{"id":460979,"date":"2024-09-22T08:24:49","date_gmt":"2024-09-22T06:24:49","guid":{"rendered":"https:\/\/www.ecinews.fr\/?p=460979"},"modified":"2024-09-21T18:32:41","modified_gmt":"2024-09-21T16:32:41","slug":"linux-est-devenu-officiellement-un-os-temps-reel","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/linux-est-devenu-officiellement-un-os-temps-reel\/","title":{"rendered":"Linux est devenu officiellement un OS temps r\u00e9el"},"content":{"rendered":"<h3>Linux a officiellement adopt\u00e9 des correctifs en temps r\u00e9el dans son syst\u00e8me d&rsquo;exploitation principal afin de fournir des performances en temps r\u00e9el.<\/h3>\n<p>Les capacit\u00e9s en temps r\u00e9el des correctifs PREEMPT_RT pour le noyau ont \u00e9t\u00e9 officiellement fusionn\u00e9es avec la base de code principale aujourd&rsquo;hui pour Linux 6.12 pour <a href=\"https:\/\/www.eenewseurope.com\/en\/real-time-hypervisor-integrated-into-x86-com-boards\/\">x86<\/a>, RISC-V et ARM64. Cela signifie que Linux commencera bient\u00f4t \u00e0 \u00eatre utilis\u00e9 dans davantage d&rsquo;appareils critiques et de mat\u00e9riel industriel.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"dVHe8oT3mW\"><p><a href=\"https:\/\/www.eenewseurope.com\/en\/congatec-teams-up-with-osadl-for-real-time-linux\/\">Congatec teams up with OSADL for real-time Linux<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content lazyload\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Congatec teams up with OSADL for real-time Linux&#8221; &#8212; eeNews Europe\" data-src=\"https:\/\/www.eenewseurope.com\/en\/congatec-teams-up-with-osadl-for-real-time-linux\/embed\/#?secret=I3aBGtCzsz#?secret=dVHe8oT3mW\" data-secret=\"dVHe8oT3mW\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>Le code est en cours de d\u00e9veloppement depuis plus de 20 ans pour fournir des capacit\u00e9s d\u00e9terministes \u00e0 Linux, mais il n\u00e9cessitait des correctifs s\u00e9par\u00e9s plut\u00f4t que d&rsquo;\u00eatre int\u00e9gr\u00e9 \u00e0 la distribution principale. Il a fallu pour cela retravailler la fonction <a href=\"https:\/\/www.kernel.org\/doc\/html\/next\/core-api\/printk-basics.html\">print_k<\/a> du noyau, largement utilis\u00e9e, qui est un outil de d\u00e9bogage essentiel datant de 1991. Cette fonction place un d\u00e9lai dur dans un programme Linux, ce qui ralentit l&rsquo;ex\u00e9cution et la rend non d\u00e9terministe. Bien que cela soit tr\u00e8s utile pour le d\u00e9bogage, c&rsquo;est un probl\u00e8me pour les performances en temps r\u00e9el.<\/p>\n<p>La capacit\u00e9 PREEMPT_RT a \u00e9t\u00e9 incluse dans diverses versions de Linux pour les applications industrielles, notamment Monte Vista, ENEA et Wind River. POSIX, lanc\u00e9 en 1988, d\u00e9finit \u00e9galement des extensions temps r\u00e9el pour les signaux temps r\u00e9el, les politiques d&rsquo;ordonnancement temps r\u00e9el, les m\u00e9canismes de synchronisation des t\u00e2ches, les horloges et les minuteries pour Linux.<\/p>\n<p>Cela a \u00e9galement donn\u00e9 naissance \u00e0 un large \u00e9ventail de syst\u00e8mes d&rsquo;exploitation en temps r\u00e9el de plus petite taille, souvent en Europe, tels que FreeRTOS et SafeRTOS au Royaume-Uni, PikeOS en Allemagne, PX5 aux \u00c9tats-Unis, QNX au Canada et eMCOS au Japon.<\/p>\n<p><a href=\"https:\/\/www.kernel.org\/\">www.kernel.org\/<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux a officiellement adopt\u00e9 des correctifs en temps r\u00e9el dans son syst\u00e8me d&rsquo;exploitation principal afin de fournir des performances en temps r\u00e9el. Les capacit\u00e9s en temps r\u00e9el des correctifs PREEMPT_RT pour le noyau ont \u00e9t\u00e9 officiellement fusionn\u00e9es avec la base de code principale aujourd&rsquo;hui pour Linux 6.12 pour x86, RISC-V et ARM64. Cela signifie que [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":460945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[5397,6858],"domains":[47],"ppma_author":[3640],"class_list":["post-460979","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","tag-linux-fr","tag-temps-reel","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Linux est devenu officiellement un OS temps r\u00e9el ...<\/title>\n<meta name=\"description\" content=\"Linux a officiellement adopt\u00e9 des correctifs dans son OS principal Linux 6.12 afin de fournir des performances en temps r\u00e9el.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/460979\/\" 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