{"id":84600,"date":"2020-06-09T13:42:10","date_gmt":"2020-06-09T11:42:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-canonical-predlozhila-patchi-dlya-uskoreniya-aktivaczii-spyashhego-rezhima"},"modified":"2020-06-09T13:42:10","modified_gmt":"2020-06-09T11:42:10","slug":"kompaniya-canonical-predlozhila-patchi-dlya-uskoreniya-aktivaczii-spyashhego-rezhima","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/kompaniya-canonical-predlozhila-patchi-dlya-uskoreniya-aktivaczii-spyashhego-rezhima","title":{"rendered":"Ettev\u00f5te Canonical pakkus kiirusparandusi une t\u00f6\u00f6re\u017eiimi aktiveerimiseks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Firma Canonical <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2020\/6\/1\/684\">pakkus<\/a><\/noindex> Linuxi tuumade arendajate postitusloendis on komplekt pat\u0161e rakenduse jaoks <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2020\/6\/1\/686\">opportunistlik m\u00e4lu vabastamine<\/a><\/noindex> (&#171;opportunistic memory reclaim&#187;), mis v\u00f5imaldab m\u00e4rkimisv\u00e4\u00e4rselt v\u00e4hendada uinumise aega. Optimeerimine saavutatakse sekundaarsete m\u00e4lustruktuuride vabastamise operatsiooni proaktiivse kutsumise kaudu, mis ei sisalda unikaalseid andmeid ja saab p\u00e4rast uinumisest naasmist d\u00fcnaamiliselt taastada (n\u00e4iteks alad <noindex><a rel=\"nofollow\" href=\"https:\/\/landley.net\/writing\/memory-faq.txt\">anon\u00fc\u00fcmsest m\u00e4lust<\/a><\/noindex> ja erinevad m\u00e4lu lehek\u00fclgede vahem\u00e4lud). Peamine idee on see, et p\u00e4rast liigsete andmete eemaldamist v\u00e4heneb m\u00e4lu pildi suurus, mis salvestatakse enne unere\u017eiimi sisenemist, ning seega on selle kirjutamiseks ja aeglasest m\u00e4luseadmest lugemiseks v\u00e4hem aega.<\/p>\n<p>Vaikimisi, kui m\u00e4lu h\u00e4lli salvestatakse uinumiseks, salvestab kernel m\u00e4lu sellisena, nagu see on, koos k\u00f5ikide vahem\u00e4gedega, kuid on olemas loomulik v\u00f5imalus vabastada liigseid struktuure, simuleerides algfaasis ressursside nappuse tingimusi uinumisel. Seda v\u00f5imalust saab aktiveerida parameetri &#171;\/sys\/power\/image_size&#187; abil ja see toob kaasa m\u00e4rgatava v\u00e4henemise uinumise ajas. Canonical soovitab lisada veel kaks parameetrit &#171;\/sys\/power\/mm_reclaim\/run&#187; ja<br \/>\n&#171;\/sys\/power\/mm_reclaim\/release&#187;, mis v\u00f5imaldavad vabastada liigseid struktuure ette, et uinumine toimuks v\u00f5imalikult kiiresti ning uinumisest naasmine kestaks ligikaudu sama kaua, nagu juba olemasoleva kerneliparameetri &#171;\/sys\/power\/image_size&#187; kasutamisel.<\/p>\n<p>8 GB RAM ja 8 GB vahetusruumiga s\u00fcsteemis tehtud testimine, mille k\u00e4igus kasutati 85% m\u00e4lust, n\u00e4itas vaikeseadetega (image_size=default) unere\u017eiimi sisenemise aja v\u00e4henemist 51.56 sekundilt 4.19 sekundile, kui algatati \u00fcleliigse m\u00e4lu puhastamise protsess 60 sekundit enne unere\u017eiimi sisenemist. Salvestatud m\u00e4lupildi suuruse v\u00e4hendamise t\u00f5ttu v\u00e4henes taastumisaeg 26.34 sekundilt 5 sekundile. Kui s\u00fcsteemi standardne \u00fcleliigse m\u00e4lu puhastamise re\u017eiim (image_size=0) oli lubatud, v\u00e4henes unere\u017eiimi sisenemise aeg 73.22 sekundilt 5.36 sekundile, samas kui unere\u017eiimist tagasi tulemise aeg muutus praktiliselt olematuks (v\u00e4henes vaid osakeste sekundite v\u00f5rra, 5.32-lt 5.26 sekundile).<\/p>\n<p>Pakutud meetod v\u00f5ib osutuda kasulikuks olukordades, kus on vajalik v\u00e4ga kiiresti unere\u017eiimi siseneda ja on v\u00f5imalik ette n\u00e4ha, et selline \u00fcleminek on vajalik. N\u00e4iteks pilves\u00fcsteemides madalprioriteetsed virtuaalsed keskkonnad (<noindex><a rel=\"nofollow\" href=\"https:\/\/docs.aws.amazon.com\/AWSEC2\/latest\/UserGuide\/using-spot-instances.html\">spot-\u00fcmbritsed<\/a><\/noindex> Amazon EC2-s saavad d\u00fcnaamiliselt siseneda ootere\u017eiimi ja vabastada kasutatav m\u00e4lu, kui algsete keskkondade ressursikasutus suureneb. Algsete keskkondade koormuse v\u00e4henedes naasevad madala prioriteediga keskkonnad ootere\u017eiimist. Antud tingimustes on teenuse \u00f5ige kvaliteedi s\u00e4ilitamiseks oluline minimaalne \u00fclemineku aeg ootere\u017eiimi ja sellest v\u00e4ljumiseks. Ennetava puhastamise faasi saab alustada, kui saavutatakse teatud m\u00e4\u00e4r koormusest, mis eelneb tasemele, mis viib madala prioriteediga keskkondade k\u00fclmutamiseni.<\/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=53119\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0430 \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043e\u043f\u043f\u043e\u0440\u0442\u0443\u043d\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0447\u0438\u0441\u0442\u043a\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 (&#171;opportunistic memory reclaim&#187;), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u0432\u0440\u0435\u043c\u044f \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u0432 \u0441\u043f\u044f\u0449\u0438\u0439 \u0440\u0435\u0436\u0438\u043c. \u041e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u044f \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u0435\u0442\u0441\u044f \u0437\u0430 \u0441\u0447\u0451\u0442 \u0443\u043f\u0440\u0435\u0436\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u0437\u043e\u0432\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0432\u044b\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0432\u0442\u043e\u0440\u0438\u0447\u043d\u044b\u0445 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440 \u043f\u0430\u043c\u044f\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u0435 \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u0442 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u0439 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438 \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u044b \u043f\u043e\u0441\u043b\u0435 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0438\u0437 \u0441\u043f\u044f\u0449\u0435\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0430 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043e\u0431\u043b\u0430\u0441\u0442\u0438 [&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-84600","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0430 \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043e\u043f\u043f\u043e\u0440\u0442\u0443\u043d\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0447\u0438\u0441\u0442\u043a\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 (&quot;opportunistic memory reclaim&quot;), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u0432\u0440\u0435\u043c\u044f \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u0432 \u0441\u043f\u044f\u0449\u0438\u0439 \u0440\u0435\u0436\u0438\u043c. \u041e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u044f \u0434\u043e\u0441\u0442\u0438\u0433\u0430\u0435\u0442\u0441\u044f \u0437\u0430 \u0441\u0447\u0451\u0442 \u0443\u043f\u0440\u0435\u0436\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u0437\u043e\u0432\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0432\u044b\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f 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