{"id":109017,"date":"2023-06-19T15:10:24","date_gmt":"2023-06-19T13:10:24","guid":{"rendered":"https:\/\/prohoster.info\/?p=109017"},"modified":"2023-06-21T11:07:42","modified_gmt":"2023-06-21T09:07:42","slug":"prodvizhenie-bcachefs-v-sostav-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/prodvizhenie-bcachefs-v-sostav-yadra-linux","title":{"rendered":"Promovimi i Bcachefs n\u00eb b\u00ebrtham\u00ebn e Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kent Overstreet, autori i sistemit t\u00eb caches s\u00eb pajisjeve bllok p\u00ebr SSD-t\u00eb BCache, n\u00eb fjalimin e tij n\u00eb konferenc\u00ebn LSFMM 2023 (Linux Storage, Filesystem, Memory Management & BPF Summit), p\u00ebrmbledh rezultatet e pun\u00ebs p\u00ebr p\u00ebrparimin e sistemit t\u00eb filesave Bcachefs n\u00eb b\u00ebrtham\u00ebn kryesore t\u00eb Linux dhe tregon p\u00ebr planet p\u00ebr zhvillimin e m\u00ebtejsh\u00ebm t\u00eb k\u00ebtij sistemi. N\u00eb maj, nj\u00eb grup i p\u00ebrdit\u00ebsuar patch-e p\u00ebr realizimin e Bcachefs u propozuan p\u00ebr rishikim dhe p\u00ebrfshirje n\u00eb b\u00ebrtham\u00ebn kryesore t\u00eb Linux. Bcachefs \u00ebsht\u00eb duke u zhvilluar tashm\u00eb p\u00ebr rreth 10 vjet. Njoftimi p\u00ebr gatishm\u00ebrin\u00eb e rishikimit t\u00eb zbatimit t\u00eb Bcachefs p\u00ebrfshir\u00eb n\u00eb b\u00ebrtham\u00eb ishte b\u00ebr\u00eb q\u00eb n\u00eb fund t\u00eb vitit 2020 dhe n\u00eb variantin aktual t\u00eb patch-eve jan\u00eb marr\u00eb parasysh v\u00ebrejtjet dhe dob\u00ebsit\u00eb e evidentuara n\u00eb rishikimin e m\u00ebparsh\u00ebm. <\/p>\n

Q\u00ebllimi i zhvillimit t\u00eb Bcachefs \u00ebsht\u00eb arritja e nivelit XFS n\u00eb performanc\u00eb, besueshm\u00ebri dhe shkall\u00ebzim, duke ofruar nj\u00ebkoh\u00ebsisht mund\u00ebsi shtes\u00eb tipike p\u00ebr Btrfs dhe ZFS, si\u00e7 jan\u00eb p\u00ebrfshirja n\u00eb ndarje t\u00eb disa pajisjeve, aranzhime t\u00eb shum\u00ebfishta t\u00eb ruajtjes, riprodhim (RAID 1\/10), caching, kompresimi transparent i t\u00eb dh\u00ebnave (modet LZ4, gzip dhe ZSTD), prerjet e gjendjes (snapshot), verifikimi i integritetit p\u00ebrmes hash-eve, mund\u00ebsia e ruajtjes s\u00eb kodave t\u00eb korrigjimit t\u00eb gabimeve t\u00eb Reed-Solomon (RAID 5\/6) dhe ruajtja e informacionit n\u00eb form\u00eb t\u00eb enkriptuar (p\u00ebrdoren ChaCha20 dhe Poly1305). N\u00eb performanc\u00eb, Bcachefs tejkalon Btrfs dhe sistemet e tjera t\u00eb filesave t\u00eb bazuara n\u00eb mekanizmin Copy-on-Write, duke demonstruar shpejt\u00ebsi t\u00eb ngjashme me Ext4 dhe XFS. <\/p>\n

Nga arritjet e fundit n\u00eb zhvillimin e Bcachefs, vlen t\u00eb theksohet stabilizimi i realizimit t\u00eb snapshot-eve t\u00eb disponueshme p\u00ebr shkrim. Krahasuar me Btrfs, snapshot-et n\u00eb Bcachefs tani shkall\u00ebzohen shum\u00eb m\u00eb mir\u00eb dhe nuk kan\u00eb problemet e zakonshme q\u00eb posedon Btrfs. N\u00eb praktik\u00eb, funksionaliteti i snapshot-eve \u00ebsht\u00eb testuar n\u00eb organizimin e kopjimeve t\u00eb rezerv\u00ebs p\u00ebr MySQL. Bcachefs gjithashtu ka b\u00ebr\u00eb nj\u00eb pun\u00eb t\u00eb madhe p\u00ebr t\u00eb p\u00ebrmir\u00ebsuar shkall\u00ebzimin - sistemi i filesave ka treguar rezultate t\u00eb mira gjat\u00eb testimeve n\u00eb ruajtje me madh\u00ebsi prej 100 TB, dhe pritet q\u00eb Bcachefs t\u00eb implementohet n\u00eb nj\u00eb ruajtje prej 1 PB s\u00eb shpejti. Nj\u00eb modalitet i ri nocow \u00ebsht\u00eb shtuar p\u00ebr t\u00eb \u00e7aktivizuar mekanizmin \u201ecopy-on-write\u201d (nocow). Gjat\u00eb ver\u00ebs, planifikojn\u00eb t\u00eb arrijn\u00eb nj\u00eb gjendje t\u00eb zgjatur t\u00eb realizimit t\u00eb kodave t\u00eb korrigjimit t\u00eb gabimeve dhe RAIDZ, si dhe t\u00eb zgjidhin problemet me konsumimin e lart\u00eb t\u00eb memorjes gjat\u00eb rikuperimit dhe verifikimit t\u00eb sistemit t\u00eb filesave me utilitarin fsck. <\/p>\n

N\u00eb planet e ardhshme p\u00ebrmendet d\u00ebshira p\u00ebr t\u00eb p\u00ebrdorur gjuh\u00ebn Rust n\u00eb zhvillimin e Bcachefs. Sipas autorit t\u00eb Bcachefs, ai e do programimin dhe nuk do t\u00eb merret me de bugimin e kodit, dhe tani i duket e \u00e7mendur t\u00eb shkruaj kod n\u00eb gjuh\u00ebn C kur ka nj\u00eb alternativ\u00eb m\u00eb t\u00eb mir\u00eb. Rust \u00ebsht\u00eb tashm\u00eb i integruar n\u00eb Bcachefs p\u00ebr t\u00eb implementuar disa utilitete q\u00eb ekzekutohen n\u00eb hap\u00ebsir\u00ebn e p\u00ebrdoruesit. M\u00eb shum\u00eb se kaq, ka nj\u00eb ide p\u00ebr ta rishtuar gradualisht Bcachefs plot\u00ebsisht n\u00eb Rust, pasi p\u00ebrdorimi i k\u00ebsaj gjuhe kursen ndjesh\u00ebm koh\u00eb n\u00eb de bugim. <\/p>\n

Sa i p\u00ebrket promovimit t\u00eb Bcachefs n\u00eb b\u00ebrtham\u00ebn kryesore t\u00eb Linux-it, procesi i miratimit mund t\u00eb zgjas\u00eb p\u00ebr shkak t\u00eb madh\u00ebsis\u00eb s\u00eb konsiderueshme t\u00eb ndryshimeve (2500 patche dhe rreth 90,000 rreshta kodi), q\u00eb \u00ebsht\u00eb e v\u00ebshtir\u00eb p\u00ebr t'u rishikuar. P\u00ebr t\u00eb p\u00ebrshpejtuar rishikimin, disa zhvillues sugjeruan t\u00eb ndahen serit\u00eb e patcheve n\u00eb pjes\u00eb m\u00eb t\u00eb vogla dhe t\u00eb ndara logjikisht. Gjat\u00eb diskutimit, disa pjes\u00ebmarr\u00ebs gjithashtu v\u00ebn\u00eb n\u00eb dukje zhvillimin e projektit nga nj\u00eb zhvillues dhe rrezikun q\u00eb kodi mund t\u00eb mbetet pa mb\u00ebshtetje, n\u00ebse ndodh ndonj\u00eb gj\u00eb me zhvilluesin e tij (projekti \u00ebsht\u00eb n\u00eb interesin e dy punonj\u00ebsve t\u00eb Red Hat, por puna e tyre deri tani \u00ebsht\u00eb e kufizuar n\u00eb rregullimin e gabimeve). <\/p>\n

Bcachefs zhvillohet duke p\u00ebrdorur teknologji q\u00eb jan\u00eb testuar tashm\u00eb n\u00eb zhvillimin e pajisjes bllok Bcache, e cila \u00ebsht\u00eb projektuar p\u00ebr caching t\u00eb aksesit n\u00eb disqet e ngadalta t\u00eb ngurt\u00eb mbi SSD-t\u00eb e shpejt\u00eb (pjes\u00eb e b\u00ebrtham\u00ebs q\u00eb nga versioni 3.10). N\u00eb Bcachefs p\u00ebrdoret mekanizmi Copy-on-Write (COW), ku ndryshimet nuk \u00e7ojn\u00eb n\u00eb rip\u00ebrkufizimin e t\u00eb dh\u00ebnave - gjendja e re shkruhet n\u00eb nj\u00eb vend t\u00eb ri dhe pastaj adresimi i gjendjes aktuale ndryshohet. <\/p>\n

Ve\u00e7oria e Bcachefs \u00ebsht\u00eb mb\u00ebshtetje p\u00ebr lidhjen multilayer t\u00eb pajisjeve, ku ruajtja p\u00ebrb\u00ebhet nga disa shtresa - n\u00eb shtres\u00ebn e poshtme lidhen pajisje m\u00eb t\u00eb shpejta (SSD) q\u00eb p\u00ebrdoren p\u00ebr caching t\u00eb t\u00eb dh\u00ebnave q\u00eb p\u00ebrdoren shpesh, nd\u00ebrsa shtresa e sip\u00ebrme p\u00ebrb\u00ebhet nga disqe m\u00eb t\u00eb m\u00ebdha dhe m\u00eb t\u00eb lira, t\u00eb cilat ofrojn\u00eb ruajtje p\u00ebr t\u00eb dh\u00ebnat q\u00eb k\u00ebrkohen m\u00eb pak. Nd\u00ebrmjet shtresave mund t\u00eb aplikohet caching n\u00eb modalitetin e shkrimit t\u00eb vonuar (writeback). Pajisjet mund t\u00eb shtohen dhe \u00e7aktivizohen dinamikisht nga ndarja pa nd\u00ebrprer\u00eb p\u00ebrdorimin e sistemit t\u00eb filesave (t\u00eb dh\u00ebnat migrojn\u00eb automatikisht).
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet), \u0430\u0432\u0442\u043e\u0440 \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u0439 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0430 SSD-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u0445 BCache, \u0432 \u0441\u0432\u043e\u0451\u043c \u0432\u044b\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u043d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 LSFMM 2023 (Linux Storage, Filesystem, Memory Management & BPF Summit) \u043e\u0431\u043e\u0431\u0449\u0438\u043b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0434\u0432\u0438\u0436\u0435\u043d\u0438\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0438 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b \u043e \u043f\u043b\u0430\u043d\u0430\u0445 \u043f\u043e \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u043c\u0443 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044e \u0434\u0430\u043d\u043d\u043e\u0439 \u0424\u0421. \u0412 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-109017","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Promovimi i Bcachefs n\u00eb b\u00ebrtham\u00ebn e Linux | ProHoster","description":"Kent Overstreet, autor i sistemit t\u00eb caching t\u00eb pajisjeve bllokuese n\u00eb SSD-n\u00eb BCache, n\u00eb fjalimin e tij n\u00eb konferenc\u00ebn LSFMM 2023 (Linux Storage, Filesystem, Memory Management & BPF Summit) p\u00ebrmbledh rezultatet e pun\u00ebs p\u00ebr promovimin e sistemit t\u00eb skedar\u00ebve Bcachefs n\u00eb b\u00ebrtham\u00ebn e Linux-it dhe foli p\u00ebr planet p\u00ebr zhvillimin e m\u00ebtejsh\u00ebm t\u00eb k\u00ebtij sistemi.","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/prodvizhenie-bcachefs-v-sostav-yadra-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sq_AL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041f\u0440\u043e\u0434\u0432\u0438\u0436\u0435\u043d\u0438\u0435 Bcachefs \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux | ProHoster","og:description":"\u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet), \u0430\u0432\u0442\u043e\u0440 \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u0439 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043d\u0430 SSD-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u0445 BCache, \u0432 \u0441\u0432\u043e\u0451\u043c \u0432\u044b\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u043d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 LSFMM 2023 (Linux Storage, Filesystem, Memory Management & BPF Summit) \u043e\u0431\u043e\u0431\u0449\u0438\u043b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0434\u0432\u0438\u0436\u0435\u043d\u0438\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0438 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b \u043e \u043f\u043b\u0430\u043d\u0430\u0445 \u043f\u043e \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u043c\u0443 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044e \u0434\u0430\u043d\u043d\u043e\u0439 \u0424\u0421. \u0412","og:url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/prodvizhenie-bcachefs-v-sostav-yadra-linux","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2023-06-19T13:10:24+00:00","article:modified_time":"2023-06-21T09:07:42+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts\/109017","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/comments?post=109017"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts\/109017\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/media?parent=109017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/categories?post=109017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/tags?post=109017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}