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 = 0.894413, $dem_order = 67.5321, $nusers = 57, $order_rate = 0.105587, $req_browse_read = 3.9214, $userThink = 2688.54 Convergence test value: 0.00758766 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 532 MVA Wait(): 33857 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(57) 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 2688.54 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 67.5321 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 0.894413 EAccess EOrder 0.105587 TStoreApp EBrowse EInvRd 3.9214 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 0.00277444 TWebServer EAccess 0.0144123 TImgDisk ERdImg 0.211743 TStoreApp EBrowse 0.0577476 EOrder 0.0431518 TCart EBuy 0.000821329 TInvDB EInvRd 0.180363 EInvUpd 0.132101 TCustDB ECustRd 0.000798186 ECustUpd 0.00082133 TFS EFRd 0.333833 EFWrite 0.275854 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0.462948 TWebServer EAccess ERdImg 0.427563 EAccess EBrowse 0.108682 EAccess EOrder 0.342842 TStoreApp EBrowse EInvRd 0.658252 EOrder EBuy 0.0993765 TCart EBuy EInvRd 0.735514 EBuy EInvUpd 0.73239 TInvDB EInvRd EFRd 0.219087 EInvUpd EFRd 0.219087 0 EInvUpd EFWrite 0 0.172872 TCustDB ECustRd EFRd 0.127451 ECustUpd EFRd 0.127451 0 ECustUpd EFWrite 0 0.434082 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 17.0834 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 2784.21 TWebServer EAccess 95.0143 TImgDisk ERdImg 1 TStoreApp EBrowse 63.1686 EOrder 140.485 TCart EBuy 74.6511 TInvDB EInvRd 11.7262 EInvUpd 6.38174 16.5228 TCustDB ECustRd 23.38 ECustUpd 6.30807 10.2453 TFS EFRd 4.96714 EFWrite 1.65571 4.96714 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 7.77792e+006 1.00337 TWebServer EAccess 17814.6 1.97332 TImgDisk ERdImg 1 1 TStoreApp EBrowse 5412.32 1.35638 EOrder 30772.2 1.55918 TCart EBuy 5336.88 0.957668 TInvDB EInvRd 208.594 1.51701 EInvUpd 80.3408 273.849 0.675139 TCustDB ECustRd 701.898 1.28406 ECustUpd 78.4111 113.378 0.699922 TFS EFRd 12.8698 0.521628 EFWrite 1.42998 12.8698 0.326017 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.020474 57.0038 57.0038 TWebServer EAccess 0.020474 1.94532 1.94532 TImgDisk ERdImg 0.307166 0.307166 0.307166 TStoreApp EBrowse 0.0183156 1.15697 1.15697 EOrder 0.00216218 0.303755 0.303755 Total: 0.0204778 1.46073 1.46073 TCart EBuy 0.00216221 0.161412 0.161412 TInvDB EInvRd 0.0783132 0.918313 0.918313 EInvUpd 0.00216225 0.0137989 0.0357264 0.0495253 Total: 0.0804755 0.932112 0.0357264 0.967839 TCustDB ECustRd 0 0 0 ECustUpd 0.00216221 0.0136394 0.0221525 0.035792 Total: 0.00216221 0.0136394 0.0221525 0.035792 TFS EFRd 0.145405 0.722249 0.722249 EFWrite 0.00973505 0.0161184 0.0483553 0.0644738 Total: 0.155141 0.738368 0.0483553 0.786723 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 57 EUserBeh 55.0452 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.307166 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.040948 0.0837878 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.274734 0 EOrder 0.146017 0 Task Total: 0.42075 TCart 0 10 EBuy 0.0648664 0.140888 Processor Total: 0.485617 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.156626 0.390175 EInvUpd 0.0237848 0.195087 1.95087 Task Total: 0.180411 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.0129733 0.213065 1.06532 Task Total: 0.0129733 Processor Total: 0.193385 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.436216 1.96719 EFWrite 0.0389402 0.65573 1.96719 Task Total: 0.475157