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 = 0.940938, $dem_order = 44.9659, $nusers = 237, $order_rate = 0.059062, $req_browse_read = 13.7015, $userThink = 2986.65 Convergence test value: 0.00832836 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 676 MVA Wait(): 62170 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(237) 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 2986.65 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 44.9659 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 0.940938 EAccess EOrder 0.059062 TStoreApp EBrowse EInvRd 13.7015 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 0.0286149 TWebServer EAccess 0.0315359 TImgDisk ERdImg 0.475527 TStoreApp EBrowse 0.0155425 EOrder 0.0401739 TCart EBuy 0.00302331 TInvDB EInvRd 0.167386 EInvUpd 0.121113 TCustDB ECustRd 0.00273286 ECustUpd 0.00302326 TFS EFRd 0.331109 EFWrite 0.276382 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 2103.68 TWebServer EAccess ERdImg 0.355852 EAccess EBrowse 3301.22 EAccess EOrder 3301.48 TStoreApp EBrowse EInvRd 344.544 EOrder EBuy 0 TCart EBuy EInvRd 452.718 EBuy EInvUpd 452.718 TInvDB EInvRd EFRd 1.34539 EInvUpd EFRd 1.34539 0 EInvUpd EFWrite 0 0.731856 TCustDB ECustRd EFRd 0.691328 ECustUpd EFRd 0.691328 0 ECustUpd EFWrite 0 2.16344 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 47.7785 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 13493.9 TWebServer EAccess 8403.22 TImgDisk ERdImg 1 TStoreApp EBrowse 5271.33 EOrder 2023.74 TCart EBuy 1979.81 TInvDB EInvRd 39.114 EInvUpd 21.5698 31.9027 TCustDB ECustRd 80.8944 ECustUpd 21.0232 24.5966 TFS EFRd 18.7823 EFWrite 6.26076 18.7823 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 4.74133e+008 2.60389 TWebServer EAccess 1.77224e+008 2.50975 TImgDisk ERdImg 1 1 TStoreApp EBrowse 3.14678e+007 1.13247 EOrder 1.22797e+007 2.99831 TCart EBuy 4.26478e+006 1.08806 TInvDB EInvRd 2725.67 1.78159 EInvUpd 1129.83 1187.79 0.810551 TCustDB ECustRd 9095.02 1.38985 ECustUpd 1079.21 804.479 0.905109 TFS EFRd 258.08 0.731574 EFWrite 28.6755 258.08 0.457234 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0175639 237.007 237.007 TWebServer EAccess 0.0175639 147.594 147.594 TImgDisk ERdImg 0.263474 0.263474 0.263474 TStoreApp EBrowse 0.0165275 87.122 87.122 EOrder 0.00103742 2.09947 2.09947 Total: 0.0175649 89.2214 89.2214 TCart EBuy 0.00103742 2.05388 2.05388 TInvDB EInvRd 0.229553 8.97872 8.97872 EInvUpd 0.0010374 0.0223765 0.0330959 0.0554724 Total: 0.23059 9.0011 0.0330959 9.0342 TCustDB ECustRd 0 0 0 ECustUpd 0.00103742 0.0218098 0.0255169 0.0473267 Total: 0.00103742 0.0218098 0.0255169 0.0473267 TFS EFRd 0.328582 6.17152 6.17152 EFWrite 0.00412617 0.0258329 0.0774988 0.103332 Total: 0.332708 6.19735 0.0774988 6.27485 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 237 EUserBeh 52.4574 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.263474 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0351279 0.0726308 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.247912 0 EOrder 0.0466485 0 Task Total: 0.294561 TCart 0 10 EBuy 0.0311225 0.0324143 Processor Total: 0.325684 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.459105 0.884246 EInvUpd 0.0114114 0.442123 4.42123 Task Total: 0.470517 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0062245 0.54964 2.7482 Task Total: 0.0062245 Processor Total: 0.476741 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.985747 15.7823 EFWrite 0.0165047 5.26075 15.7823 Task Total: 1.00225