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 = 0.895324, $dem_order = 9.95367, $nusers = 294, $order_rate = 0.104676, $req_browse_read = 14.6831, $userThink = 2446.51 Convergence test value: 0.00268555 Number of iterations: 10 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 60 MVA Step(): 749 MVA Wait(): 72823 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(294) 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 2446.51 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 9.95367 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 0.895324 EAccess EOrder 0.104676 TStoreApp EBrowse EInvRd 14.6831 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 0.067558 TWebServer EAccess 0.0298748 TImgDisk ERdImg 0.261486 TStoreApp EBrowse 0.0164768 EOrder 0.0236665 TCart EBuy 0.00368868 TInvDB EInvRd 0.163643 EInvUpd 0.117947 TCustDB ECustRd 0.00326497 ECustUpd 0.0036894 TFS EFRd 0.33015 EFWrite 0.276405 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 6382.09 TWebServer EAccess ERdImg 0.32464 EAccess EBrowse 3635.98 EAccess EOrder 3635.99 TStoreApp EBrowse EInvRd 356.697 EOrder EBuy 0.378671 TCart EBuy EInvRd 464.905 EBuy EInvUpd 464.905 TInvDB EInvRd EFRd 2.16773 EInvUpd EFRd 2.16773 0 EInvUpd EFWrite 0 1.18514 TCustDB ECustRd EFRd 1.10727 ECustUpd EFRd 1.10727 0 ECustUpd EFWrite 0 2.42419 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 49.8678 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 17929.3 TWebServer EAccess 9100.63 TImgDisk ERdImg 1 TStoreApp EBrowse 5840.28 EOrder 2042.04 TCart EBuy 2031.88 TInvDB EInvRd 40.0535 EInvUpd 22.0906 32.8797 TCustDB ECustRd 81.3105 ECustUpd 21.1392 24.9696 TFS EFRd 18.4704 EFWrite 6.15679 18.4704 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 8.06907e+008 2.51014 TWebServer EAccess 2.04993e+008 2.47512 TImgDisk ERdImg 1 1 TStoreApp EBrowse 3.83298e+007 1.12375 EOrder 1.27934e+007 3.06801 TCart EBuy 4.49342e+006 1.08838 TInvDB EInvRd 2825.13 1.76099 EInvUpd 1166.5 1262.47 0.803835 TCustDB ECustRd 9142.78 1.38288 ECustUpd 1079.15 828.326 0.897206 TFS EFRd 248.332 0.727917 EFWrite 27.5925 248.332 0.454948 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0163978 294.001 294.001 TWebServer EAccess 0.0163978 149.23 149.23 TImgDisk ERdImg 0.245972 0.245972 0.245972 TStoreApp EBrowse 0.0146816 85.7448 85.7448 EOrder 0.00171649 3.50515 3.50515 Total: 0.0163981 89.25 89.25 TCart EBuy 0.00171649 3.4877 3.4877 TInvDB EInvRd 0.220722 8.84071 8.84071 EInvUpd 0.00171649 0.0379183 0.0564378 0.0943561 Total: 0.222439 8.87863 0.0564378 8.93507 TCustDB ECustRd 0 0 0 ECustUpd 0.00171649 0.0362852 0.0428601 0.0791453 Total: 0.00171649 0.0362852 0.0428601 0.0791453 TFS EFRd 0.32442 5.99215 5.99215 EFWrite 0.0069051 0.0425132 0.12754 0.170053 Total: 0.331325 6.03466 0.12754 6.1622 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 294 EUserBeh 40.1175 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.245972 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0327956 0.06765 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.220225 0 EOrder 0.0170854 0 Task Total: 0.23731 TCart 0 10 EBuy 0.0514948 0.00645558 Processor Total: 0.288805 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.441445 0.904982 EInvUpd 0.0188814 0.452491 4.52491 Task Total: 0.460326 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.010299 0.561522 2.80761 Task Total: 0.010299 Processor Total: 0.470625 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.973259 15.4704 EFWrite 0.0276204 5.15679 15.4704 Task Total: 1.00088