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 = 0.92174, $dem_order = 24.6067, $nusers = 232, $order_rate = 0.07826, $req_browse_read = 21.7854, $userThink = 2213.08 Convergence test value: 0.00507474 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 672 MVA Wait(): 61995 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(232) 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 2213.08 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 24.6067 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 0.92174 EAccess EOrder 0.07826 TStoreApp EBrowse EInvRd 21.7854 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 0.036578 TWebServer EAccess 0.0291795 TImgDisk ERdImg 0.421942 TStoreApp EBrowse 0.0105525 EOrder 0.0191904 TCart EBuy 0.00513885 TInvDB EInvRd 0.156839 EInvUpd 0.112333 TCustDB ECustRd 0.00434873 ECustUpd 0.00513782 TFS EFRd 0.328372 EFWrite 0.276265 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 5115.7 TWebServer EAccess ERdImg 0.205385 EAccess EBrowse 5179.22 EAccess EOrder 5179.33 TStoreApp EBrowse EInvRd 342.617 EOrder EBuy 0 TCart EBuy EInvRd 450.935 EBuy EInvUpd 450.935 TInvDB EInvRd EFRd 1.16368 EInvUpd EFRd 1.16368 0 EInvUpd EFWrite 0 0.632312 TCustDB ECustRd EFRd 0.599047 ECustUpd EFRd 0.599047 0 ECustUpd EFWrite 0 2.1058 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 47.3506 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 20359.4 TWebServer EAccess 13030.5 TImgDisk ERdImg 1 TStoreApp EBrowse 8326.49 EOrder 1996.16 TCart EBuy 1971.91 TInvDB EInvRd 38.9099 EInvUpd 21.4566 31.6911 TCustDB ECustRd 80.8081 ECustUpd 20.9991 24.5156 TFS EFRd 18.853 EFWrite 6.28433 18.853 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 1.19447e+009 2.88166 TWebServer EAccess 4.24462e+008 2.49987 TImgDisk ERdImg 1 1 TStoreApp EBrowse 7.51179e+007 1.08348 EOrder 1.21039e+007 3.0376 TCart EBuy 4.23082e+006 1.08805 TInvDB EInvRd 2704.93 1.78664 EInvUpd 1122.29 1172.1 0.812262 TCustDB ECustRd 9086.19 1.39146 ECustUpd 1079.47 799.401 0.906976 TFS EFRd 260.317 0.73239 EFWrite 28.9241 260.317 0.457744 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0113953 232.002 232.002 TWebServer EAccess 0.0113953 148.486 148.486 TImgDisk ERdImg 0.170938 0.170938 0.170938 TStoreApp EBrowse 0.010504 87.4616 87.4616 EOrder 0.000891841 1.78026 1.78026 Total: 0.0113959 89.2419 89.2419 TCart EBuy 0.00089184 1.75863 1.75863 TInvDB EInvRd 0.231507 9.00792 9.00792 EInvUpd 0.000891836 0.0191358 0.0282633 0.0473991 Total: 0.232399 9.02705 0.0282633 9.05532 TCustDB ECustRd 0 0 0 ECustUpd 0.00089184 0.0187278 0.0218639 0.0405918 Total: 0.00089184 0.0187278 0.0218639 0.0405918 TFS EFRd 0.329466 6.21142 6.21142 EFWrite 0.00353837 0.0222363 0.0667089 0.0889453 Total: 0.333005 6.23366 0.0667089 6.30037 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 232 EUserBeh 25.2187 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.170938 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0227906 0.0465344 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.15756 0 EOrder 0.0219453 0 Task Total: 0.179506 TCart 0 10 EBuy 0.0267552 0 Processor Total: 0.206261 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.463014 0.879906 EInvUpd 0.00981019 0.439953 4.39953 Task Total: 0.472824 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00535104 0.547058 2.73529 Task Total: 0.00535104 Processor Total: 0.478175 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.988399 15.853 EFWrite 0.0141535 5.28433 15.853 Task Total: 1.00255