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 = 0.767387, $dem_order = 61.8446, $nusers = 189, $order_rate = 0.232613, $req_browse_read = 3.54567, $userThink = 1367.81 Convergence test value: 0.00883734 Number of iterations: 41 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 246 MVA Step(): 3702 MVA Wait(): 589893 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(189) 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 1367.81 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 61.8446 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 0.767387 EAccess EOrder 0.232613 TStoreApp EBrowse EInvRd 3.54567 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 0.127422 TWebServer EAccess 0.118254 TImgDisk ERdImg 0.79607 TStoreApp EBrowse 0.0694151 EOrder 0.06539 TCart EBuy 0.00903802 TInvDB EInvRd 0.0832018 EInvUpd 0.0715629 TCustDB ECustRd 0.00833667 ECustUpd 0.00903772 TFS EFRd 0.191948 EFWrite 0.184861 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 24.4866 TWebServer EAccess ERdImg 1.41225 EAccess EBrowse 1121.77 EAccess EOrder 1123.03 TStoreApp EBrowse EInvRd 197.709 EOrder EBuy 5678.8 TCart EBuy EInvRd 220.992 EBuy EInvUpd 220.992 TInvDB EInvRd EFRd 9.93484 EInvUpd EFRd 9.93484 0 EInvUpd EFWrite 0 5.71062 TCustDB ECustRd EFRd 5.52661 ECustUpd EFRd 5.52661 0 ECustUpd EFWrite 0 5.30964 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 99.6077 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 4829.24 TWebServer EAccess 3436.9 TImgDisk ERdImg 1 TStoreApp EBrowse 894.122 EOrder 6837.03 TCart EBuy 1095.19 TInvDB EInvRd 50.1648 EInvUpd 27.6922 43.6874 TCustDB ECustRd 89.7595 ECustUpd 23.3726 29.8084 TFS EFRd 16.1632 EFWrite 5.38772 16.1632 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 9.04684e+007 3.87918 TWebServer EAccess 5.51826e+007 4.67162 TImgDisk ERdImg 1 1 TStoreApp EBrowse 1.17098e+006 1.46472 EOrder 1.26145e+008 2.69859 TCart EBuy 1.26621e+006 1.05566 TInvDB EInvRd 4246.54 1.68747 EInvUpd 1728.34 2314.73 0.793528 TCustDB ECustRd 10789.7 1.33921 ECustUpd 1228.84 1202.91 0.859817 TFS EFRd 182.269 0.697688 EFWrite 20.2522 182.269 0.436055 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.039137 189.002 189.002 TWebServer EAccess 0.039137 134.51 134.51 TImgDisk ERdImg 0.586999 0.586999 0.586999 TStoreApp EBrowse 0.0300303 26.8508 26.8508 EOrder 0.00910292 62.2369 62.2369 Total: 0.0391332 89.0877 89.0877 TCart EBuy 0.0091041 9.97073 9.97073 TInvDB EInvRd 0.133796 6.71182 6.71182 EInvUpd 0.00910276 0.252075 0.397676 0.649751 Total: 0.142898 6.9639 0.397676 7.36157 TCustDB ECustRd 0 0 0 ECustUpd 0.0091041 0.212786 0.271378 0.484165 Total: 0.0091041 0.212786 0.271378 0.484165 TFS EFRd 0.272961 4.41191 4.41191 EFWrite 0.0422706 0.227742 0.683226 0.910968 Total: 0.315231 4.63965 0.683226 5.32288 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 189 EUserBeh 53.5317 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.586999 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0782739 0.169688 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.450455 0.256516 EOrder 0.562967 1.05761 Task Total: 1.01342 TCart 0 10 EBuy 0.273123 3.05345 Processor Total: 1.28654 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.267591 1.18831 EInvUpd 0.10013 0.594156 5.94156 Task Total: 0.367721 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0546246 0.682703 3.41352 Task Total: 0.0546246 Processor Total: 0.422346 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.818882 13.1632 EFWrite 0.169082 4.38773 13.1632 Task Total: 0.987965