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 = 0.918892, $dem_order = 6.07232, $nusers = 74, $order_rate = 0.0811076, $req_browse_read = 8.97379, $userThink = 1192.71 Convergence test value: 0.00444117 Number of iterations: 11 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 66 MVA Step(): 997 MVA Wait(): 191129 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(74) 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 1192.71 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 6.07232 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 0.918892 EAccess EOrder 0.0811076 TStoreApp EBrowse EInvRd 8.97379 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 0.0464145 TWebServer EAccess 0.048393 TImgDisk ERdImg 0.183265 TStoreApp EBrowse 0.030222 EOrder 0.0314571 TCart EBuy 0.000441376 TInvDB EInvRd 0.171153 EInvUpd 0.12954 TCustDB ECustRd 0.000437497 ECustUpd 0.000441383 TFS EFRd 0.311424 EFWrite 0.277255 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.581155 EAccess EBrowse 0 EAccess EOrder 0 TStoreApp EBrowse EInvRd 158.693 EOrder EBuy 0 TCart EBuy EInvRd 205.424 EBuy EInvUpd 205.424 TInvDB EInvRd EFRd 2.55507 EInvUpd EFRd 2.55507 0 EInvUpd EFWrite 0 1.40087 TCustDB ECustRd EFRd 1.31696 ECustUpd EFRd 1.31696 0 ECustUpd EFWrite 0 2.55704 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 50.9383 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 2955.5 TWebServer EAccess 1763.14 TImgDisk ERdImg 1 TStoreApp EBrowse 1802.19 EOrder 1001.62 TCart EBuy 995.651 TInvDB EInvRd 40.501 EInvUpd 22.3386 33.3514 TCustDB ECustRd 81.5707 ECustUpd 21.2093 25.1644 TFS EFRd 18.3257 EFWrite 6.10857 18.3257 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 2.14444e+007 2.45499 TWebServer EAccess 9.60709e+006 3.09042 TImgDisk ERdImg 1 1 TStoreApp EBrowse 3.85568e+006 1.18714 EOrder 3.04457e+006 3.03473 TCart EBuy 1.04982e+006 1.05901 TInvDB EInvRd 2874.56 1.75243 EInvUpd 1184.97 1299.78 0.801177 TCustDB ECustRd 9179.53 1.3796 ECustUpd 1080.71 841.261 0.893722 TFS EFRd 243.877 0.726191 EFWrite 27.0975 243.877 0.453869 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0250384 74.001 74.001 TWebServer EAccess 0.0250384 44.1462 44.1462 TImgDisk ERdImg 0.37552 0.37552 0.37552 TStoreApp EBrowse 0.0230042 41.4579 41.4579 EOrder 0.0020305 2.03379 2.03379 Total: 0.0250347 43.4917 43.4917 TCart EBuy 0.00203049 2.02166 2.02166 TInvDB EInvRd 0.212535 8.60786 8.60786 EInvUpd 0.00203054 0.0453593 0.0677213 0.113081 Total: 0.214565 8.65322 0.0677213 8.72094 TCustDB ECustRd 0 0 0 ECustUpd 0.00203049 0.0430652 0.0510961 0.0941613 Total: 0.00203049 0.0430652 0.0510961 0.0941613 TFS EFRd 0.322353 5.90734 5.90734 EFWrite 0.00829129 0.0506479 0.151944 0.202592 Total: 0.330644 5.95799 0.151944 6.10993 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 74 EUserBeh 29.8636 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.37552 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0500768 0.103848 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.345063 0 EOrder 0.0123299 0 Task Total: 0.357393 TCart 0 10 EBuy 0.0609146 0.104776 Processor Total: 0.418307 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.425069 0.915559 EInvUpd 0.0223359 0.457779 4.57779 Task Total: 0.447405 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0121829 0.566641 2.83321 Task Total: 0.0121829 Processor Total: 0.459588 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.967058 15.3257 EFWrite 0.0331652 5.10857 15.3257 Task Total: 1.00022