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 = 0.767033, $dem_order = 16.1142, $nusers = 86, $order_rate = 0.232967, $req_browse_read = 1.20544, $userThink = 118.336 Convergence test value: 0.00476492 Number of iterations: 38 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 228 MVA Step(): 3742 MVA Wait(): 592030 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(86) 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 118.336 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 16.1142 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 0.767033 EAccess EOrder 0.232967 TStoreApp EBrowse EInvRd 1.20544 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 0.0240062 TWebServer EAccess 0.0663335 TImgDisk ERdImg 1 TStoreApp EBrowse 0.0669275 EOrder 0.0637588 TCart EBuy 0.00185864 TInvDB EInvRd 0.101399 EInvUpd 0.0868095 TCustDB ECustRd 0.0018307 ECustUpd 0.00185869 TFS EFRd 0.191372 EFWrite 0.184617 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 6.66908 EAccess EBrowse 0 EAccess EOrder 0 TStoreApp EBrowse EInvRd 120.877 EOrder EBuy 3479.94 TCart EBuy EInvRd 119.698 EBuy EInvUpd 119.698 TInvDB EInvRd EFRd 11.6029 EInvUpd EFRd 11.6029 0 EInvUpd EFWrite 0 7.04588 TCustDB ECustRd EFRd 6.39614 ECustUpd EFRd 6.39614 0 ECustUpd EFWrite 0 5.69978 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 183.326 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 1379 TWebServer EAccess 1260.75 TImgDisk ERdImg 1 TStoreApp EBrowse 220.376 EOrder 4183.04 TCart EBuy 686.235 TInvDB EInvRd 48.8815 EInvUpd 26.9685 45.92 TCustDB ECustRd 83.2831 ECustUpd 21.7829 29.0767 TFS EFRd 13.6746 EFWrite 4.55821 13.6746 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 1.97268e+007 10.3736 TWebServer EAccess 1.62425e+007 10.2186 TImgDisk ERdImg 1 1 TStoreApp EBrowse 105729 2.17705 EOrder 4.74523e+007 2.7119 TCart EBuy 487156 1.03448 TInvDB EInvRd 4001.18 1.67455 EInvUpd 1623.14 2564.06 0.788145 TCustDB ECustRd 9202.83 1.32681 ECustUpd 1040.47 1136.34 0.841538 TFS EFRd 122.948 0.657492 EFWrite 13.6609 122.948 0.410932 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0623619 85.9969 85.9969 TWebServer EAccess 0.0623619 78.6229 78.6229 TImgDisk ERdImg 0.935397 0.935397 0.935397 TStoreApp EBrowse 0.047832 10.541 10.541 EOrder 0.0145278 60.7703 60.7703 Total: 0.0623598 71.3113 71.3113 TCart EBuy 0.0145264 9.96854 9.96854 TInvDB EInvRd 0.101231 4.94832 4.94832 EInvUpd 0.0145261 0.391746 0.667037 1.05878 Total: 0.115757 5.34007 0.667037 6.0071 TCustDB ECustRd 0 0 0 ECustUpd 0.0145264 0.316428 0.422381 0.738809 Total: 0.0145264 0.316428 0.422381 0.738809 TFS EFRd 0.229683 3.14083 3.14083 EFWrite 0.0688442 0.313806 0.941419 1.25522 Total: 0.298527 3.45463 0.941419 4.39605 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 86 EUserBeh 7.37966 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.935397 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.124724 0.282645 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.71748 0.743852 EOrder 0.234105 0.799107 Task Total: 0.951585 TCart 0 10 EBuy 0.435793 3.83247 Processor Total: 1.38738 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.202462 1.38196 EInvUpd 0.159787 0.69098 6.9098 Task Total: 0.362249 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0871586 0.712151 3.56075 Task Total: 0.0871586 Processor Total: 0.449407 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.689049 10.6746 EFWrite 0.275377 3.55821 10.6746 Task Total: 0.964426