{"id":33434,"date":"2019-10-31T21:52:33","date_gmt":"2019-10-31T18:52:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-rabotaet-szhatie-v-obektno-orientirovannoj-arhitekture-pamyati\/"},"modified":"2019-10-31T21:52:33","modified_gmt":"2019-10-31T18:52:33","slug":"kak-rabotaet-szhatie-v-obektno-orientirovannoj-arhitekture-pamyati","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/kak-rabotaet-szhatie-v-obektno-orientirovannoj-arhitekture-pamyati","title":{"rendered":"Si sihet punimi i kompresionit n\u00eb arkitektur\u00ebn e orientuar nga objektet t\u00eb kujtes\u00ebs","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nj\u00eb ekip inxhinier\u00ebsh nga MIT krijoi nj\u00eb hierarki kujtese t\u00eb orientuar nga objektet p\u00ebr t\u00eb punuar m\u00eb efikas me t\u00eb dh\u00ebnat. N\u00eb k\u00ebt\u00eb artikull shqyrtojm\u00eb se si funksionon ajo.<\/p>\n

\"Si<\/a><\/noindex><\/a><\/noindex>
\n\/ PxHere<\/noindex> \/ PD<\/i><\/p>\n

Si\u00e7 dihet, rritja e performanc\u00ebs s\u00eb CPU-ve moderne nuk shoq\u00ebrohet me nj\u00eb ulje p\u00ebrkat\u00ebse t\u00eb vones\u00ebs n\u00eb qasje n\u00eb kujtes\u00eb. Diferenca n\u00eb ndryshimin e treguesve nga viti n\u00eb vit mund t\u00eb arrij\u00eb deri n\u00eb 10 her\u00eb (PDF, fq.3<\/a><\/noindex>). Si rezultat, krijohet nj\u00eb ngushtic\u00eb q\u00eb nuk lejon shfryt\u00ebzimin e plot\u00eb t\u00eb burimeve t\u00eb disponueshme dhe ngadal\u00ebson p\u00ebrpunimin e t\u00eb dh\u00ebnave.<\/p>\n

D\u00ebmtojn\u00eb performanc\u00ebn vonesat e quajtura dekrompresive. N\u00eb disa raste, mund t\u00eb nevojiten deri n\u00eb 64 cikle procesori p\u00ebr p\u00ebrgatitjen e dekrompresionit t\u00eb t\u00eb dh\u00ebnave. <\/p>\n

P\u00ebr krahasim, mbledhja dhe shum\u00ebzimi i numrave me pik\u00eb flotante z\u00ebn\u00eb<\/a><\/noindex> jo m\u00eb shum\u00eb se dhjet\u00eb cikle. Problemi \u00ebsht\u00eb se kujtesa punon me blloqe t\u00eb dh\u00ebnash me madh\u00ebsi fikse, nd\u00ebrsa aplikacionet operojn\u00eb me objekte q\u00eb mund t\u00eb p\u00ebrmbajn\u00eb lloje t\u00eb ndryshme t\u00eb t\u00eb dh\u00ebnave dhe t\u00eb dallohet nga nj\u00ebra-tjetra n\u00eb madh\u00ebsi. P\u00ebr t\u00eb zgjidhur k\u00ebt\u00eb problem, inxhinier\u00ebt e MIT krijuan nj\u00eb hierarki kujtese t\u00eb orientuar nga objektet, e cila optimizon p\u00ebrpunimin e t\u00eb dh\u00ebnave.<\/p>\n

Si funksionon teknologjia<\/h2>\n

\nN\u00eb thelb t\u00eb zgjidhjes q\u00ebndrojn\u00eb tre teknologji: Hotpads, Zippads dhe algoritmi i kompresionit COCO.<\/p>\n

Hotpads \u00ebsht\u00eb nj\u00eb hierarki e menaxhuar me program t\u00eb kujtes\u00ebs s\u00eb regjistrave hyper-operativ\u00eb (scratchpad<\/a><\/noindex>). K\u00ebto regjistra quhen pads dhe jan\u00eb tre \u2014 nga L1 n\u00eb L3. N\u00eb to ruhet objekte me madh\u00ebsi t\u00eb ndryshme, metadata dhe matricat e treguesve.<\/p>\n

N\u00eb esenc\u00eb, arkitektura p\u00ebrb\u00ebn nj\u00eb sistem cache, por t\u00eb personalizuar p\u00ebr t\u00eb punuar me objekte. Niveli i pad-it, ku ndodhet objekti, varet nga sa shpesh p\u00ebrdoret ai. N\u00ebse nj\u00eb nga nivelet \"mbushet\", sistemi nis nj\u00eb mekaniz\u00ebm t\u00eb ngjash\u00ebm me \"mbledh\u00ebsit e mbeturinave\" n\u00eb gjuh\u00ebt Java ose Go. Ai analizon se cilat objekte p\u00ebrdoren m\u00eb rrall\u00eb se t\u00eb tjerat dhe i zhvendos automatikisht ato midis niveleve.<\/p>\n

Zippads funksionon mbi baz\u00ebn e Hotpads \u2014 arkivon dhe dearkivon t\u00eb dh\u00ebnat q\u00eb hyjn\u00eb ose dalin nga dy nivelet e fundit t\u00eb hierarkis\u00eb \u2014 pad L3 dhe kujtes\u00ebn primare. N\u00eb pad-in e par\u00eb dhe t\u00eb dyt\u00eb, t\u00eb dh\u00ebnat ruhen n\u00eb form\u00eb t\u00eb pandryshuar.<\/p><\/blockquote>\n

\n \"Si
\n
\nZippads comprimon objekte q\u00eb kan\u00eb nj\u00eb volum jo m\u00eb t\u00eb madh se 128 byte. Objektet m\u00eb t\u00eb m\u00ebdha ndahen n\u00eb pjes\u00eb, t\u00eb cilat m\u00eb pas vendosen n\u00eb zona t\u00eb ndryshme t\u00eb memories. Sipas zhvilluesve, ky qasje rrit koeficientin e p\u00ebrdorimit t\u00eb efektsh\u00ebm t\u00eb memories.<\/p>\n

P\u00ebr kompresimin e objekteve p\u00ebrdoret algoritmi COCO (Cross-Object COmpression), p\u00ebr t\u00eb cilin do t\u00eb flasim m\u00eb posht\u00eb, megjithat\u00eb sistemi \u00ebsht\u00eb n\u00eb gjendje t\u00eb punoj\u00eb edhe me Base-Delta-Immediate<\/a><\/noindex> \u0438\u043b\u0438 FPC<\/a><\/noindex>. Algoritmi COCO paraqet nj\u00eb lloji kompresimi diferencial (differential compression<\/a><\/noindex>). Ai krahasohet me objektet \"baz\u00eb\" dhe largon blloqet e p\u00ebrs\u00ebritura - shih skem\u00ebn m\u00eb posht\u00eb:<\/p>\n

\"Si<\/p>\n

Sipas inxhinier\u00ebve nga MIT, hierarkia e tyre e memories orientuar n\u00eb objekte \u00ebsht\u00eb 17% m\u00eb produktive se qasje klasike. Ajo \u00ebsht\u00eb shum\u00eb m\u00eb e af\u00ebrt me nd\u00ebrtimin e arkitekturave moderne t\u00eb aplikacioneve, prandaj metoda e re ka potencial.<\/p>\n

Pritet q\u00eb fillimisht teknologjin\u00eb t\u00eb fillojn\u00eb ta p\u00ebrdorin kompanit\u00eb q\u00eb punojn\u00eb me t\u00eb dh\u00ebna t\u00eb m\u00ebdha dhe algoritme t\u00eb m\u00ebsimit t\u00eb makinerive. Nj\u00eb drejtime tjet\u00ebr potenciale jan\u00eb platformat e cloud. Ofruesit IaaS do t\u00eb ken\u00eb mund\u00ebsin\u00eb t\u00eb punojn\u00eb m\u00eb efektivisht me virtualizimin, sistemet e ruajtjes s\u00eb t\u00eb dh\u00ebnave dhe burimet computativi.<\/p>\n

Burimet dhe burimet tona shtes\u00eb:<\/b><\/p>\n

\"Si \u00abSi nd\u00ebrtojm\u00eb IaaS\u00bb: materiale rreth pun\u00ebs 1cloud<\/a><\/noindex><\/p>\n

\"Si Evolucioni i arkitektur\u00ebs s\u00eb cloud 1cloud<\/a><\/noindex>
\n\"Si Sh\u00ebrbimi i ruajtjes s\u00eb objekteve n\u00eb 1cloud<\/a><\/noindex><\/p>\n

\"Si Sulmet e mundshme mbi HTTPS dhe m\u00ebnyrat p\u00ebr t'u mbrojtur nga ato<\/a><\/noindex>
\n\"Si Si jan\u00eb t\u00eb ngjashme dhe si ndryshojn\u00eb qasjet e Continuous Delivery dhe Continuous Integration<\/a><\/noindex>
\n\"Si Si t\u00eb mbrosh nj\u00eb server n\u00eb internet: p\u00ebrvoja 1cloud<\/a><\/noindex><\/p><\/blockquote>\n

Burimi: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043e\u0432 \u0438\u0437 MIT \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043b\u0430 \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u044e \u043f\u0430\u043c\u044f\u0442\u0438 \u0434\u043b\u044f \u0431\u043e\u043b\u0435\u0435 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0434\u0430\u043d\u043d\u044b\u043c\u0438. \u0412 \u0441\u0442\u0430\u0442\u044c\u0435 \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0435\u043c\u0441\u044f \u0441 \u0442\u0435\u043c, \u043a\u0430\u043a \u043e\u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0435\u043d\u0430. \/ PxHere \/ PD \u041a\u0430\u043a \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e, \u0440\u043e\u0441\u0442 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