{"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\/ro\/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>Dup\u0103 aproape patru ani de pauz\u0103 (vezi &laquo;<a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/forum\/development\/17998612\">jemalloc a lansat<\/a>&raquo;) a avut loc lansarea versiunii 5.3.1 a alocatorului <a rel=\"nofollow\" href=\"https:\/\/jemalloc.net\">jemalloc<\/a> \u2013 implementarea malloc(3), \u00een care se pune un accent deosebit pe prevenirea fragment\u0103rii \u0219i suportul pentru concuren\u021ba scalabil\u0103.<\/p>\n<p><\/noindex><\/noindex> <\/p>\n<p>Noua versiune include peste 390 de commituri cu corec\u021bii de erori, func\u021bii noi, optimiz\u0103ri de performan\u021b\u0103 \u0219i \u00eembun\u0103t\u0103\u021biri ale portabilit\u0103\u021bii.<\/p>\n<p>Proiectul este scris \u00een limbajul C \u0219i este distribuit sub licen\u021ba BSD.<\/p>\n<p>Func\u021bionalit\u0103\u021bi noi:<\/p>\n<ul>\n<li>suport pentru pvalloc(3).<\/li>\n<li>detectarea eliber\u0103rii duble a memoriei \u00een versiunea de debug;<\/li>\n<li>a fost ad\u0103ugat\u0103 op\u021biunea de compilare &#8212;enable-pageid pentru activarea anot\u0103rii memoriei afi\u0219ate.<\/li>\n<li>a fost ad\u0103ugat parametru de runtime prof_bt_max pentru a controla ad\u00e2ncimea maxim\u0103 a stivei pentru profilare;<\/li>\n<li>a fost ad\u0103ugat\u0103 op\u021biunea de compilare &#8212;enable-force-getenv pentru utilizarea getenv \u00een loc de secure_getenv;<\/li>\n<li>a fost ad\u0103ugat\u0103 op\u021biunea de compilare &#8212;disable-dss pentru dezactivarea utiliz\u0103rii sbrk(2);<\/li>\n<li>a fost ad\u0103ugat\u0103 op\u021biunea de compilare tcache_ncached_max pentru a controla num\u0103rul de elemente din cache-ul firului.<\/li>\n<li>a fost ad\u0103ugat parametru de runtime calloc_madvise_threshold pentru a determina dac\u0103 se folose\u0219te kernel sau memset pentru a reseta blocurile de memorie alocate la apelul calloc;<\/li>\n<li>a fost ad\u0103ugat\u0103 op\u021biunea de compilare &#8212;disable-user-config pentru a dezactiva citirea \u00een timpul execu\u021biei a configura\u021biilor din fi\u0219ierul \\\/etc\\\/malloc.conf sau din variabila de mediu MALLOC_CONF;<\/li>\n<li>a fost ad\u0103ugat parametru de runtime disable_large_size_classes pentru a asigura func\u021bionarea noului algoritm de calculare a dimensiunii disponibile, care minimizeaz\u0103 cheltuielile de memorie la alocarea blocurilor mari de memorie, adic\u0103 cu dimensiunea &gt;= 4 * PAGE;<\/li>\n<li>a fost activat\u0103 utilizarea process_madvise \u0219i ad\u0103ugat\u0103 parametrul runtime process_madvise_max_batch pentru gestionarea num\u0103rului maxim de regiuni de memorie \u00een fiecare &laquo;batch&raquo; madvise;<\/li>\n<li>au fost ad\u0103ugate interfe\u021bele mallctl:\n<ul>\n<li>opt.prof_bt_max;<\/li>\n<li>arena.&lt;i&gt;.name pentru a modifica \u0219i ob\u021bine numele &laquo;arenei&raquo;;<\/li>\n<li>thread.tcache.max pentru a modifica \u0219i ob\u021bine tcache_max al firului curent;<\/li>\n<li>thread.tcache.ncached_max.write \u0219i thread.tcache.ncached_max.read_sizeclass pentru a modifica \u0219i ob\u021bine ncached_max al firului curent;<\/li>\n<li>arenas.hugepage pentru a returna dimensiunea folosit\u0103 de hugepage, de asemenea exportat\u0103 \u00een statisticile malloc;<\/li>\n<li>approximate_stats.active pentru a ob\u021bine o valoare aproximativ\u0103 a volumului activ curent de bytes, care nu trebuie comparat\u0103 cu alte date statistice ob\u021binute.<\/li>\n<\/ul>\n<\/li>\n<li>de asemenea, au fost corectate multe erori \u0219i a fost \u00eembun\u0103t\u0103\u021bit\u0103 documenta\u021bia.<\/li>\n<\/ul>\n<p>Sursa: <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 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\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 5.0.2.1 - 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\/ro\/blog\/news\/jemalloc-5-3-1\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" 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