head-oof-line block cheyyal

computer networkingil head-oof-line blocking (hole blocking) ennathu oru aadya paakkat oru kyoovil paakkattukalude oru varii pidichuvekkumbol sambhavikkunna oru prakadana-parimithappedutthunna prathibhaasamaan. inputt buffer cheytha network svichukal, outtu-oof-oordar delivari, HTTP pipeliningile onniladhikam abhyarthanakal enniva udaaharanangalil ulppedunnu.
network svichukal.
oru swichil buffer cheytha inputt porttukal, oru switch fabric, buffer cheytha outtputtu porttukal enniva adangiyirikkaam. phastt-inn phastt-outtu (phipho) inputt bufferukal upayogikkukayaanenkil, ettavum pazhaya paakkat maathrame forwadinginu labhyamaakoo. ettavum pazhaya paakkat athinte taargett outtputtu thirakkilayathinaal kaimaran kazhiyunnillengil, aduthideyulla varavu forwade cheyyaan kazhiyilla. outtputtu tharkkamundenkil outtputtu thirakkilayirikkaam.
hole block cheyyaathe, puthuthayi varunnavare kudungiya ettavum pazhaya paakkattin chuttum athath lakshyasthaanangalilekk ayaykkaan kazhiyum. hole blocking inputt-buffered sisttangalil prakadanatthe tharamthaazhthunna efakttukal srishtikkum.
eee prathibhasam svichukalude throoput parimithappedutthunnu. phipho inputt bufferukalkku, ekeekrithamaayi vitharanam cheyyappedunna lakshyasthaanangalilekkulal sthira valuppathilulla cellukalude oru lalithamaaya model, linkukalude ennam valuthaakumbol throoput motham 58.6% aayi parimithappedutthunnu. 
eee parimiti marikadakkaanulla oru maarggam vertual outtputtu cukal upayogikkuka ennathaanu.
inputt buffering ulla svichukalkku maathrame hole blocking anubhavappedukayulloo. mathiyaya aantharika bandwidth ullathinaal, inputt buffering anaavasyamaanu; ellah buffering aouttputtukalil kaikaaryam cheyyukayum hole blocking ozhivaakkukayum cheiyunnu. cheruthum idatharavumaaya itharnettu svichukalil eee noow-inputt-buffering architecture saadhaaranamaanu.
outtu oof oordar delivari.
sequence cheytha paakkattukal oordar illaathaakumbozhaanu outtu-oof-oordar delivari sambhavikkunnath. paakkattukal edukkunna vyathyastha vazhikal kondo paakkattukal idukayum reesett cheyyukayum cheiyunnathil ninno ithu sambhavikkam. hole blocking paakkat reordering ganyamaayi vardhippikkum.
nashtatthilaaya oru shringalayiludaneelam dhaaraalam samaprayakkaarkkidayil sandeshangal vishwasaneeyamaayi prakshepanam cheiyunnathu budhimuttulla oru prasnamaanu. aattomik broadcast algorithangal kendreekritha servarukalude parajaya prashnatthinte orotta pooyint pariharikkunnuvenkilum, aaa algorithangal oru head-oof-line blocking prashnam avatharippikkunnu. oru gossip protocol upayogikkunna kramarahithamaya algorithamaaya bimodal multicast algoritam, chila sandeshangal kramaatheethamaayi sweekarikkaan anuvadikkunnathiloode head-oof-line blocking ozhivaakkunnu.
HTTP.
brouseril anuvadaneeyamaaya samanthara abhyarthanakalude ennam upayogikkumbol, thudarnnulla abhyarthanakal poortthiyaakunnathuvare kaathirikkendathundu ennathaanu HTTP/1.1-leeii hole blockinginte oru roopam. aaplikkeshan leyarile hole blocking illaathaakkunna abhyarthana multiplexingiloode HTTP/2 eee prashnam abhisambodhana cheiyunnu, pakshe hole ippozhum transport (tcp) leyaril nilanilkkunnu.
vishwasaneeyamaaya baitt streamukalil.
vishwasaneeyamaaya baitt streamukalil head-oof-line blocking sambhavikkaam paakkattukal reorder cheiyukayo nashtappedukayo cheythaal veendum traansmit cheyyendathundenkil (angane kramaatheethamaayi athukayum cheiyunnu), streaminte thudarchayaaya pilkkala bhaagangalil ninnulla daatta thudarchayaayi munbathe bhaagangalkk munbu labhichekkaam; ennirunnaalum, munbathe daatta sweekarikkunnathuvare pinneedulla daatta saadhaaranayaayi upayogikkaan kazhiyilla, ithu network latensi undaakkunnu. onniladhikam swatantra uyarnna thalatthilulla sandeshangal encapsulate cheyyukayum orotta vishwasaneeyamaaya baitt streamilake multiplexes cheyyukayum cheythaal, head-oof-line blocking pinneedu ayacha poornnamaayi labhicha sandeshathinte prosessinginu kaaranamakum, athu neratthe ayacha sandeshathinte delivericaayi kaathirikkunnathinaayi ayachu. ithu badhikkunnu, udaaharanathinu, onniladhikam abhyarthana-prathikarana jodikale orotta streamilake frame cheiyunna HTTP/2; aaplikkeshan-lair framing design stream transportinu pakaram dattagram upayogikkunnathum ulla HTTP/3 eee prashnam ozhivaakkunnu. head-oof-line blockingle ninnulla latensi degradation adisthaana paakkat nashtam nirakkineyum raundu trip samayatheyum aasrayichirikkunnu, uyarnna nashtangal kooduthal latensi srishtikkunnu. stream amoorthatha maattathe, paakkat nashtam kuraykkunnathu head-oof-line blockingle ninnulla dosham kuraykkum; oru badal, aavarthichulla daatta ayaykkunnathinu forwade error karakshan upayogichu vishwasaneeyamaaya baitt stream nadappilaakkuka ennathaanu, angane retransmissionukal undakaathe oru nischitha alavil nashtam sahikkaan kazhiyum.

