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 = 0.752609, $dem_order = 25.1714, $nusers = 101, $order_rate = 0.247391, $req_browse_read = 7.19971, $userThink = 1345.38 Convergence test value: 0.00707598 Number of iterations: 16 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 96 MVA Step(): 1826 MVA Wait(): 525664 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(101) 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 1345.38 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 25.1714 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 0.752609 EAccess EOrder 0.247391 TStoreApp EBrowse EInvRd 7.19971 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 0.0058056 TWebServer EAccess 0.0130837 TImgDisk ERdImg 0.193866 TStoreApp EBrowse 0.029136 EOrder 0.0402386 TCart EBuy 0.00289801 TInvDB EInvRd 0.16806 EInvUpd 0.12168 TCustDB ECustRd 0.00263009 ECustUpd 0.002898 TFS EFRd 0.331268 EFWrite 0.276372 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.643822 EAccess EBrowse 0 EAccess EOrder 0.880295 TStoreApp EBrowse EInvRd 262.943 EOrder EBuy 1532.42 TCart EBuy EInvRd 314.526 EBuy EInvUpd 314.525 TInvDB EInvRd EFRd 7.34538 EInvUpd EFRd 7.34538 0 EInvUpd EFWrite 0 4.14954 TCustDB ECustRd EFRd 3.87774 ECustUpd EFRd 3.87774 0 ECustUpd EFWrite 0 4.21169 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 73.1388 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 3805.11 TWebServer EAccess 2460.12 TImgDisk ERdImg 1 TStoreApp EBrowse 2243.13 EOrder 3011.36 TCart EBuy 1454.07 TInvDB EInvRd 46.5658 EInvUpd 25.6991 39.7567 TCustDB ECustRd 85.7789 ECustUpd 22.3324 27.8233 TFS EFRd 16.8168 EFWrite 5.60559 16.8168 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 4.02328e+007 2.77873 TWebServer EAccess 1.97306e+007 3.26008 TImgDisk ERdImg 1 1 TStoreApp EBrowse 6.24561e+006 1.24127 EOrder 2.26016e+007 2.49238 TCart EBuy 2.26642e+006 1.07193 TInvDB EInvRd 3674.62 1.69464 EInvUpd 1497.57 1886.39 0.789821 TCustDB ECustRd 9930.61 1.34963 ECustUpd 1141.28 1036.15 0.86557 TFS EFRd 199.904 0.706866 EFWrite 22.2116 199.904 0.441792 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0265436 101.001 101.001 TWebServer EAccess 0.0265436 65.3004 65.3004 TImgDisk ERdImg 0.398103 0.398103 0.398103 TStoreApp EBrowse 0.0199744 44.8051 44.8051 EOrder 0.00656581 19.772 19.772 Total: 0.0265402 64.5771 64.5771 TCart EBuy 0.00656621 9.54774 9.54774 TInvDB EInvRd 0.163512 7.61407 7.61407 EInvUpd 0.00656593 0.168739 0.26104 0.429779 Total: 0.170078 7.78281 0.26104 8.04385 TCustDB ECustRd 0 0 0 ECustUpd 0.00656621 0.146639 0.182694 0.329333 Total: 0.00656621 0.146639 0.182694 0.329333 TFS EFRd 0.292395 4.91714 4.91714 EFWrite 0.0287464 0.16114 0.48342 0.644561 Total: 0.321142 5.07828 0.48342 5.5617 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 101 EUserBeh 35.7113 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.398103 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0530872 0.110881 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.299616 0 EOrder 0.165271 0 Task Total: 0.464886 TCart 0 10 EBuy 0.196986 0.582265 Processor Total: 0.661873 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.327024 1.07376 EInvUpd 0.0722253 0.53688 5.3688 Task Total: 0.399249 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0393972 0.637708 3.18854 Task Total: 0.0393972 Processor Total: 0.438647 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.877186 13.8168 EFWrite 0.114985 4.6056 13.8168 Task Total: 0.992171