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 = 0.882654, $dem_order = 53.8932, $nusers = 30, $order_rate = 0.117346, $req_browse_read = 9.90269, $userThink = 1524.3 Convergence test value: 0.00857784 Number of iterations: 13 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 78 MVA Step(): 882 MVA Wait(): 70681 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(30) 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 1524.3 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 53.8932 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 0.882654 EAccess EOrder 0.117346 TStoreApp EBrowse EInvRd 9.90269 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 0.00753017 TWebServer EAccess 0.0404801 TImgDisk ERdImg 0.398108 TStoreApp EBrowse 0.0222908 EOrder 0.0225149 TCart EBuy 0.00656593 TInvDB EInvRd 0.150326 EInvUpd 0.106943 TCustDB ECustRd 0.00532141 ECustUpd 0.0065661 TFS EFRd 0.326395 EFWrite 0.275913 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1.15082 TWebServer EAccess ERdImg 0.316789 EAccess EBrowse 0.736864 EAccess EOrder 0.451398 TStoreApp EBrowse EInvRd 1.86757 EOrder EBuy 0.270952 TCart EBuy EInvRd 2.12694 EBuy EInvUpd 2.10909 TInvDB EInvRd EFRd 0.811684 EInvUpd EFRd 0.811684 0 EInvUpd EFWrite 0 0.507109 TCustDB ECustRd EFRd 0.47375 ECustUpd EFRd 0.47375 0 ECustUpd EFWrite 0 1.12739 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 29.4676 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 1790.32 TWebServer EAccess 264.649 TImgDisk ERdImg 1 TStoreApp EBrowse 251.599 EOrder 169.792 TCart EBuy 116.821 TInvDB EInvRd 22.0515 EInvUpd 12.0966 23.3975 TCustDB ECustRd 44.4813 ECustUpd 11.8282 16.1425 TFS EFRd 9.89422 EFWrite 3.29807 9.89422 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 3.46195e+006 1.08009 TWebServer EAccess 184759 2.63793 TImgDisk ERdImg 1 1 TStoreApp EBrowse 76826.5 1.21365 EOrder 57251.7 1.98589 TCart EBuy 14662.7 1.07443 TInvDB EInvRd 794.175 1.6332 EInvUpd 317.663 577.686 0.710691 TCustDB ECustRd 2635.42 1.33197 ECustUpd 303.81 307.189 0.780968 TFS EFRd 56.5086 0.577233 EFWrite 6.27873 56.5086 0.360771 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0167588 30.0036 30.0036 TWebServer EAccess 0.0167588 4.43521 4.43521 TImgDisk ERdImg 0.251562 0.251562 0.251562 TStoreApp EBrowse 0.0148028 3.72438 3.72438 EOrder 0.00196799 0.334149 0.334149 Total: 0.0167708 4.05853 4.05853 TCart EBuy 0.00196806 0.22991 0.22991 TInvDB EInvRd 0.152556 3.36409 3.36409 EInvUpd 0.00196806 0.0238068 0.0460476 0.0698544 Total: 0.154524 3.3879 0.0460476 3.43395 TCustDB ECustRd 0 0 0 ECustUpd 0.00196806 0.0232786 0.0317694 0.0550481 Total: 0.00196806 0.0232786 0.0317694 0.0550481 TFS EFRd 0.281171 2.78197 2.78197 EFWrite 0.00890429 0.029367 0.0881011 0.117468 Total: 0.290076 2.81134 0.0881011 2.89944 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 30 EUserBeh 25.5455 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.251562 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0335177 0.0669489 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.222042 0 EOrder 0.106062 0 Task Total: 0.328104 TCart 0 10 EBuy 0.0590418 0.049383 Processor Total: 0.387146 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.305112 0.776432 EInvUpd 0.0216487 0.388216 3.88216 Task Total: 0.326761 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0118084 0.457871 2.28936 Task Total: 0.0118084 Processor Total: 0.338569 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.843514 6.89265 EFWrite 0.0356172 2.29755 6.89265 Task Total: 0.879131