{"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\/pl\/blog\/news\/predstavlena-fs-daxfs-pohozhaya-na-ramfs-i-tmpfs-no-rabotayushhaya-v-obhod-stranichnogo-kesha","title":{"rendered":"Przedstawiono system plik\u00f3w DAXFS, podobny do ramfs i tmpfs, ale dzia\u0142aj\u0105cy z omini\u0119ciem pami\u0119ci podr\u0119cznej stron.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Cong Wang, odpowiedzialny za subsystem zarz\u0105dzania ruchem (TC, Traffic Control) w j\u0105drze Linux oraz rozwijaj\u0105cy projekt Multikernel, zaprezentowa\u0142 nowy system plik\u00f3w DAXFS na li\u015bcie programist\u00f3w j\u0105dra Linux. DAXFS wykorzystuje pami\u0119\u0107 operacyjn\u0105 do przechowywania danych, dzia\u0142a w trybie tylko do odczytu i przypomina funkcjonalno\u015bci\u0105 uproszczone systemy plik\u00f3w ramfs i tmpfs. Modu\u0142 j\u0105dra implementuj\u0105cy DAXFS oraz narz\u0119dzie mkdaxfs do tworzenia systemu plik\u00f3w zosta\u0142y opublikowane na licencji GPLv2. Po przegl\u0105dzie rozwa\u017cana jest mo\u017cliwo\u015b\u0107 integracji DAXFS do podstawowej struktury j\u0105dra.      <\/p>\n<p>Kluczow\u0105 cech\u0105 nowego systemu plik\u00f3w jest wykorzystanie subsystemu DAX (Direct Access) do pracy z pomini\u0119ciem pami\u0119ci podr\u0119cznej stron i bezpo\u015bredniego dost\u0119pu do wsp\u00f3\u0142dzielonej pami\u0119ci fizycznej. W ramfs i tmpfs zawarto\u015b\u0107 jest przechowywana w pami\u0119ci podr\u0119cznej stron, co w przypadku korzystania z jednego systemu plik\u00f3w w kilku kontenerach lub j\u0105drach uruchamianych przy u\u017cyciu technologii Multikernel prowadzi do umieszczania kilku kopii danych w pami\u0119ci fizycznej. Nape\u0142nianie ramfs i tmpfs wymaga tak\u017ce wykonania zb\u0119dnych operacji kopiowania bez mo\u017cliwo\u015bci mapowania istniej\u0105cego obszaru pami\u0119ci.    <\/p>\n<p>Bezpo\u015bredni dost\u0119p do pami\u0119ci w DAXFS pozwala na wyeliminowanie zb\u0119dnych operacji kopiowania i organizacj\u0119 pracy z pomini\u0119ciem tradycyjnego stosu wej\u015bcia\/wyj\u015bcia opartego na urz\u0105dzeniach blokowych i mechanizmach buforowania. Umo\u017cliwia to tak\u017ce pozbycie si\u0119 fragmentacji alokacji pami\u0119ci przy wsp\u00f3\u0142dzieleniu jednego systemu plik\u00f3w w r\u00f3\u017cnych kontenerach i j\u0105drach multikernel. DAXFS dzia\u0142a w trybie Zero-Copy i bezpo\u015brednio dostarcza zawarto\u015b\u0107 plik\u00f3w z pami\u0119ci, eliminuj\u0105c nadmierne duplikowanie danych w pami\u0119ci podr\u0119cznej stron oraz umo\u017cliwiaj\u0105c mapowanie ci\u0105g\u0142ych obszar\u00f3w fizycznej pami\u0119ci do ka\u017cdego egzemplarza kontenera lub j\u0105dra. Dodatkowo wspierane jest korzystanie z API dma-buf do wykorzystania pami\u0119ci eksportowanej przez GPU, FPGA\/SmartNIC lub urz\u0105dzenia CXL.    <\/p>\n<p>System plik\u00f3w dzia\u0142a w trybie tylko do odczytu i jest inicjowany przez za\u0142adowanie do pami\u0119ci wcze\u015bniej przygotowanego obrazu systemu plik\u00f3w, co upraszcza realizacj\u0119, pozwala na wyeliminowanie operacji alokacji pami\u0119ci podczas dzia\u0142ania i wyklucza skomplikowane mechanizmy zarz\u0105dzania urz\u0105dzeniem.     <\/p>\n<p>Kluczowym obszarem zastosowania DAXFS jest wykorzystanie go w po\u0142\u0105czeniu z technologi\u0105 Multikernel, kt\u00f3ra pozwala na uruchamianie kilku niezale\u017cnych instancji j\u0105dra Linux na jednym fizycznym komputerze. Te instancje maj\u0105 bezpo\u015bredni dost\u0119p do zasob\u00f3w sprz\u0119towych i mog\u0105 by\u0107 u\u017cywane do uruchamiania wielu izolowanych \u015brodowisk systemowych.       <\/p>\n<p>DAXFS mo\u017ce by\u0107 r\u00f3wnie\u017c wykorzystywany do organizacji wsp\u00f3lnego dost\u0119pu kilku kontener\u00f3w lub j\u0105der do podstawowego obrazu systemu, umieszczonego w pami\u0119ci dzielonej; do zmniejszenia narzut\u00f3w przy dost\u0119pie do informacji w pami\u0119ci sprz\u0119towych akcelerator\u00f3w; oraz do organizacji dost\u0119pu do pami\u0119ci z kilku host\u00f3w bez wej\u015bcia\/wyj\u015bcia sieciowego lub do pami\u0119ci trwa\u0142ej, wykorzystuj\u0105c urz\u0105dzenia oparte na magistrali CXL (Compute Express Link).<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <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 5.0.1.1 - 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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plik\u00f3w DAXFS do listy programist\u00f3w j\u0105dra Linux.","canonical_url":"https:\/\/prohoster.info\/pl\/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":"pl_PL","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 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