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 = 0.872113, $dem_order = 31.2879, $nusers = 35, $order_rate = 0.127887, $req_browse_read = 11.8362, $userThink = 1708.49 Convergence test value: 0.00840608 Number of iterations: 13 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 78 MVA Step(): 902 MVA Wait(): 90217 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(35) 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 1708.49 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 31.2879 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 0.872113 EAccess EOrder 0.127887 TStoreApp EBrowse EInvRd 11.8362 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 0.0153496 TWebServer EAccess 0.113717 TImgDisk ERdImg 0.887275 TStoreApp EBrowse 0.0351753 EOrder 0.0584277 TCart EBuy 0.00390669 TInvDB EInvRd 0.162372 EInvUpd 0.116869 TCustDB ECustRd 0.00343364 ECustUpd 0.00390708 TFS EFRd 0.329803 EFWrite 0.276402 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1.54832 TWebServer EAccess ERdImg 0.292897 EAccess EBrowse 1.03503 EAccess EOrder 0.603144 TStoreApp EBrowse EInvRd 10.5115 EOrder EBuy 0.374449 TCart EBuy EInvRd 12.6162 EBuy EInvUpd 12.6022 TInvDB EInvRd EFRd 1.95648 EInvUpd EFRd 1.95648 0 EInvUpd EFWrite 0 1.11611 TCustDB ECustRd EFRd 1.13173 ECustUpd EFRd 1.13173 0 ECustUpd EFWrite 0 2.12002 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 43.4053 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 2234.11 TWebServer EAccess 523.833 TImgDisk ERdImg 1 TStoreApp EBrowse 540.694 EOrder 232.066 TCart EBuy 200.94 TInvDB EInvRd 33.9173 EInvUpd 18.682 30.0076 TCustDB ECustRd 68.6339 ECustUpd 17.9541 22.153 TFS EFRd 15.2749 EFWrite 5.09163 15.2749 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 6.07424e+006 1.21698 TWebServer EAccess 802090 2.92306 TImgDisk ERdImg 1 1 TStoreApp EBrowse 340305 1.16403 EOrder 137844 2.55955 TCart EBuy 43473.7 1.0767 TInvDB EInvRd 1977.57 1.71906 EInvUpd 808.89 1018.52 0.770839 TCustDB ECustRd 6430.93 1.3652 ECustUpd 752.068 630.118 0.859263 TFS EFRd 159.647 0.684231 EFWrite 17.7385 159.647 0.427644 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0156678 35.0037 35.0037 TWebServer EAccess 0.0156678 8.20733 8.20733 TImgDisk ERdImg 0.235199 0.235199 0.235199 TStoreApp EBrowse 0.0136747 7.39381 7.39381 EOrder 0.00200525 0.465351 0.465351 Total: 0.0156799 7.85916 7.85916 TCart EBuy 0.00200533 0.402951 0.402951 TInvDB EInvRd 0.167951 5.69645 5.69645 EInvUpd 0.00200537 0.0374643 0.0601763 0.0976406 Total: 0.169957 5.73392 0.0601763 5.79409 TCustDB ECustRd 0 0 0 ECustUpd 0.00200533 0.0360038 0.044424 0.0804278 Total: 0.00200533 0.0360038 0.044424 0.0804278 TFS EFRd 0.314688 4.80683 4.80683 EFWrite 0.00916367 0.0466581 0.139974 0.186632 Total: 0.323852 4.85349 0.139974 4.99346 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 35 EUserBeh 26.7684 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.235199 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0313357 0.0627873 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.20512 0 EOrder 0.0627402 0 Task Total: 0.26786 TCart 0 10 EBuy 0.0601599 0.0136934 Processor Total: 0.32802 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.335903 0.897308 EInvUpd 0.0220591 0.448654 4.48654 Task Total: 0.357962 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.012032 0.545594 2.72797 Task Total: 0.012032 Processor Total: 0.369994 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.944064 12.2738 EFWrite 0.0366547 4.09127 12.2738 Task Total: 0.980719