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 = 0.904635, $dem_order = 21.6791, $nusers = 233, $order_rate = 0.0953653, $req_browse_read = 6.82401, $userThink = 2057.39 Convergence test value: 0.00773761 Number of iterations: 11 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 66 MVA Step(): 1168 MVA Wait(): 229005 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(233) 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 2057.39 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 21.6791 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 0.904635 EAccess EOrder 0.0953653 TStoreApp EBrowse EInvRd 6.82401 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 0.0963741 TWebServer EAccess 0.234152 TImgDisk ERdImg 0.333735 TStoreApp EBrowse 0.147781 EOrder 0.175663 TCart EBuy 0.00493974 TInvDB EInvRd 0.155166 EInvUpd 0.114218 TCustDB ECustRd 0.00440017 ECustUpd 0.0049389 TFS EFRd 0.313772 EFWrite 0.276264 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 683.009 TWebServer EAccess ERdImg 0.899269 EAccess EBrowse 1769 EAccess EOrder 1769.09 TStoreApp EBrowse EInvRd 377.843 EOrder EBuy 54.9061 TCart EBuy EInvRd 484.174 EBuy EInvUpd 484.174 TInvDB EInvRd EFRd 3.65511 EInvUpd EFRd 3.65511 0 EInvUpd EFWrite 0 2.01682 TCustDB ECustRd EFRd 1.86223 ECustUpd EFRd 1.86223 0 ECustUpd EFWrite 0 2.90224 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 54.4215 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 7353.34 TWebServer EAccess 4612.74 TImgDisk ERdImg 1 TStoreApp EBrowse 2878.4 EOrder 2191.61 TCart EBuy 2115.57 TInvDB EInvRd 41.8195 EInvUpd 23.0693 34.7277 TCustDB ECustRd 82.2119 ECustUpd 21.3855 25.6776 TFS EFRd 17.9408 EFWrite 5.98025 17.9408 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 1.35459e+008 2.50517 TWebServer EAccess 5.28395e+007 2.48336 TImgDisk ERdImg 1 1 TStoreApp EBrowse 1.04819e+007 1.26514 EOrder 1.43894e+007 2.99581 TCart EBuy 4.87228e+006 1.08862 TInvDB EInvRd 3029.06 1.73201 EInvUpd 1243.69 1413.52 0.795452 TCustDB ECustRd 9270.23 1.37158 ECustUpd 1084.61 875.882 0.885125 TFS EFRd 232.226 0.721488 EFWrite 25.8029 232.226 0.45093 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0316871 233.006 233.006 TWebServer EAccess 0.0316871 146.165 146.165 TImgDisk ERdImg 0.475532 0.475532 0.475532 TStoreApp EBrowse 0.0286788 82.549 82.549 EOrder 0.00302328 6.62586 6.62586 Total: 0.0317021 89.1749 89.1749 TCart EBuy 0.00302329 6.39599 6.39599 TInvDB EInvRd 0.204778 8.56372 8.56372 EInvUpd 0.00302331 0.0697458 0.104993 0.174738 Total: 0.207802 8.63347 0.104993 8.73846 TCustDB ECustRd 0 0 0 ECustUpd 0.00302329 0.0646545 0.0776309 0.142285 Total: 0.00302329 0.0646545 0.0776309 0.142285 TFS EFRd 0.316227 5.67336 5.67336 EFWrite 0.0124214 0.0742833 0.22285 0.297133 Total: 0.328649 5.74764 0.22285 5.97049 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 233 EUserBeh 65.1929 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.475532 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0633743 0.135152 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.430182 0 EOrder 0.0655419 0 Task Total: 0.495724 TCart 0 10 EBuy 0.0906987 0.347473 Processor Total: 0.586423 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.409556 0.947013 EInvUpd 0.0332564 0.473506 4.73506 Task Total: 0.442813 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0181397 0.58253 2.91265 Task Total: 0.0181397 Processor Total: 0.460953 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.948682 14.9407 EFWrite 0.0496857 4.98025 14.9407 Task Total: 0.998367