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 = 0.829958, $dem_order = 8.9866, $nusers = 188, $order_rate = 0.170042, $req_browse_read = 4.41095, $userThink = 1314.41 Convergence test value: 0.00793877 Number of iterations: 20 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 120 MVA Step(): 2112 MVA Wait(): 413952 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(188) 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 1314.41 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 8.9866 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 0.829958 EAccess EOrder 0.170042 TStoreApp EBrowse EInvRd 4.41095 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 0.0730063 TWebServer EAccess 0.13277 TImgDisk ERdImg 0.9354 TStoreApp EBrowse 0.0899814 EOrder 0.0204023 TCart EBuy 0.0145261 TInvDB EInvRd 0.121826 EInvUpd 0.0859252 TCustDB ECustRd 0.00987523 ECustUpd 0.0145264 TFS EFRd 0.308197 EFWrite 0.270234 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 31.5016 TWebServer EAccess ERdImg 1.4048 EAccess EBrowse 1149.71 EAccess EOrder 1146.58 TStoreApp EBrowse EInvRd 271.354 EOrder EBuy 4976.86 TCart EBuy EInvRd 324.454 EBuy EInvUpd 324.454 TInvDB EInvRd EFRd 7.42014 EInvUpd EFRd 7.42014 0 EInvUpd EFWrite 0 4.19338 TCustDB ECustRd EFRd 3.91874 ECustUpd EFRd 3.91874 0 ECustUpd EFWrite 0 4.23847 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 73.6647 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 4811.71 TWebServer EAccess 3465.84 TImgDisk ERdImg 1 TStoreApp EBrowse 1417.6 EOrder 6479.84 TCart EBuy 1494.43 TInvDB EInvRd 46.6681 EInvUpd 25.7558 39.8639 TCustDB ECustRd 85.8639 ECustUpd 22.3548 27.869 TFS EFRd 16.7975 EFWrite 5.59916 16.7975 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 7.95286e+007 3.43498 TWebServer EAccess 4.41075e+007 3.67194 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.79664e+006 1.39166 EOrder 1.11035e+008 2.64443 TCart EBuy 2.39595e+006 1.07281 TInvDB EInvRd 3690.04 1.6943 EInvUpd 1503.75 1897.45 0.789884 TCustDB ECustRd 9948.41 1.34937 ECustUpd 1143.01 1039.84 0.865381 TFS EFRd 199.369 0.706593 EFWrite 22.1521 199.369 0.441621 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.039071 187.998 187.998 TWebServer EAccess 0.039071 135.414 135.414 TImgDisk ERdImg 0.586106 0.586106 0.586106 TStoreApp EBrowse 0.0324295 45.972 45.972 EOrder 0.00664419 43.0533 43.0533 Total: 0.0390737 89.0253 89.0253 TCart EBuy 0.00664271 9.92709 9.92709 TInvDB EInvRd 0.16297 7.6055 7.6055 EInvUpd 0.00664493 0.171145 0.264893 0.436038 Total: 0.169615 7.77664 0.264893 8.04154 TCustDB ECustRd 0 0 0 ECustUpd 0.00664271 0.148496 0.185126 0.333622 Total: 0.00664271 0.148496 0.185126 0.333622 TFS EFRd 0.291868 4.90265 4.90265 EFWrite 0.0291017 0.162945 0.488835 0.65178 Total: 0.32097 5.0656 0.488835 5.55443 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 188 EUserBeh 51.3552 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.586106 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.078142 0.169361 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.486443 0 EOrder 0.0597087 0 Task Total: 0.546152 TCart 0 10 EBuy 0.199281 0.805469 Processor Total: 0.745433 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.32594 1.07652 EInvUpd 0.0730942 0.538258 5.38258 Task Total: 0.399034 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0398563 0.638796 3.19398 Task Total: 0.0398563 Processor Total: 0.43889 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.875605 13.7974 EFWrite 0.116407 4.59914 13.7974 Task Total: 0.992011