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 = 0.778094, $dem_order = 74.6764, $nusers = 101, $order_rate = 0.221906, $req_browse_read = 6.52705, $userThink = 2298.31 Convergence test value: 0.00743893 Number of iterations: 8 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 48 MVA Step(): 738 MVA Wait(): 130554 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(101) 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 2298.31 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 74.6764 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 0.778094 EAccess EOrder 0.221906 TStoreApp EBrowse EInvRd 6.52705 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 0.011033 TWebServer EAccess 0.0250035 TImgDisk ERdImg 0.37095 TStoreApp EBrowse 0.0390989 EOrder 0.0147045 TCart EBuy 0.00599717 TInvDB EInvRd 0.15288 EInvUpd 0.109056 TCustDB ECustRd 0.00494611 ECustUpd 0.00599875 TFS EFRd 0.327201 EFWrite 0.276078 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 0.70559 EAccess EBrowse 0 EAccess EOrder 0.427326 TStoreApp EBrowse EInvRd 157.757 EOrder EBuy 11.5503 TCart EBuy EInvRd 185.733 EBuy EInvUpd 185.732 TInvDB EInvRd EFRd 7.08937 EInvUpd EFRd 7.08937 0 EInvUpd EFWrite 0 4.00184 TCustDB ECustRd EFRd 3.79716 ECustUpd EFRd 3.79716 0 ECustUpd EFWrite 0 4.15983 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 71.1834 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 3600.73 TWebServer EAccess 1302.34 TImgDisk ERdImg 1 TStoreApp EBrowse 1346.04 EOrder 1023.9 TCart EBuy 938.512 TInvDB EInvRd 46.1972 EInvUpd 25.4948 39.3909 TCustDB ECustRd 85.6803 ECustUpd 22.3046 27.7408 TFS EFRd 16.8728 EFWrite 5.62425 16.8728 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 1.98601e+007 1.53179 TWebServer EAccess 5.19676e+006 3.06397 TImgDisk ERdImg 1 1 TStoreApp EBrowse 2.2694e+006 1.25255 EOrder 2.87729e+006 2.74456 TCart EBuy 926210 1.05155 TInvDB EInvRd 3619.25 1.69585 EInvUpd 1475.34 1848.85 0.789566 TCustDB ECustRd 9913.42 1.3504 ECustUpd 1139.96 1029.79 0.866329 TFS EFRd 201.454 0.707627 EFWrite 22.3838 201.454 0.442267 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0280499 101 101 TWebServer EAccess 0.0280499 36.5305 36.5305 TImgDisk ERdImg 0.420759 0.420759 0.420759 TStoreApp EBrowse 0.021826 29.3786 29.3786 EOrder 0.00622461 6.37335 6.37335 Total: 0.0280506 35.752 35.752 TCart EBuy 0.00622481 5.84206 5.84206 TInvDB EInvRd 0.161135 7.44397 7.44397 EInvUpd 0.00622383 0.158675 0.245162 0.403838 Total: 0.167358 7.60264 0.245162 7.8478 TCustDB ECustRd 0 0 0 ECustUpd 0.00622481 0.138842 0.172681 0.311523 Total: 0.00622481 0.138842 0.172681 0.311523 TFS EFRd 0.294056 4.96154 4.96154 EFWrite 0.027585 0.155145 0.465435 0.62058 Total: 0.321641 5.11669 0.465435 5.58212 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 101 EUserBeh 64.4673 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.420759 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0560998 0.117558 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.32739 0 EOrder 0.464831 0 Task Total: 0.792221 TCart 0 10 EBuy 0.186744 1.52176 Processor Total: 0.978966 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.322269 1.06511 EInvUpd 0.0684621 0.532554 5.32554 Task Total: 0.390731 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0373489 0.634487 3.17243 Task Total: 0.0373489 Processor Total: 0.42808 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.882169 13.8728 EFWrite 0.11034 4.62426 13.8728 Task Total: 0.992509