{"id":75939,"date":"2020-03-29T19:42:19","date_gmt":"2020-03-29T17:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-cloudflare-podgotovila-patchi-kardinalno-uskoryayushhie-diskovoe-shifrovanie-v-linux"},"modified":"2020-03-29T19:42:19","modified_gmt":"2020-03-29T17:42:19","slug":"kompaniya-cloudflare-podgotovila-patchi-kardinalno-uskoryayushhie-diskovoe-shifrovanie-v-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/kompaniya-cloudflare-podgotovila-patchi-kardinalno-uskoryayushhie-diskovoe-shifrovanie-v-linux","title":{"rendered":"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Cloudflare'i arendajad <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.cloudflare.com\/speeding-up-linux-disk-encryption\/\">r\u00e4\u00e4kinud<\/a><\/noindex> teatasid t\u00f6\u00f6st, mis keskendub Linuxi tuuma kettasalvestamise kr\u00fcpteerimise j\u00f5udluse optimeerimisele. Tulemuseks on valmistatud <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/linux\/tree\/master\/patches\">pat\u0161id<\/a><\/noindex> alam s\u00fcsteemile <noindex><a rel=\"nofollow\" href=\"https:\/\/gitlab.com\/cryptsetup\/cryptsetup\/-\/wikis\/DMCrypt\">dm-crypt<\/a><\/noindex> ja Crypto API, mis v\u00f5imaldasid s\u00fcnteetilises testis t\u00f5sta lugemise ja kirjutamise l\u00e4bilaskev\u00f5imet rohkem kui kaks korda ning poole v\u00f5rra v\u00e4hendada viivitusi. Reaalsete seadmetega testimise k\u00e4igus \u00f5nnestus kr\u00fcpteerimise kulusid v\u00e4hendada praktiliselt samale tasemele, mis on t\u00e4heldatud ketta kasutamisel ilma andmete kr\u00fcpteerimiseta.<\/p>\n<p>Cloudflare kasutab dm-crypt'i andmete kr\u00fcpteerimiseks salvestites, mida kasutatakse sisu vahem\u00e4llu salvestamiseks CDN-v\u00f5rgus. Dm-crypt t\u00f6\u00f6tab plokkseadmestikul ja teostab kirjutamise sisendi\/v\u00e4ljundi p\u00e4ringute kr\u00fcpteerimist ning lugemise p\u00e4ringute dekr\u00fcpteerimist, olles sillaks plokkseadmestiku ja failis\u00fcsteemi draiveri vahel. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/storage-stack.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/85a5ec907119f64eb19edadfc80011a6.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>dm-crypt'i j\u00f5udluse hindamiseks kasutades paketti <noindex><a rel=\"nofollow\" href=\"https:\/\/fio.readthedocs.io\/en\/latest\/fio_doc.html\">Flexible I\/O tester<\/a><\/noindex> tehti testimine kr\u00fcpteeritud ja kr\u00fcpteerimata osade kiirusest RAM-diskil, mis asub RAM-is, et v\u00e4ltida kettaj\u00f5udluse k\u00f5ikumisi ning keskenduda koodi j\u00f5udlusele. Kr\u00fcpteerimata osade lugemise ja kirjutamise j\u00f5udlus p\u00fcsis tasemel 1126 MB\/s, kuid kr\u00fcpteerimise sissel\u00fclitamisel langes kiirus <b>7 korda<\/b> ja oli 147 MB\/s. <\/p>\n<p>\u0412\u043d\u0430\u0447\u0430\u043b\u0435 \u0432\u043e\u0437\u043d\u0438\u043a\u043b\u043e \u043f\u043e\u0434\u043e\u0437\u0440\u0435\u043d\u0438\u0435 \u0432 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043d\u0435\u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432 \u0432 \u043a\u0440\u0438\u043f\u0442\u043e\u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u044f\u0434\u0440\u0430. \u041d\u043e \u0432 \u0442\u0435\u0441\u0442\u0430\u0445 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u044b\u0439 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c aes-xts \u0441 256 \u043a\u043b\u044e\u0447\u043e\u043c \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 &#171;cryptsetup benchmark&#187; \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u0432\u044b\u0448\u0435, \u0447\u0435\u043c \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u0438 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 RAM-\u0434\u0438\u0441\u043a\u0430 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442. \u042d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u044b \u0441 \u0444\u043b\u0430\u0433\u0430\u043c\u0438 dm-crypt  \u0434\u043b\u044f \u0442\u044e\u043d\u0438\u043d\u0433\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043d\u0435 \u0434\u0430\u043b\u0438 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430: \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0444\u043b\u0430\u0433\u0430 &#171;&#8212;perf-same_cpu_crypt&#187; \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0434\u0430\u0436\u0435 \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u043b\u0430\u0441\u044c \u0434\u043e 136 MB\/s, \u0430 \u043f\u0440\u0438 \u0443\u043a\u0430\u0437\u0430\u043d\u0438\u0438 \u0444\u043b\u0430\u0433\u0430 &#171;&#8212;perf-submit_from_crypt_cpus&#187; \u0432\u043e\u0437\u0440\u043e\u0441\u043b\u0430 \u043b\u0438\u0448\u044c \u0434\u043e 166 MB\/s.<\/p>\n<p>\u0411\u043e\u043b\u0435\u0435 \u0433\u043b\u0443\u0431\u043e\u043a\u0438\u0439 \u0440\u0430\u0437\u0431\u043e\u0440 \u043b\u043e\u0433\u0438\u043a\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e\u043a\u0430\u0437\u0430\u043b, \u0447\u0442\u043e dm-crypt \u043d\u0435 \u0442\u0430\u043a \u043f\u0440\u043e\u0441\u0442 \u043a\u0430\u043a \u043a\u0430\u0436\u0435\u0442\u0441\u044f &#8212; \u043f\u0440\u0438 \u043f\u043e\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u043e\u0442 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0424\u0421 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u044c, dm-crypt \u043d\u0435 \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u0435\u0433\u043e \u0441\u0440\u0430\u0437\u0443, \u0430 \u043f\u043e\u043c\u0435\u0449\u0430\u0435\u0442 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c &#171;kcryptd&#187;, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0435\u0442\u0441\u044f \u043d\u0435 \u0441\u0440\u0430\u0437\u0443, \u0430 \u043f\u0440\u0438 \u043d\u0430\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u0443\u0434\u043e\u0431\u043d\u043e\u0433\u043e \u043c\u043e\u043c\u0435\u043d\u0442\u0430. \u0418\u0437 \u043e\u0447\u0435\u0440\u0435\u0434\u0438 \u0437\u0430\u043f\u0440\u043e\u0441 \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 Linux Crypto API \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u041d\u043e \u0442\u0430\u043a \u043a\u0430\u043a  Crypto API \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u0443\u044e \u043c\u043e\u0434\u0435\u043b\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f, \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0435 \u0441\u0440\u0430\u0437\u0443, \u0430 \u043c\u0438\u043d\u0443\u044f \u0435\u0449\u0451 \u043e\u0434\u043d\u0443 \u043e\u0447\u0435\u0440\u0435\u0434\u044c. \u041f\u043e\u0441\u043b\u0435 \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f dm-crypt \u043c\u043e\u0436\u0435\u0442 \u043f\u044b\u0442\u0430\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u043a\u0443 \u043e\u0436\u0438\u0434\u0430\u044e\u0449\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u044c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0434\u0435\u0440\u0435\u0432\u043e \u043f\u043e\u0438\u0441\u043a\u0430 <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9A%D1%80%D0%B0%D1%81%D0%BD%D0%BE-%D1%87%D1%91%D1%80%D0%BD%D0%BE%D0%B5_%D0%B4%D0%B5%D1%80%D0%B5%D0%B2%D0%BE\">punane-must<\/a><\/noindex>. L\u00f5puks haarab eraldi s\u00fcdamikku voog taas teatud viivitusega kogunenud sisendi\/-v\u00e4ljade p\u00e4ringud ja saadab need blokeeringu seadme staaki.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/dm-crypt.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/2b64e1e781d01d3735c9ba81411ec026.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>\u041f\u0440\u0438 \u0447\u0442\u0435\u043d\u0438\u0438 \u0432\u043d\u0430\u0447\u0430\u043b\u0435 dm-crypt \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c &#171;kcryptd_io&#187; \u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f. \u0427\u0435\u0440\u0435\u0437 \u043a\u0430\u043a\u043e\u0435-\u0442\u043e \u0432\u0440\u0435\u043c\u044f \u0434\u0430\u043d\u043d\u044b\u0435 \u0441\u0442\u0430\u043d\u043e\u0432\u044f\u0442\u0441\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u0438 \u043f\u043e\u043c\u0435\u0449\u0430\u044e\u0442\u0441\u044f \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c &#171;kcryptd&#187; \u0434\u043b\u044f \u0440\u0430\u0441\u0448\u0438\u0444\u0440\u043e\u0432\u043a\u0438.<br \/>\nKcryptd saadab p\u00e4ringu Linux Crypto API-le, mis dekr\u00fcpteerib informatsiooni as\u00fcnkroonselt. P\u00e4ringud ei l\u00e4bida alati k\u00f5iki j\u00e4rjekordi, kuid halvimatel juhtudel v\u00f5ib kirjutamissoov j\u00e4\u00e4da j\u00e4rjekordadesse kuni 4 korda, samas lugemissoov kuni 3 korda. Iga j\u00e4rjekorda sattumine toob kaasa viivitusi, mis on dm-crypti m\u00e4rgatava j\u00f5udluse languse peamine p\u00f5hjus. <\/p>\n<p>\u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u043e\u0447\u0435\u0440\u0435\u0434\u0435\u0439 \u043e\u0431\u0443\u0441\u043b\u043e\u0432\u043b\u0435\u043d\u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c\u044e \u0440\u0430\u0431\u043e\u0442\u044b \u0432 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u0432\u043e\u0437\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u044f \u043f\u0440\u0435\u0440\u044b\u0432\u0430\u043d\u0438\u0439. \u0412 2005 \u0433\u043e\u0434\u0443, \u043a\u043e\u0433\u0434\u0430 \u0431\u044b\u043b\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0442\u0435\u043a\u0443\u0449\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c \u0440\u0430\u0431\u043e\u0442\u044b dm-crypt \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043e\u0447\u0435\u0440\u0435\u0434\u0435\u0439, Crypto API  \u0435\u0449\u0451 \u043d\u0435 \u0431\u044b\u043b \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u043c. \u041f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 Crypto API \u043d\u0430 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u0443\u044e \u043c\u043e\u0434\u0435\u043b\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0442\u0430\u043b\u0430 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u043f\u043e \u0441\u0443\u0442\u0438 \u0434\u0432\u043e\u0439\u043d\u0430\u044f \u0437\u0430\u0449\u0438\u0442\u0430. \u041e\u0447\u0435\u0440\u0435\u0434\u0438 \u0442\u0430\u043a\u0436\u0435 \u0432\u0432\u043e\u0434\u0438\u043b\u0438\u0441\u044c \u0434\u043b\u044f \u044d\u043a\u043e\u043d\u043e\u043c\u0438\u0438 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0435\u043a\u0430 \u044f\u0434\u0440\u0430, \u043d\u043e \u043f\u043e\u0441\u043b\u0435 \u0435\u0433\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f \u0432  2014 \u0433\u043e\u0434\u0443 \u0434\u0430\u043d\u043d\u044b\u0435 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u0442\u0435\u0440\u044f\u043b\u0438 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c. \u0414\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u043e\u0447\u0435\u0440\u0435\u0434\u044c &#171;kcryptd_io&#187; \u0431\u044b\u043b\u0430 \u0432\u0432\u0435\u0434\u0435\u043d\u0430 \u0434\u043b\u044f \u043f\u0440\u0435\u043e\u0434\u043e\u043b\u0435\u043d\u0438\u044f \u0443\u0437\u043a\u043e\u0433\u043e \u043c\u0435\u0441\u0442\u0430, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0435\u0433\u043e \u043a \u043e\u0436\u0438\u0434\u0430\u043d\u0438\u044e \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438 \u043f\u043e\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0447\u0438\u0441\u043b\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432. \u0412 2015 \u0433\u043e\u0434\u0443 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0431\u044b\u043b\u0430 \u0432\u0432\u0435\u0434\u0435\u043d\u0430 \u0444\u0430\u0437\u0430 \u0441\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u043a\u0438, \u0442\u0430\u043a \u043a\u0430\u043a \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u043c\u043e\u0433\u043b\u0438 \u0437\u0430\u0432\u0435\u0440\u0448\u0430\u0442\u044c\u0441\u044f \u043d\u0435 \u0441\u043e\u0431\u043b\u044e\u0434\u0430\u044f \u043f\u043e\u0440\u044f\u0434\u043e\u043a \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 (\u0432\u043c\u0435\u0441\u0442\u043e \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0434\u0438\u0441\u043a\u0443, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u043b\u0441\u044f \u0434\u043e\u0441\u0442\u0443\u043f \u0432 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e\u043c \u043f\u043e\u0440\u044f\u0434\u043a\u0435, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u0435 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u043b \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a CFQ). \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 SSD-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439 \u0441\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u043a\u0430 \u043f\u043e\u0442\u0435\u0440\u044f\u043b\u0430 \u0441\u043c\u044b\u0441\u043b, \u0430 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a CFQ \u0443\u0436\u0435 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 \u044f\u0434\u0440\u0435.<\/p>\n<p>Arvestades, et t\u00e4nap\u00e4eva m\u00e4luseadmed on muutunud kiiremateks ja nutikamateks, on Linuxi tuuma ressursside jaotuss\u00fcsteem \u00fcle vaadatud ning m\u00f5ned alams\u00fcsteemid on uuesti v\u00e4lja t\u00f6\u00f6tatud, Cloudflare'i insenerid <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/linux\/blob\/master\/patches\/0023-Add-DM_CRYPT_FORCE_INLINE-flag-to-dm-crypt-target.patch\">lisanud<\/a><\/noindex> \u0432 dm-crypt \u043d\u043e\u0432\u044b\u0439 \u0440\u0435\u0436\u0438\u043c \u0440\u0430\u0431\u043e\u0442\u044b, \u0438\u0437\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u043e\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u043b\u0438\u0448\u043d\u0438\u0445 \u043e\u0447\u0435\u0440\u0435\u0434\u0435\u0439 \u0438 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b\u0445 \u0432\u044b\u0437\u043e\u0432\u043e\u0432. \u0420\u0435\u0436\u0438\u043c \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u043c \u0444\u043b\u0430\u0433\u043e\u043c &#171;force_inline&#187; \u0438 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 dm-crypt \u043a \u0444\u043e\u0440\u043c\u0435 \u043f\u0440\u043e\u0441\u0442\u043e\u0433\u043e \u043f\u0440\u043e\u043a\u0441\u0438, \u0448\u0438\u0444\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u0438 \u0440\u0430\u0441\u0448\u0438\u0444\u0440\u043e\u0432\u044b\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u044b. \u0412\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0441 Crypto API \u0431\u044b\u043b\u043e \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043e \u044f\u0432\u043d\u044b\u043c \u0432\u044b\u0431\u043e\u0440\u043e\u043c \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u0432 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u0432 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u043c \u0440\u0435\u0436\u0438\u043c\u0435 \u0438 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u043e\u0447\u0435\u0440\u0435\u0434\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432. \u0414\u043b\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0441  Crypto API \u0431\u044b\u043b <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cloudflare\/linux\/blob\/master\/patches\/0024-Add-xtsproxy-Crypto-API-module.patch\">on pakutud<\/a><\/noindex> moodul, mis v\u00f5imaldab kasutada FPU\/AES-NI kiirusenamuse saavutamiseks ning suunab otse kr\u00fcpteerimis- ja dekr\u00fcpteerimistaotlusi l\u00e4bi.<\/p>\n<p>\u0412 \u0438\u0442\u043e\u0433\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043f\u0440\u0438 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 RAM-\u0434\u0438\u0441\u043a\u0430 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c dm-crypt &#8212; \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0432\u043e\u0437\u0440\u043e\u0441\u043b\u0430 \u0441 294 MB\/s (2 x 147 MB\/s) \u0434\u043e 640 MB\/s, \u0447\u0442\u043e \u043e\u0447\u0435\u043d\u044c \u0431\u043b\u0438\u0437\u043a\u043e \u043a \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0433\u043e\u043b\u043e\u0433\u043e \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f  (696 MB\/s).<br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/read-throughput-annotated.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/d7f7edcc0251f0fbc0fd3095cce8f8a0.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/write-throughput-annotated.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/2c9fd0549da22ee1987a166604f69c0b.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/await-annotated.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/a0c9d02ef10ad90b2deaeddde0e2434b.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Reaalsetel serveritel koormustestimise k\u00e4igus n\u00e4itas uus teostus tulemuslikkust, mis on v\u00e4ga l\u00e4hedane konfigureerimisele, mis t\u00f6\u00f6tab ilma kr\u00fcpteerimiseta, ja kr\u00fcpteerimise lubamine serverites, kus on Cloudflare'i vahem\u00e4lu, ei m\u00f5jutanud vastamise kiiruset. Edaspidi kavatseb Cloudflare viia ettevalmistatud plaastrid p\u00f5hituuma Linuxi koostisosasse, kuid enne seda tuleb neid t\u00f5hususe t\u00f5stmiseks \u00fcmber teha, kuna need on optimeeritud teatud koormuse jaoks ja ei h\u00f5lma k\u00f5iki kasutusvaldkondi, n\u00e4iteks kr\u00fcpteerimist madala v\u00f5imsusega integreeritud seadmetes.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/blog-cloudflare-com-assets.storage.googleapis.com\/2020\/03\/prod.png\"><img decoding=\"async\" alt=\"Ettev\u00f5te Cloudflare on valmistanud parandused, mis kiirendavad oluliselt kettakr\u00fcptimist Linuxis.\" src=\"\/wp-content\/uploads\/2020\/03\/cad243a99fa04bb74f5e6a25ae2e7b3e.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/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=52630\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Cloudflare \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u043b\u0438 \u043e \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0434\u0438\u0441\u043a\u043e\u0432\u043e\u0433\u043e \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u044f\u0434\u0440\u0435 Linux. \u0412 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0431\u044b\u043b\u0438 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u043f\u0430\u0442\u0447\u0438 \u0434\u043b\u044f \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b dm-crypt \u0438 Crypto API, \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0432\u0448\u0438\u0435 \u0432 \u0441\u0438\u043d\u0442\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0442\u0435\u0441\u0442\u0435 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u0443\u044e \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u0447\u0442\u0435\u043d\u0438\u0438 \u0438 \u0437\u0430\u043f\u0438\u0441\u0438, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u0437\u0430\u0434\u0435\u0440\u0436\u043a\u0438. \u041f\u0440\u0438 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