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 = 0.846842, $dem_order = 32.0091, $nusers = 291, $order_rate = 0.153158, $req_browse_read = 5.70986, $userThink = 2963.71 Convergence test value: 0.00774238 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 1083 MVA Wait(): 243524 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(291) 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 2963.71 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 32.0091 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 0.846842 EAccess EOrder 0.153158 TStoreApp EBrowse EInvRd 5.70986 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 0.0216026 TWebServer EAccess 0.0182167 TImgDisk ERdImg 0.263472 TStoreApp EBrowse 0.0400026 EOrder 0.0437829 TCart EBuy 0.0010374 TInvDB EInvRd 0.178964 EInvUpd 0.130908 TCustDB ECustRd 0.00100079 ECustUpd 0.00103741 TFS EFRd 0.333571 EFWrite 0.275943 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1250.29 TWebServer EAccess ERdImg 1.03083 EAccess EBrowse 1694.43 EAccess EOrder 1699.9 TStoreApp EBrowse EInvRd 340.928 EOrder EBuy 2994.19 TCart EBuy EInvRd 421.575 EBuy EInvUpd 421.574 TInvDB EInvRd EFRd 5.94995 EInvUpd EFRd 5.94995 0 EInvUpd EFWrite 0 3.3308 TCustDB ECustRd EFRd 3.07479 ECustUpd EFRd 3.07479 0 ECustUpd EFWrite 0 3.68469 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 64.4012 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 8569.62 TWebServer EAccess 4355.69 TImgDisk ERdImg 1 TStoreApp EBrowse 2216.56 EOrder 4901.86 TCart EBuy 1875.8 TInvDB EInvRd 44.7145 EInvUpd 24.6736 37.775 TCustDB ECustRd 84.1533 ECustUpd 21.9041 26.9241 TFS EFRd 17.2131 EFWrite 5.73768 17.2131 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 1.5556e+008 2.11825 TWebServer EAccess 4.92241e+007 2.59456 TImgDisk ERdImg 1 1 TStoreApp EBrowse 6.44593e+006 1.31198 EOrder 6.05159e+007 2.51853 TCart EBuy 3.8105e+006 1.08296 TInvDB EInvRd 3407.19 1.70411 EInvUpd 1391.2 1689.72 0.790016 TCustDB ECustRd 9609.57 1.35694 ECustUpd 1111.18 966.221 0.871322 TFS EFRd 211.013 0.712187 EFWrite 23.4459 211.013 0.445117 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0339569 290.998 290.998 TWebServer EAccess 0.0339569 147.906 147.906 TImgDisk ERdImg 0.509326 0.509326 0.509326 TStoreApp EBrowse 0.0287546 63.7363 63.7363 EOrder 0.0052005 25.4921 25.4921 Total: 0.0339551 89.2284 89.2284 TCart EBuy 0.00520202 9.75792 9.75792 TInvDB EInvRd 0.179773 8.03846 8.03846 EInvUpd 0.00519934 0.128286 0.196405 0.324691 Total: 0.184972 8.16675 0.196405 8.36315 TCustDB ECustRd 0 0 0 ECustUpd 0.00520202 0.113946 0.14006 0.254005 Total: 0.00520202 0.113946 0.14006 0.254005 TFS EFRd 0.301979 5.19798 5.19798 EFWrite 0.0221494 0.127086 0.381258 0.508345 Total: 0.324128 5.32506 0.381258 5.70632 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 291 EUserBeh 100.638 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.509326 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0679138 0.145569 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.431319 0 EOrder 0.166463 0 Task Total: 0.597782 TCart 0 10 EBuy 0.156061 0.782475 Processor Total: 0.753843 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.359546 1.02073 EInvUpd 0.0571927 0.510365 5.10365 Task Total: 0.416739 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0312121 0.615782 3.07891 Task Total: 0.0312121 Processor Total: 0.447951 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.905936 14.2131 EFWrite 0.0885975 4.73771 14.2131 Task Total: 0.994534