{"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\/cs\/blog\/news\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","title":{"rendered":"Byl p\u0159edstaven syst\u00e9m DAXFS, podobn\u00fd ramfs a tmpfs, ale pracuj\u00edc\u00ed obchvatem str\u00e1nkov\u00e9ho cache.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kon Wang, kter\u00fd doprov\u00e1z\u00ed syst\u00e9m \u0159\u00edzen\u00ed provozu (TC, Traffic Control) v j\u00e1d\u0159e Linux a vyv\u00edj\u00ed projekt Multikernel, p\u0159edstavil na seznamu v\u00fdvoj\u00e1\u0159\u016f j\u00e1dra Linux nov\u00fd souborov\u00fd syst\u00e9m DAXFS. DAXFS vyu\u017e\u00edv\u00e1 pro ukl\u00e1d\u00e1n\u00ed dat opera\u010dn\u00ed pam\u011b\u0165, pracuje v re\u017eimu pouze pro \u010dten\u00ed a funk\u010dn\u011b p\u0159ipom\u00edn\u00e1 zjednodu\u0161en\u00e9 souborov\u00e9 syst\u00e9my ramfs a tmpfs. Modul j\u00e1dra s implementac\u00ed DAXFS, stejn\u011b jako utilita mkdaxfs pro vytvo\u0159en\u00ed FS, byly zve\u0159ejn\u011bny pod licenc\u00ed GPLv2. Po recenzov\u00e1n\u00ed se zva\u017euje mo\u017enost integrace DAXFS do hlavn\u00edho ozna\u010den\u00ed j\u00e1dra. <\/p>\n

Kl\u00ed\u010dovou vlastnost\u00ed nov\u00e9ho FS je vyu\u017eit\u00ed subsyst\u00e9mu DAX (Direct Access) k pr\u00e1ci obch\u00e1z\u00edc\u00ed str\u00e1nkovou mezipam\u011b\u0165 a p\u0159\u00edm\u00e9mu p\u0159\u00edstupu ke sd\u00edlen\u00e9 fyzick\u00e9 pam\u011bti. V ramfs a tmpfs se obsah ukl\u00e1d\u00e1 do str\u00e1nkov\u00e9 mezipam\u011bti, co\u017e p\u0159i pou\u017eit\u00ed jednoho FS v n\u011bkolika kontejnerech nebo j\u00e1drech spou\u0161t\u011bn\u00fdch pomoc\u00ed technologie Multikernel vede k um\u00edst\u011bn\u00ed n\u011bkolika kopi\u00ed dat v fyzick\u00e9 pam\u011bti. Napln\u011bn\u00ed ramfs a tmpfs tak\u00e9 vy\u017eaduje proveden\u00ed zbyte\u010dn\u00fdch operac\u00ed kop\u00edrov\u00e1n\u00ed bez mo\u017enosti prov\u00e9st mapov\u00e1n\u00ed existuj\u00edc\u00ed oblasti pam\u011bti. <\/p>\n

P\u0159\u00edm\u00fd p\u0159\u00edstup k pam\u011bti v DAXFS umo\u017e\u0148uje vynechat zbyte\u010dn\u00e9 operace kop\u00edrov\u00e1n\u00ed a organizovat pr\u00e1ci obch\u00e1zej\u00edc\u00ed tradi\u010dn\u00ed z\u00e1sobn\u00edk vstupu\/v\u00fdstupu na b\u00e1zi blokov\u00fdch za\u0159\u00edzen\u00ed a mechanism\u016f vyrovn\u00e1vac\u00ed pam\u011bti. Tak\u00e9 se t\u00edm odstra\u0148uje fragmentace alokace pam\u011bti p\u0159i spole\u010dn\u00e9m pou\u017eit\u00ed jednoho FS v r\u016fzn\u00fdch kontejnerech a multikernel j\u00e1drech. DAXFS pracuje v re\u017eimu Zero-Copy a p\u0159\u00edmo p\u0159ed\u00e1v\u00e1 obsah soubor\u016f z pam\u011bti bez zbyte\u010dn\u00e9ho duplicov\u00e1n\u00ed dat ve str\u00e1nkov\u00e9 mezipam\u011bti a s mo\u017enost\u00ed mapov\u00e1n\u00ed nep\u0159etr\u017eit\u00fdch oblast\u00ed fyzick\u00e9 pam\u011bti do ka\u017ed\u00e9ho instance kontejneru nebo j\u00e1dra. Dodate\u010dn\u011b se podporuje pou\u017e\u00edv\u00e1n\u00ed API dma-buf pro vyu\u017e\u00edv\u00e1n\u00ed pam\u011bti, kterou vyv\u00e1\u017eej\u00ed GPU, FPGA\/SmartNIC nebo CXL za\u0159\u00edzen\u00ed. <\/p>\n

FS pracuje v re\u017eimu pouze pro \u010dten\u00ed a inicializuje se na\u010dten\u00edm do pam\u011bti p\u0159edem p\u0159ipraven\u00e9ho obrazu FS, co\u017e zjednodu\u0161uje realizaci, umo\u017e\u0148uje vyhnout se prov\u00e1d\u011bn\u00ed operac\u00ed alokace pam\u011bti b\u011bhem pr\u00e1ce a vylu\u010duje slo\u017eit\u00e9 mechanismy spr\u00e1vy za\u0159\u00edzen\u00ed. <\/p>\n

Kl\u00ed\u010dovou oblast\u00ed pou\u017eit\u00ed DAXFS je aplikace ve spojen\u00ed s technologi\u00ed Multikernel, kter\u00e1 umo\u017e\u0148uje na jednom fyzick\u00e9m po\u010d\u00edta\u010di provozovat n\u011bkolik nez\u00e1visl\u00fdch instanc\u00ed j\u00e1dra Linux, kter\u00e9 maj\u00ed p\u0159\u00edm\u00fd p\u0159\u00edstup k hardwarov\u00fdm zdroj\u016fm a mohou b\u00fdt pou\u017eity k spu\u0161t\u011bn\u00ed n\u011bkolika izolovan\u00fdch syst\u00e9mov\u00fdch prost\u0159ed\u00ed. <\/p>\n

DAXFS m\u016f\u017ee b\u00fdt tak\u00e9 vyu\u017eit k organizaci sd\u00edlen\u00e9ho p\u0159\u00edstupu n\u011bkolika kontejner\u016f nebo jader k z\u00e1kladn\u00edmu syst\u00e9mov\u00e9mu obrazu ulo\u017een\u00e9mu v sd\u00edlen\u00e9 pam\u011bti; ke sn\u00ed\u017een\u00ed re\u017eijn\u00edch n\u00e1klad\u016f p\u0159i p\u0159\u00edstupu k informac\u00edm v pam\u011bti hardwarov\u00fdch akceler\u00e1tor\u016f; k uspo\u0159\u00e1d\u00e1n\u00ed p\u0159\u00edstupu k pam\u011bti z n\u011bkolika hostitel\u016f bez s\u00ed\u0165ov\u00e9ho vstupu\/v\u00fdstupu nebo k trval\u00e9 pam\u011bti za vyu\u017eit\u00ed za\u0159\u00edzen\u00ed na b\u00e1zi sb\u011brnice CXL (Compute Express Link).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 […]<\/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\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 P\u0159edstavena FS DAXFS, podobn\u00e1 ramfs a tmpfs, ale funguj\u00edc\u00ed ob ohledov\u00e1n\u00ed str\u00e1nkov\u00e9ho cache | ProHoster","description":"Cong Wang, kter\u00fd se pod\u00edl\u00ed na subsyst\u00e9mu \u0159\u00edzen\u00ed provozu (TC, Traffic Control) v j\u00e1d\u0159e Linux a rozv\u00edj\u00ed projekt Multikernel, p\u0159edstavil v seznamu v\u00fdvoj\u00e1\u0159\u016f j\u00e1dra Linux nov\u00fd souborov\u00fd syst\u00e9m DAXFS.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0424\u0421 DAXFS, \u043f\u043e\u0445\u043e\u0436\u0430\u044f \u043d\u0430 ramfs \u0438 tmpfs, \u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0430\u044f \u0432 \u043e\u0431\u0445\u043e\u0434 \u0441\u0442\u0440\u0430\u043d\u0438\u0447\u043d\u043e\u0433\u043e \u043a\u044d\u0448\u0430 | ProHoster","og:description":"\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.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","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":"2026-01-25T15:11:59+00:00","article:modified_time":"2026-01-25T15:11:59+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"155127","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-25 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