{"id":104512,"date":"2022-06-27T03:36:42","date_gmt":"2022-06-27T01:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/primenenie-asinhronnoj-buferizirovannoj-zapisi-na-baze-io_uring-do-80-raz-snizilo-zaderzhki-v-xfs"},"modified":"2022-06-27T03:36:42","modified_gmt":"2022-06-27T01:36:42","slug":"primenenie-asinhronnoj-buferizirovannoj-zapisi-na-baze-io_uring-do-80-raz-snizilo-zaderzhki-v-xfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/primenenie-asinhronnoj-buferizirovannoj-zapisi-na-baze-io_uring-do-80-raz-snizilo-zaderzhki-v-xfs","title":{"rendered":"Nel progetto containerd \u00e8 stato accettato un insieme di modifiche che integrano il supporto per il runtime runj e aprono la possibilit\u00e0 di utilizzare su FreeBSD immagini di container compatibili con OCI basate su Linux, ad esempio le immagini Docker.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata pubblicata una serie di patch per l'inclusione nel kernel di Linux 5.20, che aggiunge il supporto per la scrittura bufferizzata asincrona nel file system XFS utilizzando il meccanismo io_uring. I test preliminari delle prestazioni, condotti con l'ausilio dell'utility fio (1 thread, dimensione del blocco 4KB, 600 secondi, scrittura sequenziale), mostrano un incremento del numero di operazioni di input\/output al secondo (IOPS) da 77k a 209k, una velocit\u00e0 di trasferimento dei dati da 314MB\/s a 854MB\/s e una riduzione delle latenza da 9600ns a 120ns (80 volte).                      scritture sequenziali:                   senza patch           con patch      libaio     psync    iops:              77k                    209k          195K       233K    bw:               314MB\/s                 854MB\/s       790MB\/s    953MB\/s    clat:            9600ns                   120ns         540ns     3000ns      <\/p>\n<p>Per chi \u00e8 interessato allo stato di io_uring a met\u00e0 del 2022, si raccomanda di consultare le diapositive e la registrazione video della presentazione di Kernel Recipes 2022. Vengono brevemente menzionate le modifiche gi\u00e0 incluse nel kernel e quelle pianificate; per esempio si pu\u00f2 notare il supporto per:  <\/p>\n<ul>\n<li class=\"l\"> accept() multi-shot.\n<li class=\"l\"> multi-shot recv() \u2014 secondo i test, c'\u00e8 un incremento del 6-8% \u2014 da 1.150.000 a 1.200.000 RPS.\n<li class=\"l\"> aggiornamenti e correzioni nella libreria liburing, aggiunta di documentazione e test.  <\/ul>\n<p>Nel contesto della portabilit\u00e0 di io_uring, nelle diapositive si menziona una notevole somiglianza con \u00abI\/O Rings\u00bb, utilizzata nel sottosistema Direct Storage in Windows 11, e la possibilit\u00e0 di implementare un lavoro cross-platform, ma tra le altre piattaforme nel slide dell'autore \u00e8 menzionata solo FreeBSD con un punto interrogativo.    <center>  <div class=\"youtube-placeholder\" data-id=\"v--rVT4RsCE\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/v--rVT4RsCE\/hqdefault.jpg\" alt=\"Guarda il video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57412\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u0441\u0435\u0440\u0438\u044f \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u044f\u0434\u0440\u043e Linux 5.20, \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0439 \u0431\u0443\u0444\u0435\u0440\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u043f\u0438\u0441\u0438 \u0432 \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 XFS \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 io_uring. \u041f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0442\u0435\u0441\u0442\u044b \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u043d\u043d\u044b\u0435 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f fio (1 \u043f\u043e\u0442\u043e\u043a, \u0440\u0430\u0437\u043c\u0435\u0440 \u0431\u043b\u043e\u043a\u0430 4\u043a\u0431, 600 \u0441\u0435\u043a\u0443\u043d\u0434, \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c), \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u0447\u0438\u0441\u043b\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f \u0432\u0432\u043e\u0434\u0430\/\u0432\u044b\u0432\u043e\u0434\u0430 \u0432 \u0441\u0435\u043a\u0443\u043d\u0434\u0443 (IOPS) \u043e\u0442 77k \u0434\u043e 209k, \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043e\u0442 [&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-104512","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=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u0441\u0435\u0440\u0438\u044f \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u044f\u0434\u0440\u043e Linux 5.20, \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0439 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utilizzando il meccanismo io_uring.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/news\/primenenie-asinhronnoj-buferizirovannoj-zapisi-na-baze-io_uring-do-80-raz-snizilo-zaderzhki-v-xfs","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","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\u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u043e\u0439 \u0431\u0443\u0444\u0435\u0440\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u043f\u0438\u0441\u0438 \u043d\u0430 \u0431\u0430\u0437\u0435 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