{"id":168915,"date":"2026-04-16T11:12:42","date_gmt":"2026-04-16T09:12:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/jemalloc-5-3-1"},"modified":"2026-04-16T11:12:42","modified_gmt":"2026-04-16T09:12:42","slug":"jemalloc-5-3-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/jemalloc-5-3-1","title":{"rendered":"jemalloc 5.3.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <noindex><\/p>\n<p>Apr\u00e8s pr\u00e8s de quatre ans d'interruption (voir &laquo;<a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/forum\/development\/17998612\">jemalloc tout<\/a>&raquo;), la version 5.3.1 de l'allocateur a \u00e9t\u00e9 publi\u00e9e <a rel=\"nofollow\" href=\"https:\/\/jemalloc.net\">jemalloc<\/a> \u2013 une r\u00e9alisation de malloc(3), mettant l'accent sur la pr\u00e9vention de la fragmentation et le soutien \u00e0 la parall\u00e9lisation \u00e9volutive.<\/p>\n<p><\/noindex><\/noindex> <\/p>\n<p>La nouvelle version comprend plus de 390 commits corrigeant des erreurs, ajoutant de nouvelles fonctionnalit\u00e9s, optimisant les performances et am\u00e9liorant la portabilit\u00e9.<\/p>\n<p>Le projet est \u00e9crit en C et distribu\u00e9 sous licence BSD.<\/p>\n<p>Nouvelles fonctionnalit\u00e9s :<\/p>\n<ul>\n<li>prise en charge de pvalloc(3).<\/li>\n<li>d\u00e9tection de double lib\u00e9ration de m\u00e9moire dans la version de d\u00e9bogage ;<\/li>\n<li>une option de compilation a \u00e9t\u00e9 ajout\u00e9e \u2014enable-pageid pour activer l'annotation de la m\u00e9moire affich\u00e9e.<\/li>\n<li>ajout\u00e9 un param\u00e8tre d'ex\u00e9cution prof_bt_max pour contr\u00f4ler la profondeur maximale de la pile pour le profilage ;<\/li>\n<li>une option de compilation a \u00e9t\u00e9 ajout\u00e9e \u2014enable-force-getenv pour utiliser getenv au lieu de secure_getenv ;<\/li>\n<li>une option de compilation a \u00e9t\u00e9 ajout\u00e9e \u2014disable-dss pour d\u00e9sactiver l'utilisation de sbrk(2) ;<\/li>\n<li>ajout\u00e9 l'option de compilation tcache_ncached_max pour contr\u00f4ler le nombre d'\u00e9l\u00e9ments dans le cache des threads.<\/li>\n<li>ajout\u00e9 un param\u00e8tre d'ex\u00e9cution calloc_madvise_threshold pour d\u00e9terminer si le noyau ou memset est utilis\u00e9 pour r\u00e9initialiser les blocs de m\u00e9moire allou\u00e9s lors de l'appel \u00e0 calloc ;<\/li>\n<li>une option de compilation a \u00e9t\u00e9 ajout\u00e9e \u2014disable-user-config pour d\u00e9sactiver la lecture des configurations \u00e0 l'ex\u00e9cution \u00e0 partir du fichier \/etc\/malloc.conf ou de la variable d'environnement MALLOC_CONF ;<\/li>\n<li>ajout\u00e9 un param\u00e8tre d'ex\u00e9cution disable_large_size_classes pour garantir le fonctionnement d'un nouvel algorithme de calcul de taille disponible, minimisant les frais de m\u00e9moire lors de l'allocation de grands blocs de m\u00e9moire, c'est-\u00e0-dire de taille &gt;= 4 * PAGE ;<\/li>\n<li>l'utilisation de process_madvise a \u00e9t\u00e9 activ\u00e9e et un param\u00e8tre runtime process_madvise_max_batch a \u00e9t\u00e9 ajout\u00e9 pour contr\u00f4ler le nombre maximum de r\u00e9gions de m\u00e9moire dans chaque &laquo;lot&raquo; madvise ;<\/li>\n<li>ajout\u00e9 les interfaces mallctl :\n<ul>\n<li>opt.prof_bt_max ;<\/li>\n<li>arena.&lt;i&gt;.name pour modifier et obtenir les noms des &laquo;ar\u00e8nes&raquo;;<\/li>\n<li>thread.tcache.max pour modifier et obtenir tcache_max du thread actuel ;<\/li>\n<li>thread.tcache.ncached_max.write et thread.tcache.ncached_max.read_sizeclass pour modifier et obtenir ncached_max du thread actuel ;<\/li>\n<li>arenas.hugepage pour retourner la taille utilis\u00e9e de hugepage, \u00e9galement export\u00e9e dans les statistiques malloc ;<\/li>\n<li>approximate_stats.active pour obtenir une valeur approximative du volume actuel d'octets actifs, qui ne doit pas \u00eatre compar\u00e9e \u00e0 d'autres donn\u00e9es statistiques obtenues.<\/li>\n<\/ul>\n<\/li>\n<li>de nombreuses erreurs ont \u00e9galement \u00e9t\u00e9 corrig\u00e9es et la documentation am\u00e9lior\u00e9e.<\/li>\n<\/ul>\n<p>Source : <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/development\/18266167\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0447\u0435\u0442\u044b\u0440\u0451\u0445\u043b\u0435\u0442\u043d\u0435\u0439 \u043f\u0430\u0443\u0437\u044b (\u0441\u043c. &laquo;jemalloc \u0432\u0441\u0451&raquo;) \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432\u044b\u043f\u0443\u0441\u043a 5.3.1 \u0430\u043b\u043b\u043e\u043a\u0430\u0442\u043e\u0440\u0430 jemalloc &ndash; \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 malloc(3), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043e\u0441\u043e\u0431\u043e\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u0443\u0434\u0435\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u0434\u043e\u0442\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044e \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438 \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0435 \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438. \u041d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0432 \u0441\u0435\u0431\u044f \u0431\u043e\u043b\u0435\u0435 390 \u043a\u043e\u043c\u043c\u0438\u0442\u043e\u0432 \u0441 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u043e\u0448\u0438\u0431\u043e\u043a, \u043d\u043e\u0432\u044b\u043c\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u043c\u0438, \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u0435\u043c \u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0438\u043c\u043e\u0441\u0442\u0438. \u041f\u0440\u043e\u0435\u043a\u0442 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0438 BSD. \u041d\u043e\u0432\u044b\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-168915","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 \u0447\u0435\u0442\u044b\u0440\u0451\u0445\u043b\u0435\u0442\u043d\u0435\u0439 \u043f\u0430\u0443\u0437\u044b (\u0441\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Erik Peterson\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/fr\/blog\/news\/jemalloc-5-3-1\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2\" \/>\n\t\t<meta 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