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 = 0.978655, $dem_order = 38.3976, $nusers = 79, $order_rate = 0.0213445, $req_browse_read = 8.74045, $userThink = 281.083 Convergence test value: 0.00827844 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 542 MVA Wait(): 49196 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(79) 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 281.083 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 38.3976 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 0.978655 EAccess EOrder 0.0213445 TStoreApp EBrowse EInvRd 8.74045 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 0.021109 TWebServer EAccess 0.0582017 TImgDisk ERdImg 0.587005 TStoreApp EBrowse 0.0408181 EOrder 0.0131653 TCart EBuy 0.00910276 TInvDB EInvRd 0.13954 EInvUpd 0.0980673 TCustDB ECustRd 0.00682974 ECustUpd 0.00910413 TFS EFRd 0.322575 EFWrite 0.274813 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.666965 EAccess EBrowse 0 EAccess EOrder 0 TStoreApp EBrowse EInvRd 258.891 EOrder EBuy 0 TCart EBuy EInvRd 341.957 EBuy EInvUpd 341.957 TInvDB EInvRd EFRd 0.770411 EInvUpd EFRd 0.770411 0 EInvUpd EFWrite 0 0.417671 TCustDB ECustRd EFRd 0.399297 ECustUpd EFRd 0.399297 0 ECustUpd EFWrite 0 1.98132 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 46.4618 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 2899.4 TWebServer EAccess 2618.59 TImgDisk ERdImg 1 TStoreApp EBrowse 2613.67 EOrder 1571.91 TCart EBuy 1534.59 TInvDB EInvRd 38.4722 EInvUpd 21.2139 31.2384 TCustDB ECustRd 80.6296 ECustUpd 20.9489 24.3424 TFS EFRd 19.0081 EFWrite 6.33604 19.0081 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 3.67352e+007 4.36986 TWebServer EAccess 2.14801e+007 3.13258 TImgDisk ERdImg 1 1 TStoreApp EBrowse 8.21318e+006 1.20229 EOrder 7.3679e+006 2.98187 TCart EBuy 2.54178e+006 1.07933 TInvDB EInvRd 2661.54 1.79821 EInvUpd 1106.64 1139.11 0.816265 TCustDB ECustRd 9069.41 1.39505 ECustUpd 1080.38 788.68 0.91116 TFS EFRd 265.26 0.734165 EFWrite 29.4733 265.26 0.458853 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0272481 79.0029 79.0029 TWebServer EAccess 0.0272481 71.3515 71.3515 TImgDisk ERdImg 0.408661 0.408661 0.408661 TStoreApp EBrowse 0.0266626 69.6871 69.6871 EOrder 0.000581512 0.914084 0.914084 Total: 0.0272441 70.6012 70.6012 TCart EBuy 0.000581511 0.892378 0.892378 TInvDB EInvRd 0.234794 9.03304 9.03304 EInvUpd 0.000581521 0.0123363 0.0181658 0.0305021 Total: 0.235376 9.04538 0.0181658 9.06355 TCustDB ECustRd 0 0 0 ECustUpd 0.000581511 0.012182 0.0141553 0.0263374 Total: 0.000581511 0.012182 0.0141553 0.0263374 TFS EFRd 0.331335 6.29805 6.29805 EFWrite 0.00229942 0.0145692 0.0437077 0.0582769 Total: 0.333634 6.31262 0.0437077 6.35633 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 79 EUserBeh 7.65896 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.408661 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0544961 0.113636 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.399938 0 EOrder 0.0223287 0 Task Total: 0.422267 TCart 0 10 EBuy 0.0174453 0.121671 Processor Total: 0.439712 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.469589 0.870826 EInvUpd 0.00639673 0.435413 4.35413 Task Total: 0.475985 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00348906 0.541529 2.70764 Task Total: 0.00348906 Processor Total: 0.479474 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.994005 16.0081 EFWrite 0.00919769 5.33604 16.0081 Task Total: 1.0032