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 = 0.839967, $dem_order = 66.4717, $nusers = 272, $order_rate = 0.160033, $req_browse_read = 16.0922, $userThink = 2619.41 Convergence test value: 0.00656484 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 716 MVA Wait(): 73034 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(272) 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 2619.41 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 66.4717 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 0.839967 EAccess EOrder 0.160033 TStoreApp EBrowse EInvRd 16.0922 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 0.0330684 TWebServer EAccess 0.0338135 TImgDisk ERdImg 0.50933 TStoreApp EBrowse 0.0144152 EOrder 0.0181524 TCart EBuy 0.00519934 TInvDB EInvRd 0.15655 EInvUpd 0.112093 TCustDB ECustRd 0.00439419 ECustUpd 0.00520158 TFS EFRd 0.328289 EFWrite 0.276253 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 5502.59 TWebServer EAccess ERdImg 0.293066 EAccess EBrowse 3924.21 EAccess EOrder 3924.27 TStoreApp EBrowse EInvRd 368.668 EOrder EBuy 8.06073 TCart EBuy EInvRd 476.222 EBuy EInvUpd 476.223 TInvDB EInvRd EFRd 2.98557 EInvUpd EFRd 2.98557 0 EInvUpd EFWrite 0 1.64053 TCustDB ECustRd EFRd 1.52095 ECustUpd EFRd 1.52095 0 ECustUpd EFWrite 0 2.68537 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 52.2285 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 17962.2 TWebServer EAccess 9840.26 TImgDisk ERdImg 1 TStoreApp EBrowse 6607.33 EOrder 2153.7 TCart EBuy 2080.66 TInvDB EInvRd 41.0139 EInvUpd 22.6229 33.8827 TCustDB ECustRd 81.7784 ECustUpd 21.2674 25.3503 TFS EFRd 18.1737 EFWrite 6.05789 18.1737 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 8.25016e+008 2.55708 TWebServer EAccess 2.36691e+008 2.44438 TImgDisk ERdImg 1 1 TStoreApp EBrowse 4.85922e+007 1.11305 EOrder 1.37141e+007 2.95663 TCart EBuy 4.71271e+006 1.0886 TInvDB EInvRd 2933.38 1.74384 EInvUpd 1207.2 1342.89 0.79868 TCustDB ECustRd 9205.46 1.37647 ECustUpd 1081.16 853.567 0.890267 TFS EFRd 239.24 0.72435 EFWrite 26.5822 239.24 0.452719 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0151429 271.999 271.999 TWebServer EAccess 0.0151429 149.01 149.01 TImgDisk ERdImg 0.227136 0.227136 0.227136 TStoreApp EBrowse 0.0127191 84.0393 84.0393 EOrder 0.00242329 5.21902 5.21902 Total: 0.0151424 89.2584 89.2584 TCart EBuy 0.00242328 5.04203 5.04203 TInvDB EInvRd 0.211945 8.6927 8.6927 EInvUpd 0.00242325 0.054821 0.0821064 0.136927 Total: 0.214368 8.74752 0.0821064 8.82962 TCustDB ECustRd 0 0 0 ECustUpd 0.00242328 0.0515368 0.0614308 0.112968 Total: 0.00242328 0.0515368 0.0614308 0.112968 TFS EFRd 0.320019 5.81592 5.81592 EFWrite 0.00986119 0.059738 0.179214 0.238952 Total: 0.32988 5.87566 0.179214 6.05487 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 272 EUserBeh 39.6653 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.227136 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0302857 0.0623757 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.190787 0 EOrder 0.16108 0 Task Total: 0.351867 TCart 0 10 EBuy 0.0726984 0.110274 Processor Total: 0.424565 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.42389 0.927331 EInvUpd 0.0266558 0.463665 4.63665 Task Total: 0.450546 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0145397 0.572753 2.86376 Task Total: 0.0145397 Processor Total: 0.465085 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.960057 15.1737 EFWrite 0.0394447 5.05789 15.1737 Task Total: 0.999501