{"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\/pl\/blog\/news\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","title":{"rendered":"Dla j\u0105dra Linux przygotowano optymalizacje, kt\u00f3re zwi\u0119kszaj\u0105 wydajno\u015b\u0107 planer\u00f3w wej\u015bcia\/wyj\u015bcia.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jens Axboe, tw\u00f3rca io_uring oraz planer\u00f3w wej\u015bcia\/wyj\u015bcia CFQ, Deadline i Noop, kontynuuje swoje eksperymenty z optymalizacj\u0105 wej\u015bcia\/wyj\u015bcia w j\u0105drze Linux. Tym razem zwr\u00f3ci\u0142 uwag\u0119 na planery wej\u015bcia\/wyj\u015bcia BFQ i mq-deadline, kt\u00f3re okaza\u0142y si\u0119 w\u0105skim gard\u0142em przynajmniej w przypadku szybkich dysk\u00f3w NVMe. <\/p>\n

Jak pokazuje analiza sytuacji, jednym z kluczowych powod\u00f3w nieoptymalnej wydajno\u015bci subsystem\u00f3w planowania wej\u015bcia\/wyj\u015bcia by\u0142y problemy z konkurencyjnymi blokadami (\"lock contention\", pr\u00f3ba uzyskania blokady, kt\u00f3ra jest trzymana przez inny w\u0105tek). Dzi\u0119ki \u015brodkom skupionym na redukcji konkurencji podczas obs\u0142ugi blokad, takim jak serializacja dyspozycji i wstawianie zapyta\u0144, pr\u0119dko\u015b\u0107 pracy planist\u00f3w znacznie wzros\u0142a w wielu przypadkach (w IOPS). <\/p>\n

Podczas testowania planera BFQ za pomoc\u0105 narz\u0119dzia fio, wydajno\u015b\u0107 wzros\u0142a z 567K do 1551K operacji wej\u015bcia\/wyj\u015bcia na sekund\u0119, a konkurencja blokad spad\u0142a z 96% do 30%. W przypadku mq-deadline wydajno\u015b\u0107 po zastosowaniu proponowanych poprawek przy u\u017cyciu dysku NVMe wzros\u0142a z 1070K do 2560K operacji wej\u015bcia\/wyj\u015bcia na sekund\u0119 (IOPS), a konkurencja blokad spad\u0142a z 94% do 23%.
\n
\u0179r\u00f3d\u0142o: 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\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\udd47Dla j\u0105dra Linux przygotowano optymalizacje, kt\u00f3re zwi\u0119kszaj\u0105 wydajno\u015b\u0107 planer\u00f3w wej\u015bcia\/wyj\u015bcia | ProHoster","description":"Jens Axboe, tw\u00f3rca io_uring oraz planer\u00f3w wej\u015bcia\/wyj\u015bcia CFQ, Deadline i Noop, kontynuuje swoje eksperymenty z optymalizacj\u0105 wej\u015bcia\/wyj\u015bcia w j\u0105drze Linux.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/dlya-yadra-linux-podgotovleny-optimizaczii-povyshayushhie-proizvoditelnost-planirovshhikov-vvoda-vyvoda","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\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\/pl\/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\/pl\/wp-json\/wp\/v2\/posts\/113046","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/comments?post=113046"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/113046\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/media?parent=113046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/categories?post=113046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/tags?post=113046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}