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 = 0.881649, $dem_order = 36.5057, $nusers = 245, $order_rate = 0.118351, $req_browse_read = 9.38909, $userThink = 1809.91 Convergence test value: 0.0047297 Number of iterations: 12 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 72 MVA Step(): 1145 MVA Wait(): 182695 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(245) 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 1809.91 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 36.5057 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 0.881649 EAccess EOrder 0.118351 TStoreApp EBrowse EInvRd 9.38909 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 0.128583 TWebServer EAccess 0.0538697 TImgDisk ERdImg 0.307161 TStoreApp EBrowse 0.0316577 EOrder 0.0318888 TCart EBuy 0.00216225 TInvDB EInvRd 0.0807639 EInvUpd 0.0715376 TCustDB ECustRd 0.00213079 ECustUpd 0.00216223 TFS EFRd 0.155394 EFWrite 0.151497 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 2222.39 TWebServer EAccess ERdImg 0.55763 EAccess EBrowse 2440.38 EAccess EOrder 2440.49 TStoreApp EBrowse EInvRd 375.371 EOrder EBuy 31.869 TCart EBuy EInvRd 482.217 EBuy EInvUpd 482.217 TInvDB EInvRd EFRd 3.44996 EInvUpd EFRd 3.44996 0 EInvUpd EFWrite 0 1.90118 TCustDB ECustRd EFRd 1.75731 ECustUpd EFRd 1.75731 0 ECustUpd EFWrite 0 2.83541 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 53.7222 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 10219.9 TWebServer EAccess 6187.54 TImgDisk ERdImg 1 TStoreApp EBrowse 3929.34 EOrder 2174.23 TCart EBuy 2106.73 TInvDB EInvRd 41.5708 EInvUpd 22.9315 34.4665 TCustDB ECustRd 82.0738 ECustUpd 21.348 25.5758 TFS EFRd 18.0112 EFWrite 6.00372 18.0112 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 2.74132e+008 2.62463 TWebServer EAccess 9.40024e+007 2.45529 TImgDisk ERdImg 1 1 TStoreApp EBrowse 1.8423e+007 1.19322 EOrder 1.41337e+007 2.98982 TCart EBuy 4.83183e+006 1.08866 TInvDB EInvRd 2999.07 1.73544 EInvUpd 1232.2 1391.41 0.796354 TCustDB ECustRd 9249.01 1.37305 ECustUpd 1083.38 868.881 0.886647 TFS EFRd 234.335 0.722359 EFWrite 26.0372 234.335 0.451474 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.023973 245.001 245.001 TWebServer EAccess 0.023973 148.334 148.334 TImgDisk ERdImg 0.359625 0.359625 0.359625 TStoreApp EBrowse 0.0211375 83.0565 83.0565 EOrder 0.00283747 6.16932 6.16932 Total: 0.023975 89.2258 89.2258 TCart EBuy 0.00283748 5.9778 5.9778 TInvDB EInvRd 0.206975 8.60411 8.60411 EInvUpd 0.00283749 0.0650679 0.0977981 0.162866 Total: 0.209812 8.66918 0.0977981 8.76698 TCustDB ECustRd 0 0 0 ECustUpd 0.00283748 0.0605744 0.0725709 0.133145 Total: 0.00283748 0.0605744 0.0725709 0.133145 TFS EFRd 0.317407 5.71687 5.71687 EFWrite 0.0116235 0.0697843 0.209353 0.279137 Total: 0.32903 5.78665 0.209353 5.996 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 245 EUserBeh 43.389 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.359625 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.047946 0.100463 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.317063 0 EOrder 0.103584 0 Task Total: 0.420647 TCart 0 10 EBuy 0.0851243 0.215918 Processor Total: 0.505771 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.41395 0.940849 EInvUpd 0.0312123 0.470424 4.70424 Task Total: 0.445162 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0170249 0.579515 2.89758 Task Total: 0.0170249 Processor Total: 0.462187 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.95222 15.0112 EFWrite 0.046494 5.00372 15.0112 Task Total: 0.998714