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 = 0.817342, $dem_order = 37.0818, $nusers = 190, $order_rate = 0.182658, $req_browse_read = 7.17881, $userThink = 2624.37 Convergence test value: 0.00863732 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 920 MVA Wait(): 220610 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(190) 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 2624.37 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 37.0818 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 0.817342 EAccess EOrder 0.182658 TStoreApp EBrowse EInvRd 7.17881 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 0.0231801 TWebServer EAccess 0.022822 TImgDisk ERdImg 0.205066 TStoreApp EBrowse 0.0252678 EOrder 0.0316613 TCart EBuy 0.0024657 TInvDB EInvRd 0.170423 EInvUpd 0.123669 TCustDB ECustRd 0.00226893 ECustUpd 0.00246564 TFS EFRd 0.331806 EFWrite 0.276321 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.724401 EAccess EBrowse 966.929 EAccess EOrder 966.196 TStoreApp EBrowse EInvRd 343.235 EOrder EBuy 2712.56 TCart EBuy EInvRd 424.938 EBuy EInvUpd 424.937 TInvDB EInvRd EFRd 5.88689 EInvUpd EFRd 5.88689 0 EInvUpd EFWrite 0 3.2941 TCustDB ECustRd EFRd 3.04134 ECustUpd EFRd 3.04134 0 ECustUpd EFWrite 0 3.66279 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 64.0446 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 6753.69 TWebServer EAccess 4129.73 TImgDisk ERdImg 1 TStoreApp EBrowse 2799.16 EOrder 4637.76 TCart EBuy 1888.91 TInvDB EInvRd 44.6319 EInvUpd 24.6278 37.6871 TCustDB ECustRd 84.0925 ECustUpd 21.8879 26.8874 TFS EFRd 17.2317 EFWrite 5.74388 17.2317 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 1.09244e+008 2.39505 TWebServer EAccess 4.66333e+007 2.73434 TImgDisk ERdImg 1 1 TStoreApp EBrowse 9.7852e+006 1.24886 EOrder 5.39055e+007 2.50621 TCart EBuy 3.86475e+006 1.08317 TInvDB EInvRd 3395.74 1.70468 EInvUpd 1386.68 1681.32 0.79008 TCustDB ECustRd 9598.56 1.35735 ECustUpd 1110.23 963.491 0.871667 TFS EFRd 211.541 0.712426 EFWrite 23.5045 211.541 0.445266 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0281319 189.994 189.994 TWebServer EAccess 0.0281319 116.177 116.177 TImgDisk ERdImg 0.421944 0.421944 0.421944 TStoreApp EBrowse 0.0229915 64.3568 64.3568 EOrder 0.00513808 23.8292 23.8292 Total: 0.0281296 88.186 88.186 TCart EBuy 0.005138 9.70524 9.70524 TInvDB EInvRd 0.180481 8.0552 8.0552 EInvUpd 0.00513885 0.126559 0.193668 0.320227 Total: 0.185619 8.18175 0.193668 8.37542 TCustDB ECustRd 0 0 0 ECustUpd 0.005138 0.11246 0.138148 0.250608 Total: 0.005138 0.11246 0.138148 0.250608 TFS EFRd 0.302391 5.21069 5.21069 EFWrite 0.0218609 0.125567 0.3767 0.502267 Total: 0.324252 5.33626 0.3767 5.71296 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 190 EUserBeh 73.8287 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.421944 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0562638 0.118947 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.344872 0 EOrder 0.190529 0 Task Total: 0.535401 TCart 0 10 EBuy 0.15414 0.615447 Processor Total: 0.689542 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.360961 1.01841 EInvUpd 0.0565273 0.509207 5.09207 Task Total: 0.417488 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.030828 0.614795 3.07397 Task Total: 0.030828 Processor Total: 0.448316 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.907172 14.2317 EFWrite 0.0874437 4.74389 14.2317 Task Total: 0.994616