{"id":155127,"date":"2026-01-25T17:11:59","date_gmt":"2026-01-25T15:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha"},"modified":"2026-01-25T17:11:59","modified_gmt":"2026-01-25T15:11:59","slug":"predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","title":{"rendered":"FS DAXFS har presenterats, liknande ramfs och tmpfs, men som fungerar kring sidcache.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Cong Wang, som ansvarar f\u00f6r trafikstyrningssystemet (TC, Traffic Control) i Linux-k\u00e4rnan och utvecklar Multikernel-projektet, har presenterat ett nytt filsystem, DAXFS, i listan \u00f6ver Linux-k\u00e4rnuts utvecklare. DAXFS anv\u00e4nder RAM-minne f\u00f6r datalagring, fungerar i skrivskyddat l\u00e4ge och liknar funktionellt nedsk\u00e4rda filsystem som ramfs och tmpfs. Modulen f\u00f6r k\u00e4rnan som implementerar DAXFS, samt verktyget mkdaxfs f\u00f6r att skapa filsystemet, publicerades under GPLv2-licensen. Efter granskning \u00f6verv\u00e4gs m\u00f6jligheten att integrera DAXFS i k\u00e4rnans huvudkomponent.      <\/p>\n<p>Den nyckelfunktion som det nya filsystemet erbjuder \u00e4r anv\u00e4ndningen av DAX (Direct Access) subsystemet f\u00f6r att bypassa sidcacheminnet och direkt\u00e5tkomst till delat fysiskt minne. I ramfs och tmpfs sparas inneh\u00e5llet i sidcache, vilket vid anv\u00e4ndning av ett filsystem i flera containrar eller k\u00e4rnor, startade med Multikernel-teknologi, leder till att flera kopior av data lagras i det fysiska minnet. Fyllandet av ramfs och tmpfs kr\u00e4ver ocks\u00e5 on\u00f6diga kopieringsoperationer utan m\u00f6jlighet att mappa till ett befintligt minne.    <\/p>\n<p>Direkt\u00e5tkomsten till minne i DAXFS m\u00f6jligg\u00f6r att eliminera on\u00f6diga kopieringsoperationer och organisera arbetet f\u00f6r att bypassa den traditionella in- och utdata-stacken baserad p\u00e5 blockenheter och buffringsmekanismer, samt att bli av med fragmentering vid minnesallokering n\u00e4r ett filsystem delas mellan olika containrar och multikernel-k\u00e4rnor. DAXFS fungerar i Zero-Copy-l\u00e4ge och levererar direkt inneh\u00e5llet i filer fr\u00e5n minnet utan on\u00f6dig dataduplicering i sidcache och med m\u00f6jlighet att mappa kontinuerliga omr\u00e5den av fysiskt minne i varje instans av containern eller k\u00e4rnan. Dessutom st\u00f6djer den anv\u00e4ndning av API dma-buf f\u00f6r att anv\u00e4nda minne som exporteras av GPU, FPGA\/SmartNIC eller CXL-enheter.    <\/p>\n<p>Filsystemet fungerar i skrivskyddat l\u00e4ge och initialiseras genom att ladda en f\u00f6rberedd bild av filsystemet i minnet, vilket f\u00f6renklar implementeringen, eliminerar behovet av att allokera minne under drift och utesluter komplicerade mekanismer f\u00f6r enhetshantering.     <\/p>\n<p>En viktig anv\u00e4ndningsomr\u00e5de f\u00f6r DAXFS \u00e4r anv\u00e4ndningen tillsammans med Multikernel-teknologin, som m\u00f6jligg\u00f6r k\u00f6rning av flera oberoende k\u00e4rnexemplar av Linux p\u00e5 en och samma fysiska dator. Dessa k\u00e4rnor har direkt \u00e5tkomst till h\u00e5rdvaruresurserna och kan anv\u00e4ndas f\u00f6r att k\u00f6ra flera isolerade systemmilj\u00f6er.       <\/p>\n<p>DAXFS kan ocks\u00e5 anv\u00e4ndas f\u00f6r att organisera delad \u00e5tkomst f\u00f6r flera containrar eller k\u00e4rnor till en grundl\u00e4ggande systemavbild som lagras i delat minne; f\u00f6r att minska overheaden vid \u00e5tkomst till information i minnet p\u00e5 h\u00e5rdvaruacceleratorer; och f\u00f6r att m\u00f6jligg\u00f6ra minnes\u00e5tkomst fr\u00e5n flera v\u00e4rdar utan n\u00e4tverks-I\/O eller till best\u00e5ende minne med hj\u00e4lp av CXL-bussens (Compute Express Link) enheter.<br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64674\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043d\u0433 \u0412\u0430\u043d\u0433 (Cong Wang), \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0442\u0440\u0430\u0444\u0438\u043a\u043e\u043c (TC, Traffic Control) \u0432 \u044f\u0434\u0440\u0435 Linux \u0438 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 Multikernel, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u043d\u043e\u0432\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 DAXFS. DAXFS \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u0443\u044e \u043f\u0430\u043c\u044f\u0442\u044c, \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f \u0438 \u043d\u0430\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442 \u043f\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0443\u0440\u0435\u0437\u0430\u043d\u043d\u044b\u0435 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b ramfs \u0438 tmpfs. \u041c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-155127","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043d\u0433 \u0412\u0430\u043d\u0433 (Cong Wang), \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0442\u0440\u0430\u0444\u0438\u043a\u043e\u043c (TC, Traffic Control) \u0432 \u044f\u0434\u0440\u0435 Linux \u0438 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 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