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 = 0.978129, $dem_order = 28.4183, $nusers = 285, $order_rate = 0.0218708, $req_browse_read = 12.9857, $userThink = 2370.56 Convergence test value: 0.00470453 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 685 MVA Wait(): 64053 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(285) 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 2370.56 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 28.4183 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 0.978129 EAccess EOrder 0.0218708 TStoreApp EBrowse EInvRd 12.9857 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 0.0511965 TWebServer EAccess 0.0288059 TImgDisk ERdImg 0.280616 TStoreApp EBrowse 0.0162671 EOrder 0.0284594 TCart EBuy 0.00494212 TInvDB EInvRd 0.157694 EInvUpd 0.113033 TCustDB ECustRd 0.00420777 ECustUpd 0.00494196 TFS EFRd 0.328601 EFWrite 0.276295 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 4913.17 TWebServer EAccess ERdImg 0.386417 EAccess EBrowse 3186.7 EAccess EOrder 3186.69 TStoreApp EBrowse EInvRd 333.936 EOrder EBuy 0 TCart EBuy EInvRd 441.882 EBuy EInvUpd 441.882 TInvDB EInvRd EFRd 0.543858 EInvUpd EFRd 0.543858 0 EInvUpd EFWrite 0 0.294418 TCustDB ECustRd EFRd 0.282139 ECustUpd EFRd 0.282139 0 ECustUpd EFWrite 0 1.90835 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 45.9719 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 15277.6 TWebServer EAccess 7993.8 TImgDisk ERdImg 1 TStoreApp EBrowse 4847.41 EOrder 1961.08 TCart EBuy 1933.29 TInvDB EInvRd 38.223 EInvUpd 21.0758 30.9807 TCustDB ECustRd 80.5249 ECustUpd 20.9196 24.2413 TFS EFRd 19.0991 EFWrite 6.36636 19.0991 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 5.86198e+008 2.5115 TWebServer EAccess 1.62089e+008 2.53657 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.67783e+007 1.13963 EOrder 1.16491e+007 3.02902 TCart EBuy 4.0657e+006 1.08778 TInvDB EInvRd 2637.54 1.8053 EInvUpd 1098.08 1120.69 0.818771 TCustDB ECustRd 9059.82 1.3972 ECustUpd 1080.98 782.487 0.913688 TFS EFRd 268.18 0.735194 EFWrite 29.7978 268.18 0.459496 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0186548 285.002 285.002 TWebServer EAccess 0.0186548 149.123 149.123 TImgDisk ERdImg 0.2798 0.2798 0.2798 TStoreApp EBrowse 0.0182454 88.4429 88.4429 EOrder 0.000407964 0.80005 0.80005 Total: 0.0186533 89.243 89.243 TCart EBuy 0.000407963 0.788713 0.788713 TInvDB EInvRd 0.238151 9.10285 9.10285 EInvUpd 0.000407964 0.00859817 0.012639 0.0212372 Total: 0.238559 9.11145 0.012639 9.12409 TCustDB ECustRd 0 0 0 ECustUpd 0.000407963 0.00853443 0.00988955 0.018424 Total: 0.000407963 0.00853443 0.00988955 0.018424 TFS EFRd 0.332384 6.34823 6.34823 EFWrite 0.00160512 0.0102188 0.0306563 0.0408751 Total: 0.333989 6.35845 0.0306563 6.38911 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 285 EUserBeh 44.2225 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.2798 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0373097 0.0773109 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.273681 0 EOrder 0.0115936 0 Task Total: 0.285274 TCart 0 10 EBuy 0.0122389 0.0221145 Processor Total: 0.297513 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.476302 0.865751 EInvUpd 0.0044876 0.432876 4.32876 Task Total: 0.480789 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00244778 0.538369 2.69185 Task Total: 0.00244778 Processor Total: 0.483237 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.997153 16.0991 EFWrite 0.00642048 5.36636 16.0991 Task Total: 1.00357