{"id":183404,"date":"2026-09-18T22:54:22","date_gmt":"2026-09-18T20:54:22","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/opublikovana-biblioteka-upravleniya-pamyatyu-jemalloc-5-3"},"modified":"2026-09-18T22:54:25","modified_gmt":"2026-09-18T20:54:25","slug":"jemalloc-5-3-memory-management-library-released","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/jemalloc-5-3-memory-management-library-released","title":{"rendered":"Vy\u0161la kni\u017enica spr\u00e1vy pam\u00e4te jemalloc 5.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Bol zverejnen\u00fd release kni\u017enice na spr\u00e1vu pam\u00e4te jemalloc 5.4.0, ktor\u00e1 pon\u00faka alternat\u00edvnu implement\u00e1ciu funkcionality malloc, optimalizovan\u00fa na zn\u00ed\u017eenie fragment\u00e1cie a fungovanie na viacprocesorov\u00fdch syst\u00e9moch. Na rie\u0161enie probl\u00e9mov s blokovan\u00edm na viacer\u00fdch jadr\u00e1ch pou\u017e\u00edva jemalloc pre ka\u017ed\u00e9 CPU jadro svoju izolovan\u00fa oblas\u0165 alok\u00e1cie pam\u00e4te, \u010do umo\u017e\u0148uje dosiahnu\u0165 line\u00e1rnu \u0161k\u00e1lovate\u013enos\u0165 s rast\u00facim po\u010dtom vl\u00e1kien.     <\/p>\n<p>V j\u00fani 2025 autor projektu prestal projekt podporova\u0165 a prelo\u017eil repozit\u00e1r jemalloc do arch\u00edvneho re\u017eimu, no v marci tohto roka obnovila v\u00fdvoj spolo\u010dnos\u0165 Meta, ktor\u00e1 vyu\u017e\u00edva jemalloc vo svojej infra\u0161trukt\u00fare. Kni\u017enica bola p\u00f4vodne vyvinut\u00e1 pre FreeBSD a od roku 2005 sa v tejto OS pou\u017e\u00edva ako predvolen\u00e1. K\u00f3d kni\u017enice je nap\u00edsan\u00fd v jazyku C a \u0161\u00edri sa pod licenciou BSD.      <\/p>\n<p>Medzi zmenami:  <\/p>\n<ul>\n<li class=\"l\"> Zjednodu\u0161en\u00e1 logika plnenia a vypr\u00e1zd\u0148ovania tcache (Thread Local Cache), ako aj spravovanie alok\u00e1ci\u00ed pam\u00e4te.\n<li class=\"l\"> Zjednoten\u00e9 alok\u00e1tory str\u00e1n pam\u00e4te PAC (Page Allocator Classic) a HPA (Huge Page Allocator). Odstr\u00e1nen\u00fd bol komplikovan\u00fd mechanizmus nepriamych volan\u00ed cez vtable (PAI vtable).\n<li class=\"l\"> Pre zjednodu\u0161enie \u00fadr\u017eby a roz\u0161\u00edrenia platforiem boli v\u0161etky platformovo z\u00e1visl\u00e9 oper\u00e1cie presunut\u00e9 do samostatn\u00fdch hlavi\u010dkov\u00fdch s\u00faborov.\n<li class=\"l\">  Zjednodu\u0161en\u00e1 spr\u00e1va pr\u00edkazov mallctl, ako aj prepracovan\u00e1 infra\u0161trukt\u00fara generovania a v\u00fdstupu \u0161tatist\u00edk.\n<li class=\"l\">  Pridan\u00e1 vlajka EXTENT_ALLOC_FLAG_PINNED, ktor\u00e1 umo\u017e\u0148uje ozna\u010dova\u0165 nevytl\u00e1\u010date\u013en\u00e9 oblasti mapovania pam\u00e4te, ako s\u00fa str\u00e1nky HugeTLB, na ich prioritn\u00e9 op\u00e4tovn\u00e9 vyu\u017eitie. Pre z\u00edskanie \u0161tatist\u00edk o pou\u017e\u00edvan\u00ed pri\u013enutej pam\u00e4te boli pridan\u00e9 nov\u00e9 rozhrania mallctl: stats.pinned, stats.arenas.<i>.pinned, stats.arenas.<i>.extents..npinned, stats.arenas.<i>.extents..pinned_bytes a stats.arenas.<i>.mutexes.extents_pinned.{counter}.\n<li class=\"l\"> Synchronizovan\u00fd obsah \u0161tatist\u00edk malloc vo \u010ditate\u013en\u00fdch a JSON form\u00e1toch.\n<li class=\"l\"> Odstr\u00e1nen\u00e9 zastaran\u00e9 parametre lg_tcache_nslots_mul, tcache_nslots_small_min, tcache_nslots_small_max, tcache_nslots_large, tcache_gc_delay_bytes, lg_tcache_flush_small_div a lg_tcache_flush_large_div.      <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66304\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e jemalloc 5.4.0, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0439 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u0439 malloc, \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0434\u043b\u044f \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438 \u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445. \u0414\u043b\u044f \u0440\u0435\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0430\u043c\u0438 \u043d\u0430 \u043c\u043d\u043e\u0433\u043e\u044f\u0434\u0435\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0432 jemalloc \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u044f\u0434\u0440\u0430 CPU \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0441\u0432\u043e\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043b\u0438\u043d\u0435\u0439\u043d\u043e\u0439 \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u0438 \u0440\u043e\u0441\u0442\u0435 \u0447\u0438\u0441\u043b\u0430 \u043f\u043e\u0442\u043e\u043a\u043e\u0432. \u0412 \u0438\u044e\u043d\u0435 2025 \u0433\u043e\u0434\u0430 \u0430\u0432\u0442\u043e\u0440 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183404","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e jemalloc 5.4.0, 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5.4.0, ktor\u00e1 pon\u00faka alternat\u00edvnu implement\u00e1ciu funkcionality malloc, optimalizovan\u00fa na zn\u00ed\u017eenie fragment\u00e1cie a fungovanie na viacprocesorov\u00fdch syst\u00e9moch.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/jemalloc-5-3-memory-management-library-released","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","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\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 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