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 = 0.946924, $dem_order = 32.3827, $nusers = 85, $order_rate = 0.0530762, $req_browse_read = 17.9477, $userThink = 1434.57 Convergence test value: 0.00255597 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 528 MVA Wait(): 52032 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(85) 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 1434.57 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 32.3827 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 0.946924 EAccess EOrder 0.0530762 TStoreApp EBrowse EInvRd 17.9477 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 0.0296973 TWebServer EAccess 0.046562 TImgDisk ERdImg 0.242069 TStoreApp EBrowse 0.0241496 EOrder 0.0389065 TCart EBuy 0.00187804 TInvDB EInvRd 0.173493 EInvUpd 0.126222 TCustDB ECustRd 0.00176139 ECustUpd 0.00187799 TFS EFRd 0.332441 EFWrite 0.276231 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.250909 EAccess EBrowse 0 EAccess EOrder 0 TStoreApp EBrowse EInvRd 238.841 EOrder EBuy 0 TCart EBuy EInvRd 315.283 EBuy EInvUpd 315.283 TInvDB EInvRd EFRd 0.94862 EInvUpd EFRd 0.94862 0 EInvUpd EFWrite 0 0.514835 TCustDB ECustRd EFRd 0.490691 ECustUpd EFRd 0.490691 0 ECustUpd EFWrite 0 2.03828 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 46.8586 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 6263.21 TWebServer EAccess 4828.54 TImgDisk ERdImg 1 TStoreApp EBrowse 4995.42 EOrder 1460.29 TCart EBuy 1428.46 TInvDB EInvRd 38.6696 EInvUpd 21.3234 31.4427 TCustDB ECustRd 80.7121 ECustUpd 20.9721 24.4216 TFS EFRd 18.9373 EFWrite 6.31244 18.9373 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 1.34962e+008 3.44047 TWebServer EAccess 7.24173e+007 3.10607 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.74084e+007 1.09835 EOrder 6.36936e+006 2.9869 TCart EBuy 2.1965e+006 1.07645 TInvDB EInvRd 2680.92 1.79285 EInvUpd 1113.6 1153.89 0.814396 TCustDB ECustRd 9077.18 1.39339 ECustUpd 1079.97 793.568 0.909227 TFS EFRd 262.998 0.733358 EFWrite 29.222 262.998 0.458348 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0135713 84.9996 84.9996 TWebServer EAccess 0.0135713 65.5294 65.5294 TImgDisk ERdImg 0.203574 0.203574 0.203574 TStoreApp EBrowse 0.0128512 64.1974 64.1974 EOrder 0.000720327 1.05188 1.05188 Total: 0.0135716 65.2492 65.2492 TCart EBuy 0.000720328 1.02896 1.02896 TInvDB EInvRd 0.232808 9.0026 9.0026 EInvUpd 0.000720325 0.0153598 0.022649 0.0380087 Total: 0.233528 9.01796 0.022649 9.04061 TCustDB ECustRd 0 0 0 ECustUpd 0.000720328 0.0151068 0.0175915 0.0326983 Total: 0.000720328 0.0151068 0.0175915 0.0326983 TFS EFRd 0.330495 6.25869 6.25869 EFWrite 0.00285566 0.0180262 0.0540786 0.0721048 Total: 0.333351 6.27672 0.0540786 6.3308 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 85 EUserBeh 19.4689 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.203574 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0271425 0.0551083 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.192769 0 EOrder 0.0233262 0 Task Total: 0.216095 TCart 0 10 EBuy 0.0216098 0 Processor Total: 0.237705 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.465616 0.8749 EInvUpd 0.00792357 0.43745 4.3745 Task Total: 0.47354 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00432197 0.544027 2.72014 Task Total: 0.00432197 Processor Total: 0.477862 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.991485 15.9373 EFWrite 0.0114226 5.31244 15.9373 Task Total: 1.00291