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 = 0.732692, $dem_order = 66.8216, $nusers = 36, $order_rate = 0.267308, $req_browse_read = 12.8176, $userThink = 1030.92 Convergence test value: 0.00537894 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 754 MVA Wait(): 118907 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(36) 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 1030.92 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 66.8216 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 0.732692 EAccess EOrder 0.267308 TStoreApp EBrowse EInvRd 12.8176 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 0.0083584 TWebServer EAccess 0.0454194 TImgDisk ERdImg 0.418106 TStoreApp EBrowse 0.0164844 EOrder 0.0349407 TCart EBuy 0.00383007 TInvDB EInvRd 0.163191 EInvUpd 0.117618 TCustDB ECustRd 0.00337494 ECustUpd 0.00382964 TFS EFRd 0.330083 EFWrite 0.276397 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.302095 EAccess EBrowse 0.575404 EAccess EOrder 0 TStoreApp EBrowse EInvRd 65.6465 EOrder EBuy 0.188347 TCart EBuy EInvRd 79.4208 EBuy EInvUpd 79.421 TInvDB EInvRd EFRd 5.29005 EInvUpd EFRd 5.29005 0 EInvUpd EFWrite 0 2.95912 TCustDB ECustRd EFRd 2.93285 ECustUpd EFRd 2.93285 0 ECustUpd EFWrite 0 3.59815 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 60.7925 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 2243.29 TWebServer EAccess 1212.73 TImgDisk ERdImg 1 TStoreApp EBrowse 1417.48 EOrder 569.202 TCart EBuy 503.613 TInvDB EInvRd 43.7915 EInvUpd 24.1619 36.882 TCustDB ECustRd 84.2153 ECustUpd 21.9119 26.8175 TFS EFRd 17.371 EFWrite 5.79034 17.371 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 1.10498e+007 2.19576 TWebServer EAccess 4.5437e+006 3.08943 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.25984e+006 1.12472 EOrder 839112 2.58992 TCart EBuy 261217 1.02993 TInvDB EInvRd 3278.93 1.70983 EInvUpd 1340.33 1604.8 0.790352 TCustDB ECustRd 9637.74 1.35892 ECustUpd 1115.9 959.115 0.873855 TFS EFRd 215.526 0.71425 EFWrite 23.9474 215.526 0.446406 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0160468 35.9977 35.9977 TWebServer EAccess 0.0160468 19.4605 19.4605 TImgDisk ERdImg 0.240677 0.240677 0.240677 TStoreApp EBrowse 0.0117561 16.664 16.664 EOrder 0.00428899 2.4413 2.4413 Total: 0.0160451 19.1053 19.1053 TCart EBuy 0.00428902 2.16 2.16 TInvDB EInvRd 0.163586 7.16368 7.16368 EInvUpd 0.00428941 0.10364 0.158202 0.261842 Total: 0.167875 7.26733 0.158202 7.42553 TCustDB ECustRd 0 0 0 ECustUpd 0.00428902 0.0939807 0.115021 0.209001 Total: 0.00428902 0.0939807 0.115021 0.209001 TFS EFRd 0.30591 5.31397 5.31397 EFWrite 0.0194141 0.112414 0.337242 0.449657 Total: 0.325325 5.42639 0.337242 5.76363 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 36 EUserBeh 16.5429 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.240677 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0320937 0.0643512 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.176342 0 EOrder 0.286597 0 Task Total: 0.462939 TCart 0 10 EBuy 0.128671 0.372014 Processor Total: 0.59161 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.327172 1.00167 EInvUpd 0.0471835 0.500833 5.00833 Task Total: 0.374356 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0257341 0.608091 3.04045 Task Total: 0.0257341 Processor Total: 0.40009 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.917731 14.371 EFWrite 0.0776564 4.79034 14.371 Task Total: 0.995388