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 = 0.972974, $dem_order = 63.8918, $nusers = 182, $order_rate = 0.0270258, $req_browse_read = 6.42534, $userThink = 2119.29 Convergence test value: 0.00376479 Number of iterations: 10 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 60 MVA Step(): 787 MVA Wait(): 72502 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(182) 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 2119.29 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 63.8918 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 0.972974 EAccess EOrder 0.0270258 TStoreApp EBrowse EInvRd 6.42534 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 0.00984337 TWebServer EAccess 0.0119957 TImgDisk ERdImg 0.19343 TStoreApp EBrowse 0.0334516 EOrder 0.0409379 TCart EBuy 0.00226696 TInvDB EInvRd 0.171558 EInvUpd 0.124628 TCustDB ECustRd 0.00209957 ECustUpd 0.00226696 TFS EFRd 0.332058 EFWrite 0.276287 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 0 TWebServer EAccess ERdImg 1.18095 EAccess EBrowse 453.858 EAccess EOrder 453.765 TStoreApp EBrowse EInvRd 333.678 EOrder EBuy 0 TCart EBuy EInvRd 438.754 EBuy EInvUpd 438.754 TInvDB EInvRd EFRd 1.27727 EInvUpd EFRd 1.27727 0 EInvUpd EFWrite 0 0.69453 TCustDB ECustRd EFRd 0.65683 ECustUpd EFRd 0.65683 0 ECustUpd EFWrite 0 2.1419 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 47.6169 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 5005.83 TWebServer EAccess 2886.57 TImgDisk ERdImg 1 TStoreApp EBrowse 2409.3 EOrder 1985.61 TCart EBuy 1924.01 TInvDB EInvRd 39.0373 EInvUpd 21.5273 31.8233 TCustDB ECustRd 80.862 ECustUpd 21.0142 24.5663 TFS EFRd 18.8087 EFWrite 6.26956 18.8087 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 5.70404e+007 2.2763 TWebServer EAccess 2.36554e+007 2.83901 TImgDisk ERdImg 1 1 TStoreApp EBrowse 7.4303e+006 1.28004 EOrder 1.16682e+007 2.95947 TCart EBuy 4.02397e+006 1.08702 TInvDB EInvRd 2717.83 1.78346 EInvUpd 1126.97 1181.88 0.811181 TCustDB ECustRd 9091.67 1.39045 ECustUpd 1079.3 802.575 0.905801 TFS EFRd 258.914 0.73188 EFWrite 28.7682 258.914 0.457425 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.036358 182.002 182.002 TWebServer EAccess 0.036358 104.95 104.95 TImgDisk ERdImg 0.545358 0.545358 0.545358 TStoreApp EBrowse 0.0353746 85.2283 85.2283 EOrder 0.000982584 1.95103 1.95103 Total: 0.0363572 87.1793 87.1793 TCart EBuy 0.000982573 1.89048 1.89048 TInvDB EInvRd 0.230223 8.98727 8.98727 EInvUpd 0.000982561 0.0211518 0.0312683 0.0524202 Total: 0.231205 9.00842 0.0312683 9.03969 TCustDB ECustRd 0 0 0 ECustUpd 0.000982573 0.020648 0.0241382 0.0447861 Total: 0.000982573 0.020648 0.0241382 0.0447861 TFS EFRd 0.328915 6.18646 6.18646 EFWrite 0.00390495 0.0244823 0.073447 0.0979293 Total: 0.33282 6.21095 0.073447 6.28439 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 182 EUserBeh 77.0534 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.545358 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0727161 0.156328 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.530619 0 EOrder 0.062779 0 Task Total: 0.593398 TCart 0 10 EBuy 0.0294772 0.374976 Processor Total: 0.622876 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.460445 0.882614 EInvUpd 0.0108082 0.441307 4.41307 Task Total: 0.471253 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00589544 0.548673 2.74337 Task Total: 0.00589544 Processor Total: 0.477149 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.986746 15.8087 EFWrite 0.0156198 5.26956 15.8087 Task Total: 1.00237