DynamicRight-SizinginTCP MikeFisk §? Wu-chunFeng §? m?******@ ******@ §LosAlamosNationalLaboratory ?puterScience&Engineering,UniversityofCalifornia,SanDiego ?puter&InformationScience,TheOhioStateUniversity Abstract—Withthewidespreadarrivalofbandwidth-intensiveap- plicationssuchasbulk-datatransfer,multi-mediawebstreaming putationalgridsforhigh-working performanceoverthewide-po- ,operatingsystemsarestilltuned foryesterday’, apainstakingprocessofmanuallytuningsystembuffersmustbeun- dertakentomakeTCP?ow-controlscaletomeettheneedsoftoday’s bandwidth-,weproposeanoperatingsys- temtechniquecalleddynamicright-sizingthateliminatestheneedfor , ?cient, moretransparent,andappliestoawidersetofapplications,including thosethatrequirestrict?ow-controlsemanticsbecauseofperformance disparitiesbetweenthesenderandreceiver. Keywords—Wide-working,TCP,- putationalgrid,high-working,auto-tuning NTRODUCTION Inpreviouswork[4],webroughtuptwofundamen- talproblemswithTCPinhigh-putational gridsandotherbandwidth-intensiveapplications:(1)?ow- controladaptationand(2)congestion- ordertoaddresstheformerproblem 1,working researchershavecontinuedthepracticeofmanuallyopti- workpipefull[14],[10], eptableperformanceovert
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