRd 80.7666 ECustUpd 20.9874 24.4761 TFS EFRd 18.8878 EFWrite 6.29592 18.8878 Service time variance (per phase) and squared coefficient of variation (over all phases): Task Name Entry Name Phase 1 Phase 2 coeff of var **2 TUsers EUserBeh 1.01528e+009 2.79582 TWebServer EAccess 2.80217e+008 2.50724 TImgDisk ERdImg 1 1 TStoreApp EBrowse 4.7996e+007 1.10502 EOrder 1.20097e+007 3.04907 TCart EBuy 4.20557e+006 1.08801 TInvDB EInvRd 2694.97 1.78917 EInvUpd 1118.67 1164.54 0.81313 TCustDB ECustRd 9082.07 1.39226 ECustUpd 1079.63 796.942 0.907903 TFS EFRd 261.421 0.73279 EFWrite 29.0468 261.421 0.457994 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0141161 268.999 268.999 TWebServer EAccess 0.0141161 149.233 149.233 TImgDisk ERdImg 0.211743 0.211743 0.211743 TStoreApp EBrowse 0.0132949 87.6199 87.6199 EOrder 0.000821332 1.63005 1.63005 Total: 0.0141162 89.2499 89.2499 TCart EBuy 0.000821332 1.61479 1.61479 TInvDB EInvRd 0.232459 9.02188 9.02188 EInvUpd 0.000821329 0.0175777 0.0259444 0.0435221 Total: 0.23328 9.03945 0.0259444 9.0654 TCustDB ECustRd 0 0 0 ECustUpd 0.000821332 0.0172377 0.020103 0.0373406 Total: 0.000821332 0.0172377 0.020103 0.0373406 TFS EFRd 0.329894 6.23095 6.23095 EFWrite 0.00325472 0.0204914 0.0614743 0.0819658 Total: 0.333148 6.25145 0.0614743 6.31292 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 269 EUserBeh 16.9409 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.211743 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0282322 0.0579646 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.199423 0 EOrder 0.0155323 0 Task Total: 0.214956 TCart 0 10 EBuy 0.0246399 0 Processor Total: 0.239595 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.464918 0.877818 EInvUpd 0.00903462 0.438909 4.38909 Task Total: 0.473952 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00492799 0.545802 2.72901 Task Total: 0.00492799 Processor Total: 0.47888 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.989681 15.8878 EFWrite 0.0130189 5.29592 15.8878 Task Total: 1.0027