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 = 0.879006, $dem_order = 4.26883, $nusers = 120, $order_rate = 0.120994, $req_browse_read = 11.4898, $userThink = 324.93 Convergence test value: 0.00685418 Number of iterations: 7 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 42 MVA Step(): 473 MVA Wait(): 43899 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(120) 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 324.93 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 4.26883 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 0.879006 EAccess EOrder 0.120994 TStoreApp EBrowse EInvRd 11.4898 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 0.0129464 TWebServer EAccess 0.0216026 TImgDisk ERdImg 0.322156 TStoreApp EBrowse 0.0190863 EOrder 0.0426334 TCart EBuy 0.0022227 TInvDB EInvRd 0.17181 EInvUpd 0.12484 TCustDB ECustRd 0.00206151 ECustUpd 0.00222266 TFS EFRd 0.332113 EFWrite 0.276279 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.430661 EAccess EBrowse 1231.4 EAccess EOrder 1231.18 TStoreApp EBrowse EInvRd 363.946 EOrder EBuy 7.94986 TCart EBuy EInvRd 469.951 EBuy EInvUpd 469.951 TInvDB EInvRd EFRd 3.01282 EInvUpd EFRd 3.01282 0 EInvUpd EFWrite 0 1.65579 TCustDB ECustRd EFRd 1.53496 ECustUpd EFRd 1.53496 0 ECustUpd EFWrite 0 2.69425 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 52.3126 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 5933.21 TWebServer EAccess 5608.31 TImgDisk ERdImg 1 TStoreApp EBrowse 4668.01 EOrder 2067.77 TCart EBuy 2055.63 TInvDB EInvRd 41.0463 EInvUpd 22.6408 33.9167 TCustDB ECustRd 81.7957 ECustUpd 21.2721 25.3636 TFS EFRd 18.164 EFWrite 6.05466 18.164 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 1.5091e+008 4.28684 TWebServer EAccess 8.42447e+007 2.67842 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.52302e+007 1.15787 EOrder 1.31325e+007 3.07143 TCart EBuy 4.59835e+006 1.0882 TInvDB EInvRd 2937.14 1.74332 EInvUpd 1208.63 1345.68 0.798532 TCustDB ECustRd 9207.97 1.37627 ECustUpd 1081.28 854.463 0.890047 TFS EFRd 238.946 0.724232 EFWrite 26.5496 238.946 0.452645 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.020225 119.999 119.999 TWebServer EAccess 0.020225 113.428 113.428 TImgDisk ERdImg 0.303375 0.303375 0.303375 TStoreApp EBrowse 0.0177779 82.9875 82.9875 EOrder 0.0024471 5.06005 5.06005 Total: 0.020225 88.0476 88.0476 TCart EBuy 0.0024471 5.03035 5.03035 TInvDB EInvRd 0.211617 8.68608 8.68608 EInvUpd 0.00244717 0.055406 0.0829998 0.138406 Total: 0.214064 8.74149 0.0829998 8.82449 TCustDB ECustRd 0 0 0 ECustUpd 0.0024471 0.052055 0.0620672 0.114122 Total: 0.0024471 0.052055 0.0620672 0.114122 TFS EFRd 0.319868 5.81007 5.81007 EFWrite 0.00996305 0.0603229 0.180969 0.241292 Total: 0.329831 5.87039 0.180969 6.05136 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 120 EUserBeh 6.57173 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.303375 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0404501 0.0838584 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.266669 0 EOrder 0.0104463 0 Task Total: 0.277115 TCart 0 10 EBuy 0.0734131 0.0409366 Processor Total: 0.350528 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.423233 0.928111 EInvUpd 0.0269189 0.464056 4.64056 Task Total: 0.450152 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0146826 0.573149 2.86574 Task Total: 0.0146826 Processor Total: 0.464835 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.959603 15.164 EFWrite 0.0398522 5.05466 15.164 Task Total: 0.999455