{"id":90292,"date":"2020-07-30T13:42:26","date_gmt":"2020-07-30T11:42:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vo-freebsd-sushhestvenno-optimizirovany-operaczii-poiska-v-vfs"},"modified":"2020-07-30T13:42:26","modified_gmt":"2020-07-30T11:42:26","slug":"vo-freebsd-sushhestvenno-optimizirovany-operaczii-poiska-v-vfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vo-freebsd-sushhestvenno-optimizirovany-operaczii-poiska-v-vfs","title":{"rendered":"Ve FreeBSD byly operace vyhled\u00e1v\u00e1n\u00ed v VFS v\u00fdrazn\u011b optimalizov\u00e1ny.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ve FreeBSD byla provedena zm\u011bna<\/a><\/noindex>, kter\u00e1 umo\u017e\u0148uje prov\u00e1d\u011bt operace vyhled\u00e1v\u00e1n\u00ed ve VFS bez z\u00e1mk\u016f (lockless lookup). Optimalizace byla implementov\u00e1na pro souborov\u00e9 syst\u00e9my TmpFS<\/a><\/noindex>, UFS<\/a><\/noindex> a ZFS<\/a><\/noindex>, ale zat\u00edm se nevztahuje na ACL, Capsicum, p\u0159\u00edstup k souborov\u00fdm popisova\u010d\u016fm, symbolick\u00e9 odkazy a \u201e..\u201c v cest\u00e1ch. Pro uveden\u00e9 mo\u017enosti se prov\u00e1d\u00ed n\u00e1vrat na star\u00fd mechanismus ur\u010den\u00ed soubor\u016f.<\/p>\n

Test proveden\u00fd na TmpFS, kter\u00fd m\u011b\u0159il dobu p\u0159\u00edstupu k r\u016fzn\u00fdm soubor\u016fm, uk\u00e1zal zv\u00fd\u0161en\u00ed v\u00fdkonu z 2165816 na 151216530 operac\u00ed za sekundu (n\u00e1r\u016fst o 69x). Jin\u00fd test uk\u00e1zal sn\u00ed\u017een\u00ed doby vykon\u00e1n\u00ed \u00falohy z 23 na 14 sekund.<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412\u043e FreeBSD \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u043e\u0438\u0441\u043a\u0430 \u0432 VFS \u0431\u0435\u0437 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a (lockless lookup). \u041e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u044b \u0434\u043b\u044f \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c TmpFS, UFS \u0438 ZFS, \u043d\u043e \u043f\u043e\u043a\u0430 \u043d\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043d\u0430 ACL, Capsicum, \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u043c \u0434\u0435\u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0440\u0430\u043c, \u0441\u0438\u043c\u0432\u043e\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0441\u044b\u043b\u043a\u0438 \u0438 «..» \u0432 \u043f\u0443\u0442\u044f\u0445. \u0414\u043b\u044f \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0445 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0442\u043a\u0430\u0442 \u043d\u0430 \u0441\u0442\u0430\u0440\u044b\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0444\u0430\u0439\u043b\u043e\u0432. \u041f\u0440\u043e\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0439 \u043d\u0430 TmpFS \u0442\u0435\u0441\u0442, \u0438\u0437\u043c\u0435\u0440\u044f\u044e\u0449\u0438\u0439 […]<\/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-90292","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\udd47Ve FreeBSD byly v\u00fdrazn\u011b optimalizov\u00e1ny operace vyhled\u00e1v\u00e1n\u00ed ve VFS | ProHoster","description":"Ve FreeBSD byly provedeny zm\u011bny, kter\u00e9 umo\u017e\u0148uj\u00ed prov\u00e1d\u011bt operace vyhled\u00e1v\u00e1n\u00ed ve VFS bez z\u00e1mk\u016f (lockless 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