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 = 0.950341, $dem_order = 74.0444, $nusers = 157, $order_rate = 0.0496595, $req_browse_read = 12.205, $userThink = 725.57 Convergence test value: 0.00227021 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 528 MVA Wait(): 43904 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(157) 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 725.57 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 74.0444 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 0.950341 EAccess EOrder 0.0496595 TStoreApp EBrowse EInvRd 12.205 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 0.00937493 TWebServer EAccess 0.0117225 TImgDisk ERdImg 0.184705 TStoreApp EBrowse 0.0181816 EOrder 0.0413515 TCart EBuy 0.00185652 TInvDB EInvRd 0.173934 EInvUpd 0.126637 TCustDB ECustRd 0.00174268 ECustUpd 0.00185653 TFS EFRd 0.332567 EFWrite 0.2762 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 167.989 TWebServer EAccess ERdImg 0.414908 EAccess EBrowse 2545.94 EAccess EOrder 2545.89 TStoreApp EBrowse EInvRd 342.561 EOrder EBuy 0 TCart EBuy EInvRd 450.445 EBuy EInvUpd 450.445 TInvDB EInvRd EFRd 1.26634 EInvUpd EFRd 1.26634 0 EInvUpd EFWrite 0 0.688531 TCustDB ECustRd EFRd 0.651212 ECustUpd EFRd 0.651212 0 ECustUpd EFWrite 0 2.13838 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 47.591 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 8003.9 TWebServer EAccess 7110.43 TImgDisk ERdImg 1 TStoreApp EBrowse 4671.89 EOrder 2042.72 TCart EBuy 1970.45 TInvDB EInvRd 39.0251 EInvUpd 21.5205 31.8105 TCustDB ECustRd 80.8566 ECustUpd 21.0127 24.5613 TFS EFRd 18.8129 EFWrite 6.27098 18.8129 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 2.4561e+008 3.83391 TWebServer EAccess 1.28578e+008 2.54318 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.50689e+007 1.14855 EOrder 1.22797e+007 2.94287 TCart EBuy 4.22403e+006 1.08792 TInvDB EInvRd 2716.59 1.78376 EInvUpd 1126.52 1180.93 0.811284 TCustDB ECustRd 9091.1 1.39055 ECustUpd 1079.31 802.263 0.905915 TFS EFRd 259.049 0.731929 EFWrite 28.7832 259.049 0.457455 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0196152 156.998 156.998 TWebServer EAccess 0.0196152 139.473 139.473 TImgDisk ERdImg 0.294169 0.294169 0.294169 TStoreApp EBrowse 0.0186374 87.0717 87.0717 EOrder 0.000973884 1.98937 1.98937 Total: 0.0196113 89.0611 89.0611 TCart EBuy 0.000973885 1.91899 1.91899 TInvDB EInvRd 0.230396 8.99121 8.99121 EInvUpd 0.00097389 0.0209585 0.0309799 0.0519385 Total: 0.23137 9.01217 0.0309799 9.04315 TCustDB ECustRd 0 0 0 ECustUpd 0.000973885 0.0204639 0.0239199 0.0443838 Total: 0.000973885 0.0204639 0.0239199 0.0443838 TFS EFRd 0.328969 6.18887 6.18887 EFWrite 0.0038694 0.0242649 0.0727948 0.0970598 Total: 0.332838 6.21313 0.0727948 6.28593 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 157 EUserBeh 14.2322 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.294169 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0392304 0.0814926 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.279561 0 EOrder 0.0721107 0 Task Total: 0.351671 TCart 0 10 EBuy 0.0292166 0.0702538 Processor Total: 0.380888 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.460792 0.882349 EInvUpd 0.0107128 0.441175 4.41175 Task Total: 0.471504 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00584331 0.548516 2.74258 Task Total: 0.00584331 Processor Total: 0.477348 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.986906 15.8129 EFWrite 0.0154776 5.27098 15.8129 Task Total: 1.00238