{"id":113046,"date":"2024-01-22T11:28:02","date_gmt":"2024-01-22T09:28:02","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda"},"modified":"2024-01-22T11:28:02","modified_gmt":"2024-01-22T09:28:02","slug":"dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","title":{"rendered":"Pro j\u00e1dro Linux byly p\u0159ipraveny optimalizace zvy\u0161uj\u00edc\u00ed v\u00fdkon pl\u00e1nova\u010d\u016f vstupu\/v\u00fdstupu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jens Axboe, tv\u016frce io_uring a pl\u00e1nova\u010d\u016f I\/O CFQ, Deadline a Noop, pokra\u010doval ve sv\u00fdch pokusech s optimalizac\u00ed vstupu\/v\u00fdstupu v j\u00e1d\u0159e Linux. Tentokr\u00e1t se zam\u011b\u0159il na pl\u00e1nova\u010de I\/O BFQ a mq-deadline, kter\u00e9 se uk\u00e1zaly jako \u00fazk\u00e9 hrdlo alespo\u0148 v p\u0159\u00edpad\u011b rychl\u00fdch NVMe \u00falo\u017ei\u0161\u0165. <\/p>\n

Jak uk\u00e1zala anal\u00fdza situace, jedn\u00edm z kl\u00ed\u010dov\u00fdch d\u016fvod\u016f suboptim\u00e1ln\u00ed v\u00fdkonnosti subsyst\u00e9m\u016f pl\u00e1nova\u010d\u016f vstupu\/v\u00fdstupu byly probl\u00e9my se sout\u011b\u017en\u00edmi z\u00e1mky (\"lock contention\", pokus o z\u00edsk\u00e1n\u00ed z\u00e1mku, kter\u00fd dr\u017e\u00ed jin\u00fd vl\u00e1kno). D\u00edky opat\u0159en\u00edm zam\u011b\u0159en\u00fdm na sn\u00ed\u017een\u00ed sout\u011b\u017ee p\u0159i zpracov\u00e1n\u00ed z\u00e1mk\u016f, jako je serializace pl\u00e1nov\u00e1n\u00ed a vkl\u00e1d\u00e1n\u00ed po\u017eadavk\u016f, se rychlost pl\u00e1nova\u010d\u016f v \u0159ad\u011b p\u0159\u00edpad\u016f zv\u00fd\u0161ila n\u011bkolikr\u00e1t (v IOPS). <\/p>\n

P\u0159i testov\u00e1n\u00ed pl\u00e1nova\u010de BFQ n\u00e1strojem fio se v\u00fdkon zv\u00fd\u0161il z 567K na 1551K operac\u00ed I\/O za sekundu, zat\u00edmco sout\u011b\u017e o z\u00e1mky se sn\u00ed\u017eila z 96% na 30%. V p\u0159\u00edpad\u011b mq-deadline se v\u00fdkon po aplikaci navr\u017een\u00fdch patch\u016f p\u0159i pou\u017eit\u00ed NVMe \u00falo\u017ei\u0161t\u011b zv\u00fd\u0161il z 1070K na 2560K operac\u00ed I\/O za sekundu (IOPS), a sout\u011b\u017e o z\u00e1mky klesla z 94% na 23%.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0419\u0435\u043d\u0441 \u042d\u043a\u0441\u0431\u043e (Jens Axboe), \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c io_uring \u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u043e\u0432 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 CFQ, Deadline \u0438 Noop, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u043b \u0441\u0432\u043e\u0438 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u044b \u0441 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 \u0432 \u044f\u0434\u0440\u0435 Linux. \u041d\u0430 \u044d\u0442\u043e\u0442 \u0440\u0430\u0437 \u043f\u043e\u0434 \u0435\u0433\u043e \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043f\u043e\u043f\u0430\u043b\u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0438 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 BFQ \u0438 mq-deadline, \u043e\u043a\u0430\u0437\u0430\u0432\u0448\u0438\u0435\u0441\u044f \u0443\u0437\u043a\u0438\u043c \u043c\u0435\u0441\u0442\u043e\u043c \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u043d\u044b\u0445 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439 NVMe. \u041a\u0430\u043a \u043f\u043e\u043a\u0430\u0437\u0430\u043b\u043e \u0438\u0437\u0443\u0447\u0435\u043d\u0438\u0435 \u0441\u0438\u0442\u0443\u0430\u0446\u0438\u0438, \u043e\u0434\u043d\u043e\u0439 \u0438\u0437 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0445 \u043f\u0440\u0438\u0447\u0438\u043d \u043d\u0435\u043e\u043f\u0442\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c […]<\/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-113046","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\udd47Byly p\u0159ipraveny optimalizace pro j\u00e1dro Linux, kter\u00e9 zvy\u0161uj\u00ed v\u00fdkon pl\u00e1nova\u010d\u016f I\/O | ProHoster","description":"Jens Axboe, tv\u016frce io_uring a pl\u00e1nova\u010d\u016f I\/O CFQ, Deadline a Noop, pokra\u010doval ve sv\u00fdch pokusech s optimalizac\u00ed vstupu\/v\u00fdstupu v j\u00e1d\u0159e Linux.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","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\u0414\u043b\u044f \u044f\u0434\u0440\u0430 Linux \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0438, \u043f\u043e\u0432\u044b\u0448\u0430\u044e\u0449\u0438\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u043e\u0432 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 | ProHoster","og:description":"\u0419\u0435\u043d\u0441 \u042d\u043a\u0441\u0431\u043e (Jens Axboe), \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c io_uring \u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u043e\u0432 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 CFQ, Deadline \u0438 Noop, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u043b \u0441\u0432\u043e\u0438 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u044b \u0441 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 \u0432 \u044f\u0434\u0440\u0435 Linux.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","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":"2024-01-22T09:28:02+00:00","article:modified_time":"2024-01-22T09:28:02+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/113046","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=113046"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/113046\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=113046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=113046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=113046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}