{"id":111215,"date":"2023-10-31T09:10:15","date_gmt":"2023-10-31T07:10:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kod-bcachefs-prinyat-v-osnovnoj-sostav-yadra-linux-6-7"},"modified":"2023-10-31T09:10:15","modified_gmt":"2023-10-31T07:10:15","slug":"kod-bcachefs-prinyat-v-osnovnoj-sostav-yadra-linux-6-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/kod-bcachefs-prinyat-v-osnovnoj-sostav-yadra-linux-6-7","title":{"rendered":"Koden til Bcachefs er blevet accepteret i den prim\u00e6re del af Linux-kernen 6.7","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linus Torvalds har godkendt anmodningen om at inkludere Bcachefs-filsystemet i hovedkernen i Linux og har tilf\u00f8jet implementeringen af Bcachefs til det repository, hvor udviklingen af kerneversion 6.7 finder sted, hvis udgivelse forventes tidligt i januar. Den tilf\u00f8jede kernepatch omfatter cirka 95.000 linjer kode. Projektet er blevet udviklet i mere end 10 \u00e5r af Kent Overstreet, som ogs\u00e5 udviklede Bcache, et system til caching af blokkede enheder p\u00e5 SSD-drev.     <\/p>\n<p>Fors\u00f8gene p\u00e5 at fremme Bcachefs til hovedkernen startede i 2020, hvorefter der gik n\u00e6sten tre \u00e5r med at udbedre bem\u00e6rkninger og mangler, der blev p\u00e5vist efter vurderingen. I for\u00e5ret i \u00e5r blev et opdateret s\u00e6t patches foresl\u00e5et, som blev afvist flere gange, men endelig blev det i september accepteret i linux-next-grenen, som er beregnet til at teste mulighederne for fremtidige Linux-kerneudgivelser.    <\/p>\n<p>Bcachefs udvikles med teknologier, der allerede er afpr\u00f8vet i udviklingen af det bloklagringssystem, Bcache, som er designet til at cache adgang til langsomme harddiske p\u00e5 hurtige SSD-drev (indg\u00e5r i kernen siden version 3.10). I Bcachefs anvendes en Copy-on-Write (COW) mekanisme, hvor \u00e6ndringer ikke f\u00f8rer til overskrivning af data \u2014 den nye tilstand skrives til et nyt sted, hvorefter pegeren til den aktuelle tilstand \u00e6ndres.     <\/p>\n<p>I Bcachefs er der gjort fors\u00f8g p\u00e5 at opn\u00e5 en kombination af det pr\u00e6stationsniveau, p\u00e5lidelighed og skalerbarhed, der kendetegner XFS, og den udvidede funktionalitet, der findes i Btrfs og ZFS, s\u00e5som inklusion af flere enheder i et partition, multilagsdrevskonfigurationer, replikation (RAID 1\/10), caching, transparent datakomprimering (LZ4, gzip og ZSTD modes), tilstandsudsnit (snapshots), integritetsverifikation via checksummer, muligheden for at gemme Reed-Solomon fejlkorrektionskoder (RAID 5\/6) og opbevaring af information i krypteret form (ChaCha20 og Poly1305 anvendes). I ydeevne overg\u00e5r Bcachefs Btrfs og andre filsystemer baseret p\u00e5 Copy-on-Write mekanismen og viser en hastighed, der n\u00e6rmer sig Ext4 og XFS.       <\/p>\n<p>En s\u00e6rlig egenskab ved Bcachefs er underst\u00f8ttelsen af multilagsdrevkonfigurationer, hvor opbevaringen sammens\u00e6ttes af flere lag \u2014 den nederste lag tilsluttes de hurtigste drev (SSD), som bruges til caching af ofte anvendte data, mens det \u00f8verste lag dannes af mere rummelige og billigere diske, der sikrer opbevaring af mindre eftersp\u00f8rgte data. Mellem lagene kan der anvendes writeback caching. Drev kan dynamisk tilf\u00f8jes og afconnectes fra partitionen uden at stoppe brugen af filsystemet (data migrerer automatisk).<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60021\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u0443\u0442\u0432\u0435\u0440\u0434\u0438\u043b \u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \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 \u0434\u043e\u0431\u0430\u0432\u0438\u043b \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e Bcachefs \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u0435\u0442\u043a\u0430 \u044f\u0434\u0440\u0430 6.7, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0436\u0438\u0434\u0430\u0435\u0442\u0441\u044f \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 \u044f\u043d\u0432\u0430\u0440\u044f. \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0432 \u044f\u0434\u0440\u043e \u043f\u0430\u0442\u0447 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 95 \u0442\u044b\u0441\u044f\u0447 \u0441\u0442\u0440\u043e\u043a \u043a\u043e\u0434\u0430. \u041f\u0440\u043e\u0435\u043a\u0442 \u0443\u0436\u0435 \u0431\u043e\u043b\u0435\u0435 10 \u043b\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0442\u0430\u043a\u0436\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043b [&hellip;]<\/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-111215","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u0443\u0442\u0432\u0435\u0440\u0434\u0438\u043b \u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs 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