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 = 0.806243, $dem_order = 66.2097, $nusers = 234, $order_rate = 0.193757, $req_browse_read = 21.0606, $userThink = 2001.24 Convergence test value: 0.00726793 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 595 MVA Wait(): 57952 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(234) 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 2001.24 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 66.2097 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 0.806243 EAccess EOrder 0.193757 TStoreApp EBrowse EInvRd 21.0606 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 0.0113485 TWebServer EAccess 0.01187 TImgDisk ERdImg 0.185055 TStoreApp EBrowse 0.00996576 EOrder 0.0379273 TCart EBuy 0.00326393 TInvDB EInvRd 0.16611 EInvUpd 0.120042 TCustDB ECustRd 0.00292794 ECustUpd 0.00326385 TFS EFRd 0.330805 EFWrite 0.276396 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 5046.88 TWebServer EAccess ERdImg 0.22168 EAccess EBrowse 4873.4 EAccess EOrder 4872.92 TStoreApp EBrowse EInvRd 367.581 EOrder EBuy 6.25099 TCart EBuy EInvRd 475.282 EBuy EInvUpd 475.282 TInvDB EInvRd EFRd 2.9005 EInvUpd EFRd 2.9005 0 EInvUpd EFWrite 0 1.59296 TCustDB ECustRd EFRd 1.47778 ECustUpd EFRd 1.47778 0 ECustUpd EFWrite 0 2.65804 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 51.9674 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 19306.3 TWebServer EAccess 12257.9 TImgDisk ERdImg 1 TStoreApp EBrowse 8617.87 EOrder 2147.6 TCart EBuy 2076.5 TInvDB EInvRd 40.9128 EInvUpd 22.5668 33.7769 TCustDB ECustRd 81.7266 ECustUpd 21.2532 25.3096 TFS EFRd 18.2039 EFWrite 6.06797 18.2039 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 1.06555e+009 2.85872 TWebServer EAccess 3.67915e+008 2.4486 TImgDisk ERdImg 1 1 TStoreApp EBrowse 8.06885e+007 1.08646 EOrder 1.36441e+007 2.95827 TCart EBuy 4.69386e+006 1.0886 TInvDB EInvRd 2921.68 1.74548 EInvUpd 1202.77 1334.23 0.799151 TCustDB ECustRd 9198.11 1.37712 ECustUpd 1080.84 850.839 0.890956 TFS EFRd 240.159 0.724718 EFWrite 26.6843 240.159 0.452949 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0121206 234.004 234.004 TWebServer EAccess 0.0121206 148.573 148.573 TImgDisk ERdImg 0.181807 0.181807 0.181807 TStoreApp EBrowse 0.00977204 84.2142 84.2142 EOrder 0.00234842 5.04348 5.04348 Total: 0.0121205 89.2576 89.2576 TCart EBuy 0.00234841 4.87647 4.87647 TInvDB EInvRd 0.212857 8.70859 8.70859 EInvUpd 0.00234846 0.0529973 0.0793237 0.132321 Total: 0.215206 8.76159 0.0793237 8.84091 TCustDB ECustRd 0 0 0 ECustUpd 0.00234841 0.0499112 0.0594373 0.109349 Total: 0.00234841 0.0499112 0.0594373 0.109349 TFS EFRd 0.320489 5.83415 5.83415 EFWrite 0.00954517 0.0579198 0.173759 0.231679 Total: 0.330034 5.89207 0.173759 6.06583 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 234 EUserBeh 24.2562 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.181807 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0242412 0.0496197 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.146581 0 EOrder 0.155488 0 Task Total: 0.302069 TCart 0 10 EBuy 0.0704522 0.0597768 Processor Total: 0.372521 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.425715 0.924924 EInvUpd 0.0258331 0.462462 4.62462 Task Total: 0.451548 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0140904 0.571525 2.85762 Task Total: 0.0140904 Processor Total: 0.465638 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.961467 15.2039 EFWrite 0.0381807 5.06797 15.2039 Task Total: 0.999647