{"id":55519,"date":"2020-01-22T00:00:00","date_gmt":"2020-01-21T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/dlya-btrfs-predstavlena-asinhronnaya-realizatsiya-discard"},"modified":"2020-02-18T14:03:38","modified_gmt":"2020-02-18T11:03:38","slug":"dlya-btrfs-predstavlena-asinhronnaya-realizatsiya-discard","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/dlya-btrfs-predstavlena-asinhronnaya-realizatsiya-discard","title":{"rendered":"Btrfs jaoks on esitatud as\u00fcnkrone DISCARD teostus","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Btrfs failis\u00fcsteemi jaoks <noindex><a rel=\"nofollow\" href=\"https:\/\/git.kernel.org\/pub\/scm\/linux\/kernel\/git\/kdave\/linux.git\/commit\/?h=for-next&#038;id=717b684118e3c3c73e4beeea8535b3bb90c33ebb\">esitati<\/a><\/noindex> Facebooki inseneride poolt rakendatud as\u00fcnkroonne DISCARD-operatsiooni (vabastatud blokksiltide m\u00e4rgistamine, mida ei pea f\u00fc\u00fcsiliselt enam s\u00e4ilitama) teostamine.<\/p>\n<p>Probleemi sisu: algses DISCARD-i rakenduses toimub teostamine koos teiste operatsioonidega s\u00fcsrooniliselt, mis m\u00f5nel juhul p\u00f5hjustab j\u00f5udluse probleeme, kuna tuleb oodata, kuni vastavad k\u00e4sud kettaseadmest l\u00f5petatakse, mis n\u00f5uab t\u00e4iendavat aega. See v\u00f5ib muutuda probleemiks, kui kettaseadmest DISCARD-i rakendamine t\u00f6\u00f6tab aeglaselt. <\/p>\n<p>As\u00fcnkroonse rakenduse puhul ei pea oodata DISCARD-i l\u00f5petamist kettaseadmest FS-i tavalise t\u00f6\u00f6 k\u00e4igus, mis lahendab probleemi, muutes selle operatsiooni taustaks. Esitatud rakendus viib l\u00e4bi ka m\u00f5ningaid optimeerimisi. N\u00e4iteks ootab see m\u00f5nda aega, et kaaluda, kas blokki v\u00f5iks varsti uuesti kasutada, nii et DISCARD-i teostamine poleks m\u00f5istlik, ning \u00fcritab koondada piirkondi enne DISCARD-i tegelikku teostamist, et v\u00e4hendada \u00fcldiste toimingute arvu.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52228\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043b\u044f \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b btrfs \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 DISCARD (\u043f\u043e\u043c\u0435\u0442\u043a\u0430 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u044b\u0445 \u0431\u043b\u043e\u043a\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u0436\u0435 \u043c\u043e\u0436\u043d\u043e \u043d\u0435 \u0445\u0440\u0430\u043d\u0438\u0442\u044c \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438), \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Facebook. \u0421\u0443\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b: \u0432 \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 DISCARD \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e \u0441 \u043e\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f\u043c\u0438, \u0447\u0442\u043e \u0432 \u0440\u044f\u0434\u0435 \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043e\u0436\u0438\u0434\u0430\u0442\u044c \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u043a\u043e\u043c\u0430\u043d\u0434 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u043c\u0438, \u0447\u0442\u043e \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f. \u042d\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u0441\u0442\u0430\u0442\u044c [&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-55519","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=\"\u0414\u043b\u044f \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b btrfs \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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