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 = 0.824204, $dem_order = 10.8659, $nusers = 241, $order_rate = 0.175796, $req_browse_read = 19.4809, $userThink = 2319.18 Convergence test value: 0.00683481 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 696 MVA Wait(): 67658 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(241) 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 2319.18 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 10.8659 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 0.824204 EAccess EOrder 0.175796 TStoreApp EBrowse EInvRd 19.4809 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 0.0165095 TWebServer EAccess 0.0198335 TImgDisk ERdImg 0.281128 TStoreApp EBrowse 0.0123066 EOrder 0.0453138 TCart EBuy 0.000429286 TInvDB EInvRd 0.182989 EInvUpd 0.134344 TCustDB ECustRd 0.000422868 ECustUpd 0.000429287 TFS EFRd 0.334305 EFWrite 0.275669 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 4845.9 TWebServer EAccess ERdImg 0.239224 EAccess EBrowse 4582.16 EAccess EOrder 4582.08 TStoreApp EBrowse EInvRd 366.654 EOrder EBuy 4.58025 TCart EBuy EInvRd 474.583 EBuy EInvUpd 474.583 TInvDB EInvRd EFRd 2.80746 EInvUpd EFRd 2.80746 0 EInvUpd EFWrite 0 1.54099 TCustDB ECustRd EFRd 1.43059 ECustUpd EFRd 1.43059 0 ECustUpd EFWrite 0 2.6282 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 51.6871 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 18689.6 TWebServer EAccess 11524.4 TImgDisk ERdImg 1 TStoreApp EBrowse 7952.44 EOrder 2088.53 TCart EBuy 2073.23 TInvDB EInvRd 40.8026 EInvUpd 22.5058 33.6616 TCustDB ECustRd 81.6709 ECustUpd 21.2379 25.2654 TFS EFRd 18.2371 EFWrite 6.07904 18.2371 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 9.66527e+008 2.76702 TWebServer EAccess 3.25769e+008 2.45286 TImgDisk ERdImg 1 1 TStoreApp EBrowse 6.91509e+007 1.09345 EOrder 1.33585e+007 3.06252 TCart EBuy 4.67928e+006 1.08864 TInvDB EInvRd 2909 1.7473 EInvUpd 1197.97 1324.84 0.799682 TCustDB ECustRd 9190.26 1.37782 ECustUpd 1080.51 847.877 0.891716 TFS EFRd 241.17 0.725122 EFWrite 26.7967 241.17 0.453201 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.012895 241.002 241.002 TWebServer EAccess 0.012895 148.607 148.607 TImgDisk ERdImg 0.19343 0.19343 0.19343 TStoreApp EBrowse 0.0106284 84.5216 84.5216 EOrder 0.00226694 4.73457 4.73457 Total: 0.0128953 89.2562 89.2562 TCart EBuy 0.00226695 4.6999 4.6999 TInvDB EInvRd 0.213854 8.72581 8.72581 EInvUpd 0.00226696 0.0510196 0.0763095 0.127329 Total: 0.216121 8.77683 0.0763095 8.85314 TCustDB ECustRd 0 0 0 ECustUpd 0.00226695 0.0481452 0.0572754 0.105421 Total: 0.00226695 0.0481452 0.0572754 0.105421 TFS EFRd 0.321 5.85411 5.85411 EFWrite 0.00920186 0.0559385 0.167815 0.223754 Total: 0.330202 5.91005 0.167815 6.07787 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 241 EUserBeh 29.9057 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.19343 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0257899 0.0528753 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.159426 0 EOrder 0.0246323 0 Task Total: 0.184058 TCart 0 10 EBuy 0.0680084 0 Processor Total: 0.252067 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.427708 0.922311 EInvUpd 0.0249365 0.461155 4.61155 Task Total: 0.452645 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0136017 0.570185 2.85092 Task Total: 0.0136017 Processor Total: 0.466247 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.963 15.2371 EFWrite 0.0368074 5.07904 15.2371 Task Total: 0.999807