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 = 0.940581, $dem_order = 32.3659, $nusers = 287, $order_rate = 0.0594188, $req_browse_read = 21.4815, $userThink = 961.107 Convergence test value: 0.00565526 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 594 MVA Wait(): 57298 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(287) 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 961.107 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 32.3659 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 0.940581 EAccess EOrder 0.0594188 TStoreApp EBrowse EInvRd 21.4815 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 0.102232 TWebServer EAccess 0.0406818 TImgDisk ERdImg 0.356684 TStoreApp EBrowse 0.013675 EOrder 0.0314214 TCart EBuy 0.00447193 TInvDB EInvRd 0.159834 EInvUpd 0.114794 TCustDB ECustRd 0.00386285 ECustUpd 0.00447229 TFS EFRd 0.329172 EFWrite 0.276355 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 11005.3 TWebServer EAccess ERdImg 0.207586 EAccess EBrowse 5213.27 EAccess EOrder 5213.13 TStoreApp EBrowse EInvRd 339.081 EOrder EBuy 0 TCart EBuy EInvRd 447.332 EBuy EInvUpd 447.332 TInvDB EInvRd EFRd 0.899391 EInvUpd EFRd 0.899391 0 EInvUpd EFWrite 0 0.487932 TCustDB ECustRd EFRd 0.464374 ECustUpd EFRd 0.464374 0 ECustUpd EFWrite 0 2.02181 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 46.7482 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 24963.6 TWebServer EAccess 12996.9 TImgDisk ERdImg 1 TStoreApp EBrowse 8128.29 EOrder 1988.37 TCart EBuy 1956.46 TInvDB EInvRd 38.6153 EInvUpd 21.2933 31.3861 TCustDB ECustRd 80.6855 ECustUpd 20.9647 24.3983 TFS EFRd 18.957 EFWrite 6.319 18.957 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 1.74381e+009 2.79824 TWebServer EAccess 4.23455e+008 2.50687 TImgDisk ERdImg 1 1 TStoreApp EBrowse 7.16607e+007 1.08463 EOrder 1.19459e+007 3.0215 TCart EBuy 4.1644e+006 1.08795 TInvDB EInvRd 2675.57 1.79431 EInvUpd 1111.68 1149.78 0.814907 TCustDB ECustRd 9074.27 1.39387 ECustUpd 1080.01 792.118 0.90977 TFS EFRd 263.626 0.733582 EFWrite 29.2918 263.626 0.458489 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0114969 287.004 287.004 TWebServer EAccess 0.0114969 149.424 149.424 TImgDisk ERdImg 0.17245 0.17245 0.17245 TStoreApp EBrowse 0.0108135 87.8954 87.8954 EOrder 0.000683116 1.35829 1.35829 Total: 0.0114966 89.2537 89.2537 TCart EBuy 0.000683116 1.33649 1.33649 TInvDB EInvRd 0.234342 9.04919 9.04919 EInvUpd 0.000683119 0.0145458 0.0214404 0.0359862 Total: 0.235026 9.06374 0.0214404 9.08518 TCustDB ECustRd 0 0 0 ECustUpd 0.000683116 0.0143213 0.0166668 0.0309882 Total: 0.000683116 0.0143213 0.0166668 0.0309882 TFS EFRd 0.330729 6.26963 6.26963 EFWrite 0.00270059 0.017065 0.051195 0.06826 Total: 0.33343 6.2867 0.051195 6.33789 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 287 EUserBeh 11.0498 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.17245 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0229938 0.0469575 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.162203 0 EOrder 0.0221097 0 Task Total: 0.184312 TCart 0 10 EBuy 0.0204935 0 Processor Total: 0.204806 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.468685 0.873751 EInvUpd 0.00751431 0.436876 4.36876 Task Total: 0.476199 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00409869 0.543332 2.71666 Task Total: 0.00409869 Processor Total: 0.480298 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.992188 15.957 EFWrite 0.0108023 5.319 15.957 Task Total: 1.00299