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 = 0.963875, $dem_order = 31.317, $nusers = 38, $order_rate = 0.0361252, $req_browse_read = 14.3374, $userThink = 2710.39 Convergence test value: 0.00915507 Number of iterations: 16 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 96 MVA Step(): 1056 MVA Wait(): 84392 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(38) 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 2710.39 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 31.317 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 0.963875 EAccess EOrder 0.0361252 TStoreApp EBrowse EInvRd 14.3374 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 0.00909418 TWebServer EAccess 0.0786541 TImgDisk ERdImg 0.398943 TStoreApp EBrowse 0.0318214 EOrder 0.0675621 TCart EBuy 0.00046715 TInvDB EInvRd 0.182702 EInvUpd 0.134095 TCustDB ECustRd 0.000459559 ECustUpd 0.00046715 TFS EFRd 0.334253 EFWrite 0.275692 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1.75309 TWebServer EAccess ERdImg 0.215694 EAccess EBrowse 1.34828 EAccess EOrder 0.474056 TStoreApp EBrowse EInvRd 1.23271 EOrder EBuy 0.355093 TCart EBuy EInvRd 1.6099 EBuy EInvUpd 1.58248 TInvDB EInvRd EFRd 0.2813 EInvUpd EFRd 0.2813 0 EInvUpd EFWrite 0 0.163097 TCustDB ECustRd EFRd 0.176406 ECustUpd EFRd 0.176406 0 ECustUpd EFWrite 0 1.10061 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 31.5459 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 3112.26 TWebServer EAccess 399.863 TImgDisk ERdImg 1 TStoreApp EBrowse 386.418 EOrder 155.273 TCart EBuy 124.033 TInvDB EInvRd 24.6786 EInvUpd 13.5553 24.2618 TCustDB ECustRd 51.2191 ECustUpd 13.5401 17.5476 TFS EFRd 11.8746 EFWrite 3.95821 11.8746 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 1.03068e+007 1.06407 TWebServer EAccess 455575 2.84929 TImgDisk ERdImg 1 1 TStoreApp EBrowse 173641 1.16289 EOrder 56708.4 2.35209 TCart EBuy 17127.4 1.11331 TInvDB EInvRd 1031.57 1.69379 EInvUpd 418.808 632.771 0.735302 TCustDB ECustRd 3555.25 1.35521 ECustUpd 416.094 372.894 0.81638 TFS EFRd 87.7155 0.622066 EFWrite 9.74616 87.7155 0.388791 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0122108 38.0031 38.0031 TWebServer EAccess 0.0122108 4.88264 4.88264 TImgDisk ERdImg 0.183276 0.183276 0.183276 TStoreApp EBrowse 0.011777 4.55085 4.55085 EOrder 0.000441392 0.0685364 0.0685364 Total: 0.0122184 4.61939 4.61939 TCart EBuy 0.000441395 0.0547476 0.0547476 TInvDB EInvRd 0.170255 4.20166 4.20166 EInvUpd 0.000441376 0.00598297 0.0107086 0.0166916 Total: 0.170697 4.20764 0.0107086 4.21835 TCustDB ECustRd 0 0 0 ECustUpd 0.000441395 0.00597654 0.00774542 0.013722 Total: 0.000441395 0.00597654 0.00774542 0.013722 TFS EFRd 0.308912 3.66822 3.66822 EFWrite 0.00199192 0.00788442 0.0236532 0.0315377 Total: 0.310904 3.6761 0.0236532 3.69976 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 38 EUserBeh 33.096 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.183276 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0244215 0.0487163 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.176655 0 EOrder 0.0138231 0 Task Total: 0.190478 TCart 0 10 EBuy 0.0132418 0 Processor Total: 0.20372 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.340511 0.791059 EInvUpd 0.00485514 0.395529 3.95529 Task Total: 0.345366 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00264837 0.48533 2.42665 Task Total: 0.00264837 Processor Total: 0.348014 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.926737 8.87217 EFWrite 0.00796766 2.95739 8.87217 Task Total: 0.934705