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 = 0.977095, $dem_order = 11.6562, $nusers = 275, $order_rate = 0.0229052, $req_browse_read = 12.9183, $userThink = 2393.66 Convergence test value: 0.00566447 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 623 MVA Wait(): 50952 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(275) 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 2393.66 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 11.6562 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 0.977095 EAccess EOrder 0.0229052 TStoreApp EBrowse EInvRd 12.9183 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 0.0155047 TWebServer EAccess 0.0142631 TImgDisk ERdImg 0.227136 TStoreApp EBrowse 0.0168032 EOrder 0.0418765 TCart EBuy 0.00242325 TInvDB EInvRd 0.170674 EInvUpd 0.123881 TCustDB ECustRd 0.00223301 ECustUpd 0.00242327 TFS EFRd 0.331863 EFWrite 0.276314 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 4330.12 TWebServer EAccess ERdImg 0.388953 EAccess EBrowse 3163.94 EAccess EOrder 3163.97 TStoreApp EBrowse EInvRd 334.309 EOrder EBuy 0 TCart EBuy EInvRd 442.273 EBuy EInvUpd 442.273 TInvDB EInvRd EFRd 0.57172 EInvUpd EFRd 0.57172 0 EInvUpd EFWrite 0 0.309553 TCustDB ECustRd EFRd 0.296475 ECustUpd EFRd 0.296475 0 ECustUpd EFWrite 0 1.91726 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 46.0314 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 14672.3 TWebServer EAccess 7948.38 TImgDisk ERdImg 1 TStoreApp EBrowse 4827.56 EOrder 1946.35 TCart EBuy 1934.96 TInvDB EInvRd 38.2536 EInvUpd 21.0928 31.0123 TCustDB ECustRd 80.5373 ECustUpd 20.9231 24.2535 TFS EFRd 19.0879 EFWrite 6.36262 19.0879 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 5.44999e+008 2.53161 TWebServer EAccess 1.60234e+008 2.53628 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.65764e+007 1.14036 EOrder 1.16051e+007 3.06342 TCart EBuy 4.07279e+006 1.08779 TInvDB EInvRd 2640.46 1.80441 EInvUpd 1099.12 1122.94 0.818455 TCustDB ECustRd 9060.9 1.39694 ECustUpd 1080.9 783.235 0.913374 TFS EFRd 267.819 0.735068 EFWrite 29.7577 267.819 0.459417 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.018743 275.003 275.003 TWebServer EAccess 0.018743 148.976 148.976 TImgDisk ERdImg 0.281128 0.281128 0.281128 TStoreApp EBrowse 0.0183126 88.4052 88.4052 EOrder 0.000429287 0.835543 0.835543 Total: 0.0187419 89.2407 89.2407 TCart EBuy 0.000429287 0.830654 0.830654 TInvDB EInvRd 0.237852 9.09871 9.09871 EInvUpd 0.000429286 0.00905483 0.0133131 0.022368 Total: 0.238282 9.10777 0.0133131 9.12108 TCustDB ECustRd 0 0 0 ECustUpd 0.000429287 0.008982 0.0104117 0.0193937 Total: 0.000429287 0.008982 0.0104117 0.0193937 TFS EFRd 0.332256 6.34206 6.34206 EFWrite 0.00168964 0.0107506 0.0322517 0.0430023 Total: 0.333946 6.35281 0.0322517 6.38507 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 275 EUserBeh 44.8643 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.281128 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.037486 0.0776912 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.274689 0 EOrder 0.00500386 0 Task Total: 0.279693 TCart 0 10 EBuy 0.0128786 0.0198378 Processor Total: 0.292571 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.475705 0.866366 EInvUpd 0.00472215 0.433183 4.33183 Task Total: 0.480427 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00257572 0.538756 2.69378 Task Total: 0.00257572 Processor Total: 0.483003 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.996769 16.0879 EFWrite 0.00675858 5.36262 16.0879 Task Total: 1.00353