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 = 0.901306, $dem_order = 34.1007, $nusers = 270, $order_rate = 0.0986936, $req_browse_read = 3.79548, $userThink = 2482.95 Convergence test value: 0.00977486 Number of iterations: 13 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 78 MVA Step(): 1648 MVA Wait(): 422669 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(270) 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 2482.95 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 34.1007 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 0.901306 EAccess EOrder 0.0986936 TStoreApp EBrowse EInvRd 3.79548 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 0.0369276 TWebServer EAccess 0.0245828 TImgDisk ERdImg 0.203573 TStoreApp EBrowse 0.0356658 EOrder 0.0308499 TCart EBuy 0.000720325 TInvDB EInvRd 0.181021 EInvUpd 0.132661 TCustDB ECustRd 0.000702455 ECustUpd 0.000720326 TFS EFRd 0.333953 EFWrite 0.27581 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 117.952 TWebServer EAccess ERdImg 2.79915 EAccess EBrowse 1006.29 EAccess EOrder 1002.26 TStoreApp EBrowse EInvRd 357.154 EOrder EBuy 2224.6 TCart EBuy EInvRd 444.519 EBuy EInvUpd 444.519 TInvDB EInvRd EFRd 5.61449 EInvUpd EFRd 5.61449 0 EInvUpd EFWrite 0 3.13616 TCustDB ECustRd EFRd 2.89209 ECustUpd EFRd 2.89209 0 ECustUpd EFWrite 0 3.56558 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 62.6267 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 5469.75 TWebServer EAccess 2868.74 TImgDisk ERdImg 1 TStoreApp EBrowse 1538.42 EOrder 4224.6 TCart EBuy 1966.87 TInvDB EInvRd 44.2788 EInvUpd 24.4322 37.312 TCustDB ECustRd 83.8214 ECustUpd 21.816 26.7266 TFS EFRd 17.3133 EFWrite 5.7711 17.3133 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 6.14641e+007 2.05441 TWebServer EAccess 2.26064e+007 2.74694 TImgDisk ERdImg 1 1 TStoreApp EBrowse 3.4751e+006 1.46832 EOrder 4.45631e+007 2.49692 TCart EBuy 4.19512e+006 1.0844 TInvDB EInvRd 3347.1 1.70717 EInvUpd 1367.5 1645.7 0.790382 TCustDB ECustRd 9548.02 1.35895 ECustUpd 1105.82 951.436 0.873057 TFS EFRd 213.87 0.713495 EFWrite 23.7634 213.87 0.445935 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0493634 270.005 270.005 TWebServer EAccess 0.0493634 141.611 141.611 TImgDisk ERdImg 0.74077 0.74077 0.74077 TStoreApp EBrowse 0.0445107 68.476 68.476 EOrder 0.00487395 20.5905 20.5905 Total: 0.0493847 89.0665 89.0665 TCart EBuy 0.00487284 9.58427 9.58427 TInvDB EInvRd 0.183552 8.12747 8.12747 EInvUpd 0.00487404 0.119083 0.18186 0.300943 Total: 0.188426 8.24655 0.18186 8.42841 TCustDB ECustRd 0 0 0 ECustUpd 0.00487284 0.106306 0.130234 0.23654 Total: 0.00487284 0.106306 0.130234 0.23654 TFS EFRd 0.304174 5.26625 5.26625 EFWrite 0.0206357 0.119091 0.357272 0.476362 Total: 0.32481 5.38534 0.357272 5.74261 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 270 EUserBeh 122.567 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.74077 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0987268 0.218982 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.667661 0 EOrder 0.166205 0 Task Total: 0.833866 TCart 0 10 EBuy 0.146185 1.48344 Processor Total: 0.980051 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.367104 1.00876 EInvUpd 0.0536144 0.50438 5.0438 Task Total: 0.420718 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0292371 0.610654 3.05327 Task Total: 0.0292371 Processor Total: 0.449956 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.912522 14.3133 EFWrite 0.0825427 4.7711 14.3133 Task Total: 0.995065