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 = 0.862606, $dem_order = 17.1478, $nusers = 95, $order_rate = 0.137394, $req_browse_read = 7.64453, $userThink = 132.149 Convergence test value: 0.00422644 Number of iterations: 10 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 60 MVA Step(): 770 MVA Wait(): 82824 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(95) 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 132.149 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 17.1478 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 0.862606 EAccess EOrder 0.137394 TStoreApp EBrowse EInvRd 7.64453 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 0.0501346 TWebServer EAccess 0.0515319 TImgDisk ERdImg 0.375526 TStoreApp EBrowse 0.0326569 EOrder 0.0403406 TCart EBuy 0.00203054 TInvDB EInvRd 0.172835 EInvUpd 0.125696 TCustDB ECustRd 0.00189508 ECustUpd 0.00203052 TFS EFRd 0.332325 EFWrite 0.276246 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.699492 EAccess EBrowse 213.373 EAccess EOrder 212.939 TStoreApp EBrowse EInvRd 366.83 EOrder EBuy 276.676 TCart EBuy EInvRd 464.444 EBuy EInvUpd 464.446 TInvDB EInvRd EFRd 4.52584 EInvUpd EFRd 4.52584 0 EInvUpd EFWrite 0 2.51071 TCustDB ECustRd EFRd 2.31324 ECustUpd EFRd 2.31324 0 ECustUpd EFWrite 0 3.19121 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 57.6907 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 3408.25 TWebServer EAccess 3276.08 TImgDisk ERdImg 1 TStoreApp EBrowse 3146.85 EOrder 2333.87 TCart EBuy 2040.43 TInvDB EInvRd 42.894 EInvUpd 23.6649 35.8496 TCustDB ECustRd 82.8644 ECustUpd 21.5607 26.124 TFS EFRd 17.6531 EFWrite 5.88436 17.6531 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 5.42329e+007 4.66874 TWebServer EAccess 3.18781e+007 2.97018 TImgDisk ERdImg 1 1 TStoreApp EBrowse 1.22386e+007 1.23589 EOrder 1.54176e+007 2.8305 TCart EBuy 4.52508e+006 1.08688 TInvDB EInvRd 3163.52 1.7194 EInvUpd 1295.65 1511.51 0.792541 TCustDB ECustRd 9377.59 1.3657 ECustUpd 1092.01 907.379 0.879303 TFS EFRd 223.712 0.717873 EFWrite 24.8568 223.712 0.448671 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0278733 94.9993 94.9993 TWebServer EAccess 0.0278733 91.3153 91.3153 TImgDisk ERdImg 0.418106 0.418106 0.418106 TStoreApp EBrowse 0.0240441 75.6631 75.6631 EOrder 0.00382969 8.93798 8.93798 Total: 0.0278737 84.6011 84.6011 TCart EBuy 0.00382968 7.8142 7.8142 TInvDB EInvRd 0.195317 8.37794 8.37794 EInvUpd 0.00383007 0.0906382 0.137307 0.227945 Total: 0.199147 8.46858 0.137307 8.60588 TCustDB ECustRd 0 0 0 ECustUpd 0.00382968 0.0825707 0.100047 0.182617 Total: 0.00382968 0.0825707 0.100047 0.182617 TFS EFRd 0.311038 5.49077 5.49077 EFWrite 0.0159436 0.0938178 0.281453 0.375271 Total: 0.326981 5.58459 0.281453 5.86604 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 95 EUserBeh 3.68344 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.418106 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0557467 0.116908 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.360661 0 EOrder 0.0656707 0 Task Total: 0.426332 TCart 0 10 EBuy 0.11489 0.279561 Processor Total: 0.541222 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.390634 0.972399 EInvUpd 0.0421308 0.486199 4.86199 Task Total: 0.432765 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0229781 0.594605 2.97303 Task Total: 0.0229781 Processor Total: 0.455743 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.933113 14.653 EFWrite 0.0637744 4.88435 14.653 Task Total: 0.996888