{"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\/sk\/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>Po takmer \u0161tyroch rokoch pauzy (pozri &laquo;<a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/forum\/development\/17998612\">jemalloc v\u0161etko<\/a>&raquo;) bol vydan\u00fd 5.3.1 alok\u00e1tor <a rel=\"nofollow\" href=\"https:\/\/jemalloc.net\">jemalloc<\/a> \u2013 implement\u00e1cia malloc(3), ktor\u00e1 sa zameriava na prevenciu fragment\u00e1cie a podporu \u0161k\u00e1lovate\u013enosti paraleln\u00e9ho spracovania.<\/p>\n<p><\/noindex><\/noindex> <\/p>\n<p>Nov\u00e1 verzia obsahuje viac ako 390 commitov s opravami ch\u00fdb, nov\u00fdmi funkciami, optimaliz\u00e1ciou v\u00fdkonu a vylep\u0161enou prenosite\u013enos\u0165ou.<\/p>\n<p>Projekt je nap\u00edsan\u00fd v jazyku C a je distribuovan\u00fd pod licenciou BSD.<\/p>\n<p>Nov\u00e9 mo\u017enosti:<\/p>\n<ul>\n<li>podpora pvalloc(3).<\/li>\n<li>detekcia dvojit\u00e9ho uvo\u013enenia pam\u00e4te v debugovacej zostave;<\/li>\n<li>bola pridan\u00e1 mo\u017enos\u0165 kompil\u00e1cie &#8212;enable-pageid na povolenie anot\u00e1ci\u00ed zobrazenej pam\u00e4te.<\/li>\n<li>pridan\u00fd parameter runtime prof_bt_max na kontrolu maxim\u00e1lnej h\u013abky z\u00e1sobn\u00edka pre profilovanie;<\/li>\n<li>bola pridan\u00e1 mo\u017enos\u0165 kompil\u00e1cie &#8212;enable-force-getenv na pou\u017eitie getenv namiesto secure_getenv;<\/li>\n<li>bola pridan\u00e1 mo\u017enos\u0165 kompil\u00e1cie &#8212;disable-dss na vypnutie pou\u017e\u00edvania sbrk(2);<\/li>\n<li>pridan\u00e1 mo\u017enos\u0165 kompil\u00e1cie tcache_ncached_max na kontrolu po\u010dtu prvkov v cache vl\u00e1kien.<\/li>\n<li>pridan\u00fd parameter runtime calloc_madvise_threshold na ur\u010denie, \u010di sa pou\u017eije kernel alebo memset na nulovanie pridelen\u00fdch blokov pam\u00e4te pri volan\u00ed calloc;<\/li>\n<li>bola pridan\u00e1 mo\u017enos\u0165 kompil\u00e1cie &#8212;disable-user-config na vypnutie \u010d\u00edtania konfigura\u010dn\u00fdch s\u00faborov po\u010das behu z \/etc\/malloc.conf alebo zo premennej prostredia MALLOC_CONF;<\/li>\n<li>pridan\u00fd parameter runtime disable_large_size_classes na zaistenie fungovania nov\u00e9ho algoritmu v\u00fdpo\u010dtu dostupnej ve\u013ekosti, ktor\u00fd minimalizuje re\u017eijn\u00e9 n\u00e1klady na pam\u00e4\u0165 pri alok\u00e1cii ve\u013ek\u00fdch blokov pam\u00e4te, teda s ve\u013ekos\u0165ou &gt;= 4 * PAGE;<\/li>\n<li>bolo zaveden\u00e9 pou\u017e\u00edvanie process_madvise a pridan\u00fd runtime parameter process_madvise_max_batch na riadenie maxim\u00e1lneho po\u010dtu oblast\u00ed pam\u00e4te v ka\u017edej &laquo;\u0161ar\u017ei&raquo; madvise;<\/li>\n<li>pridan\u00e9 rozhrania mallctl:\n<ul>\n<li>opt.prof_bt_max;<\/li>\n<li>arena.&lt;i&gt;.name na zmenu a z\u00edskanie n\u00e1zvov &laquo;ar\u00e9n&raquo;;<\/li>\n<li>thread.tcache.max pre zmenu a z\u00edskanie tcache_max aktu\u00e1lneho vl\u00e1kna;<\/li>\n<li>thread.tcache.ncached_max.write a thread.tcache.ncached_max.read_sizeclass pre zmenu a z\u00edskanie ncached_max aktu\u00e1lneho vl\u00e1kna;<\/li>\n<li>arenas.hugepage na vr\u00e1tenie pou\u017eitej ve\u013ekosti hugepage, tie\u017e exportovanej do \u0161tatistiky malloc;<\/li>\n<li>approximate_stats.active pre z\u00edskanie pribli\u017en\u00e9ho \u00fadaju o aktu\u00e1lnom objeme akt\u00edvnych bajtov, ktor\u00fd by sa nemal porovn\u00e1va\u0165 s in\u00fdmi z\u00edskan\u00fdmi \u0161tatistikami.<\/li>\n<\/ul>\n<\/li>\n<li>tie\u017e opraven\u00e9 mnoh\u00e9 chyby a vylep\u0161en\u00e1 dokument\u00e1cia.<\/li>\n<\/ul>\n<p>Zdroj: <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 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u0447\u0442\u0438 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