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 = 0.819647, $dem_order = 31.0187, $nusers = 90, $order_rate = 0.180353, $req_browse_read = 18.159, $userThink = 1011.89 Convergence test value: 0.0086845 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 537 MVA Wait(): 53336 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(90) 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 1011.89 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 31.0187 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 0.819647 EAccess EOrder 0.180353 TStoreApp EBrowse EInvRd 18.159 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 0.00444284 TWebServer EAccess 0.0153048 TImgDisk ERdImg 0.220047 TStoreApp EBrowse 0.012659 EOrder 0.0432996 TCart EBuy 0.00124339 TInvDB EInvRd 0.17766 EInvUpd 0.129799 TCustDB ECustRd 0.00119118 ECustUpd 0.00124339 TFS EFRd 0.33332 EFWrite 0.276019 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0.970482 TWebServer EAccess ERdImg 0.253471 EAccess EBrowse 0 EAccess EOrder 0.338984 TStoreApp EBrowse EInvRd 309.171 EOrder EBuy 2.20371 TCart EBuy EInvRd 398.821 EBuy EInvUpd 398.821 TInvDB EInvRd EFRd 3.03677 EInvUpd EFRd 3.03677 0 EInvUpd EFWrite 0 1.66926 TCustDB ECustRd EFRd 1.54922 ECustUpd EFRd 1.54922 0 ECustUpd EFWrite 0 2.70335 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 52.386 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 6584.04 TWebServer EAccess 5571.36 TImgDisk ERdImg 1 TStoreApp EBrowse 6374.84 EOrder 1803.92 TCart EBuy 1771.19 TInvDB EInvRd 41.0742 EInvUpd 22.6563 33.9465 TCustDB ECustRd 81.8175 ECustUpd 21.2779 25.3777 TFS EFRd 18.1552 EFWrite 6.05172 18.1552 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 1.74123e+008 4.01671 TWebServer EAccess 9.96727e+007 3.2111 TImgDisk ERdImg 1 1 TStoreApp EBrowse 4.46556e+007 1.09885 EOrder 9.79675e+006 3.01056 TCart EBuy 3.39783e+006 1.08311 TInvDB EInvRd 2940.37 1.74286 EInvUpd 1209.84 1348.13 0.798399 TCustDB ECustRd 9211.5 1.37606 ECustUpd 1081.52 855.428 0.88984 TFS EFRd 238.679 0.724124 EFWrite 26.5198 238.679 0.452577 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.013669 89.9976 89.9976 TWebServer EAccess 0.013669 76.1551 76.1551 TImgDisk ERdImg 0.205069 0.205069 0.205069 TStoreApp EBrowse 0.0112056 71.4341 71.4341 EOrder 0.00246566 4.44785 4.44785 Total: 0.0136713 75.882 75.882 TCart EBuy 0.00246569 4.36719 4.36719 TInvDB EInvRd 0.210878 8.66164 8.66164 EInvUpd 0.0024657 0.0558636 0.0837018 0.139565 Total: 0.213343 8.71751 0.0837018 8.80121 TCustDB ECustRd 0 0 0 ECustUpd 0.00246569 0.0524646 0.0625733 0.115038 Total: 0.00246569 0.0524646 0.0625733 0.115038 TFS EFRd 0.319732 5.80478 5.80478 EFWrite 0.0100535 0.0608413 0.182524 0.243365 Total: 0.329785 5.86562 0.182524 6.04815 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 90 EUserBeh 13.8316 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.205069 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0273381 0.055563 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.168084 0 EOrder 0.0764816 0 Task Total: 0.244566 TCart 0 10 EBuy 0.0739706 0.0178875 Processor Total: 0.318537 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.421756 0.92882 EInvUpd 0.0271227 0.46441 4.6441 Task Total: 0.448878 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0147941 0.573504 2.86752 Task Total: 0.0147941 Processor Total: 0.463672 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.959195 15.1552 EFWrite 0.0402142 5.05172 15.1552 Task Total: 0.999409