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 = 0.735832, $dem_order = 41.7578, $nusers = 88, $order_rate = 0.264168, $req_browse_read = 12.0735, $userThink = 1507.56 Convergence test value: 0.0030179 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 641 MVA Wait(): 85532 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(88) 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 1507.56 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 41.7578 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 0.735832 EAccess EOrder 0.264168 TStoreApp EBrowse EInvRd 12.0735 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 0.031317 TWebServer EAccess 0.0418172 TImgDisk ERdImg 0.420758 TStoreApp EBrowse 0.020403 EOrder 0.0307673 TCart EBuy 0.00622383 TInvDB EInvRd 0.151525 EInvUpd 0.107882 TCustDB ECustRd 0.0050947 ECustUpd 0.0062248 TFS EFRd 0.326705 EFWrite 0.275992 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.381636 EAccess EBrowse 0 EAccess EOrder 0 TStoreApp EBrowse EInvRd 262.685 EOrder EBuy 118.538 TCart EBuy EInvRd 324.408 EBuy EInvUpd 324.408 TInvDB EInvRd EFRd 5.70392 EInvUpd EFRd 5.70392 0 EInvUpd EFWrite 0 3.18863 TCustDB ECustRd EFRd 2.955 ECustUpd EFRd 2.955 0 ECustUpd EFWrite 0 3.60687 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 63.0637 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 4703.73 TWebServer EAccess 3196.38 TImgDisk ERdImg 1 TStoreApp EBrowse 3722.19 EOrder 1645.12 TCart EBuy 1485.63 TInvDB EInvRd 44.3898 EInvUpd 24.4937 37.4354 TCustDB ECustRd 83.9546 ECustUpd 21.8508 26.7969 TFS EFRd 17.2836 EFWrite 5.76122 17.2836 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 6.46464e+007 2.92187 TWebServer EAccess 3.23034e+007 3.16178 TImgDisk ERdImg 1 1 TStoreApp EBrowse 1.58668e+007 1.14523 EOrder 7.66477e+006 2.83206 TCart EBuy 2.37088e+006 1.0742 TInvDB EInvRd 3362.18 1.7063 EInvUpd 1373.42 1657.33 0.790243 TCustDB ECustRd 9573.8 1.3583 ECustUpd 1108.2 956.752 0.872541 TFS EFRd 213.023 0.713107 EFWrite 23.6692 213.023 0.445692 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0187083 87.9989 87.9989 TWebServer EAccess 0.0187083 59.7989 59.7989 TImgDisk ERdImg 0.280615 0.280615 0.280615 TStoreApp EBrowse 0.0137657 51.2386 51.2386 EOrder 0.00494197 8.13014 8.13014 Total: 0.0187077 59.3687 59.3687 TCart EBuy 0.00494196 7.34194 7.34194 TInvDB EInvRd 0.18103 8.03588 8.03588 EInvUpd 0.00494212 0.121051 0.18501 0.306061 Total: 0.185972 8.15693 0.18501 8.34195 TCustDB ECustRd 0 0 0 ECustUpd 0.00494196 0.107986 0.132429 0.240415 Total: 0.00494196 0.107986 0.132429 0.240415 TFS EFRd 0.303566 5.24674 5.24674 EFWrite 0.0210498 0.121273 0.363818 0.485091 Total: 0.324616 5.36801 0.363818 5.73183 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 88 EUserBeh 28.2039 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.280615 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0374167 0.0767884 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.206485 0 EOrder 0.206366 0 Task Total: 0.412851 TCart 0 10 EBuy 0.148259 0.332745 Processor Total: 0.56111 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.36206 1.01217 EInvUpd 0.0543633 0.506083 5.06083 Task Total: 0.416423 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0296517 0.61215 3.06075 Task Total: 0.0296517 Processor Total: 0.446075 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.910699 14.2836 EFWrite 0.0841994 4.76122 14.2836 Task Total: 0.994899