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 = 0.774252, $dem_order = 4.94194, $nusers = 197, $order_rate = 0.225748, $req_browse_read = 20.2345, $userThink = 2363.39 Convergence test value: 0.00979211 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 673 MVA Wait(): 61916 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(197) 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 2363.39 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 4.94194 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 0.774252 EAccess EOrder 0.225748 TStoreApp EBrowse EInvRd 20.2345 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 0.0110388 TWebServer EAccess 0.0172661 TImgDisk ERdImg 0.245972 TStoreApp EBrowse 0.0111269 EOrder 0.0432102 TCart EBuy 0.00171649 TInvDB EInvRd 0.174766 EInvUpd 0.127341 TCustDB ECustRd 0.00161868 ECustUpd 0.00171649 TFS EFRd 0.33274 EFWrite 0.276164 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1651.61 TWebServer EAccess ERdImg 0.233814 EAccess EBrowse 4481.65 EAccess EOrder 4480.81 TStoreApp EBrowse EInvRd 376.862 EOrder EBuy 34.6532 TCart EBuy EInvRd 484.028 EBuy EInvUpd 484.027 TInvDB EInvRd EFRd 3.46991 EInvUpd EFRd 3.46991 0 EInvUpd EFWrite 0 1.91248 TCustDB ECustRd EFRd 1.76737 ECustUpd EFRd 1.76737 0 ECustUpd EFWrite 0 2.84187 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 53.7903 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 15570.3 TWebServer EAccess 11555.2 TImgDisk ERdImg 1 TStoreApp EBrowse 8482.16 EOrder 2153.33 TCart EBuy 2113.82 TInvDB EInvRd 41.595 EInvUpd 22.9449 34.4921 TCustDB ECustRd 82.0865 ECustUpd 21.3514 25.5857 TFS EFRd 18.0042 EFWrite 6.00141 18.0042 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 7.46489e+008 3.07915 TWebServer EAccess 3.27042e+008 2.44932 TImgDisk ERdImg 1 1 TStoreApp EBrowse 7.84237e+007 1.09002 EOrder 1.41193e+007 3.04505 TCart EBuy 4.86521e+006 1.08884 TInvDB EInvRd 3001.94 1.73508 EInvUpd 1233.3 1393.55 0.796257 TCustDB ECustRd 9250.83 1.3729 ECustUpd 1083.47 869.55 0.886488 TFS EFRd 234.127 0.722276 EFWrite 26.0142 234.127 0.451423 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0126523 197 197 TWebServer EAccess 0.0126523 146.201 146.201 TImgDisk ERdImg 0.18975 0.18975 0.18975 TStoreApp EBrowse 0.0097943 83.0768 83.0768 EOrder 0.00285571 6.14929 6.14929 Total: 0.01265 89.2261 89.2261 TCart EBuy 0.00285569 6.03642 6.03642 TInvDB EInvRd 0.206761 8.60024 8.60024 EInvUpd 0.00285581 0.0655262 0.0985027 0.164029 Total: 0.209617 8.66576 0.0985027 8.76427 TCustDB ECustRd 0 0 0 ECustUpd 0.00285569 0.0609731 0.0730648 0.134038 Total: 0.00285569 0.0609731 0.0730648 0.134038 TFS EFRd 0.317294 5.71264 5.71264 EFWrite 0.0117019 0.0702277 0.210683 0.280911 Total: 0.328996 5.78287 0.210683 5.99355 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 197 EUserBeh 29.9024 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.18975 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0253047 0.0518678 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.146915 0 EOrder 0.0141128 0 Task Total: 0.161027 TCart 0 10 EBuy 0.0856707 0 Processor Total: 0.246698 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.413523 0.941464 EInvUpd 0.0314139 0.470732 4.70732 Task Total: 0.444937 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0171341 0.579822 2.89911 Task Total: 0.0171341 Processor Total: 0.462071 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.951883 15.0042 EFWrite 0.0468075 5.00142 15.0042 Task Total: 0.99869