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 = 0.861674, $dem_order = 60.413, $nusers = 152, $order_rate = 0.138326, $req_browse_read = 13.456, $userThink = 924.481 Convergence test value: 0.00927229 Number of iterations: 10 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 60 MVA Step(): 775 MVA Wait(): 88996 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(152) 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 924.481 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 60.413 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 0.861674 EAccess EOrder 0.138326 TStoreApp EBrowse EInvRd 13.456 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 0.104838 TWebServer EAccess 0.0672969 TImgDisk ERdImg 0.235181 TStoreApp EBrowse 0.0384206 EOrder 0.0452145 TCart EBuy 0.00200537 TInvDB EInvRd 0.170836 EInvUpd 0.125567 TCustDB ECustRd 0.00189684 ECustUpd 0.00200534 TFS EFRd 0.325499 EFWrite 0.279225 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 56.3191 TWebServer EAccess ERdImg 0.357252 EAccess EBrowse 2574.71 EAccess EOrder 2574.61 TStoreApp EBrowse EInvRd 367.379 EOrder EBuy 8.26886 TCart EBuy EInvRd 474.454 EBuy EInvUpd 474.454 TInvDB EInvRd EFRd 3.00307 EInvUpd EFRd 3.00307 0 EInvUpd EFWrite 0 1.65036 TCustDB ECustRd EFRd 1.52983 ECustUpd EFRd 1.52983 0 ECustUpd EFWrite 0 2.69103 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 52.2838 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 8622.48 TWebServer EAccess 7641.4 TImgDisk ERdImg 1 TStoreApp EBrowse 5510.27 EOrder 2140.96 TCart EBuy 2073.69 TInvDB EInvRd 41.0348 EInvUpd 22.6344 33.9047 TCustDB ECustRd 81.7891 ECustUpd 21.2703 25.3588 TFS EFRd 18.1674 EFWrite 6.05581 18.1674 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 2.80174e+008 3.76847 TWebServer EAccess 1.4657e+008 2.51015 TImgDisk ERdImg 1 1 TStoreApp EBrowse 3.44631e+007 1.13503 EOrder 1.35991e+007 2.96684 TCart EBuy 4.68063e+006 1.08847 TInvDB EInvRd 2935.79 1.74349 EInvUpd 1208.11 1344.69 0.798581 TCustDB ECustRd 9206.91 1.37633 ECustUpd 1081.22 854.134 0.890118 TFS EFRd 239.051 0.724276 EFWrite 26.5612 239.051 0.452672 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0176289 152.005 152.005 TWebServer EAccess 0.0176289 134.71 134.71 TImgDisk ERdImg 0.264459 0.264459 0.264459 TStoreApp EBrowse 0.0151918 83.7111 83.7111 EOrder 0.00243877 5.2213 5.2213 Total: 0.0176306 88.9324 88.9324 TCart EBuy 0.00243878 5.05728 5.05728 TInvDB EInvRd 0.211741 8.68873 8.68873 EInvUpd 0.00243879 0.0552007 0.0826864 0.137887 Total: 0.214179 8.74393 0.0826864 8.82661 TCustDB ECustRd 0 0 0 ECustUpd 0.00243878 0.0518735 0.0618444 0.113718 Total: 0.00243878 0.0518735 0.0618444 0.113718 TFS EFRd 0.319923 5.81218 5.81218 EFWrite 0.00992726 0.0601176 0.180353 0.24047 Total: 0.32985 5.87229 0.180353 6.05265 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 152 EUserBeh 16.2976 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.264459 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0352578 0.0728595 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.227877 0 EOrder 0.147334 0 Task Total: 0.375211 TCart 0 10 EBuy 0.0731633 0.137152 Processor Total: 0.448374 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.423481 0.927842 EInvUpd 0.0268267 0.463921 4.63921 Task Total: 0.450308 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0146327 0.573015 2.86507 Task Total: 0.0146327 Processor Total: 0.464941 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.959769 15.1674 EFWrite 0.0397091 5.05581 15.1674 Task Total: 0.999478