{"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\/hu\/blog\/news\/jemalloc-5-3-memory-management-library-released","title":{"rendered":"Megjelent a jemalloc 5.3 mem\u00f3ria-kezeli k\u00f6nyvt\u00e1r","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelent a jemalloc 5.4.0 mem\u00f3ria kezel\u0151 k\u00f6nyvt\u00e1r \u00faj verzi\u00f3ja, amely alternat\u00edv megval\u00f3s\u00edt\u00e1st k\u00edn\u00e1l a malloc funkci\u00f3khoz, optimaliz\u00e1lva a fragment\u00e1ci\u00f3 cs\u00f6kkent\u00e9s\u00e9re \u00e9s a multiprocesszoros rendszerek m\u0171k\u00f6d\u00e9s\u00e9re. A t\u00f6bbmagos rendszerek z\u00e1rol\u00e1si probl\u00e9m\u00e1inak megold\u00e1s\u00e1ra a jemalloc minden CPU maghoz saj\u00e1t, izol\u00e1lt mem\u00f3riamegoszt\u00e1si ter\u00fcletet haszn\u00e1l, ami line\u00e1ris sk\u00e1l\u00e1zhat\u00f3s\u00e1got tesz lehet\u0151v\u00e9 a sz\u00e1lak sz\u00e1m\u00e1nak n\u00f6veked\u00e9s\u00e9vel.     <\/p>\n<p>2025 j\u00fanius\u00e1ban a projekt szerz\u0151je le\u00e1ll\u00edtotta a karbantart\u00e1s\u00e1t, \u00e9s archiv\u00e1lta a jemalloc t\u00e1rol\u00f3t, de az id\u00e9n m\u00e1rciusban a Meta v\u00e1llalat \u00fajraind\u00edtotta a fejleszt\u00e9st, amely a jemalloc-ot az infrastrukt\u00far\u00e1j\u00e1ban alkalmazza. A k\u00f6nyvt\u00e1r eredetileg a FreeBSD sz\u00e1m\u00e1ra k\u00e9sz\u00fclt, \u00e9s az\u00f3ta alap\u00e9rtelmezettk\u00e9nt haszn\u00e1lj\u00e1k ezen oper\u00e1ci\u00f3s rendszeren 2005 \u00f3ta. A k\u00f6nyvt\u00e1r k\u00f3dja C nyelven \u00edr\u00f3dott, \u00e9s BSD licenc alatt terjesztik.      <\/p>\n<p>A v\u00e1ltoztat\u00e1sok k\u00f6z\u00fcl:  <\/p>\n<ul>\n<li class=\"l\"> Egyszer\u0171s\u00edtett\u00e9k a tcache (Sz\u00e1l Helyi Cache) kit\u00f6lt\u00e9s\u00e9nek \u00e9s vissza\u00e1ll\u00edt\u00e1s\u00e1nak logik\u00e1j\u00e1t, valamint a mem\u00f3riaallok\u00e1l\u00e1s \u00fctemez\u00e9s\u00e9t.\n<li class=\"l\"> Egys\u00e9ges\u00edtett\u00e9k a PAC (Hagyom\u00e1nyos Oldal Allok\u00e1tor) \u00e9s HPA (Nagy Oldal Allok\u00e1tor) mem\u00f3riaallok\u00e1torokat. Elt\u00e1vol\u00edtott\u00e1k a vtable (PAI vtable) k\u00f6zvetett h\u00edv\u00e1sok bonyolult mechanizmus\u00e1t.\n<li class=\"l\"> A platformokra jellemz\u0151 \u00f6sszes m\u0171veletet k\u00fcl\u00f6n fejl\u00e9cre helyezt\u00e9k a karbantart\u00e1s \u00e9s b\u0151v\u00edt\u00e9s egyszer\u0171s\u00edt\u00e9se \u00e9rdek\u00e9ben.\n<li class=\"l\">  Egyszer\u0171s\u00edtett\u00e9k a mallctl parancsok \u00fctemez\u00e9s\u00e9t, valamint \u00e1tdolgozt\u00e1k a statisztika gener\u00e1l\u00e1s\u00e1nak \u00e9s ki\u00edr\u00e1s\u00e1nak infrastrukt\u00far\u00e1j\u00e1t.\n<li class=\"l\">  Hozz\u00e1ad\u00f3dott az EXTENT_ALLOC_FLAG_PINNED z\u00e1szl\u00f3, amely lehet\u0151v\u00e9 teszi a mem\u00f3riat\u00e9rk\u00e9p nem kiszor\u00edthat\u00f3 r\u00e9szeinek, p\u00e9ld\u00e1ul HugeTLB oldalak megjel\u00f6l\u00e9s\u00e9t, priorit\u00e1suk \u00fajrahaszn\u00e1l\u00e1s\u00e1ra. A r\u00f6gz\u00edtett mem\u00f3ria haszn\u00e1lat\u00e1r\u00f3l sz\u00f3l\u00f3 statisztik\u00e1khoz \u00faj mallctl interf\u00e9szek ker\u00fcltek: stats.pinned, stats.arenas.&lt;i&gt;.pinned, stats.arenas.&lt;i&gt;.extents.&lt;j&gt;.npinned, stats.arenas.&lt;i&gt;.extents..pinned_bytes \u00e9s stats.arenas.&lt;i&gt;.mutexes.extents_pinned.{counter}.\n<li class=\"l\"> A malloc statisztikai tartalma szinkroniz\u00e1lva lett olvashat\u00f3 \u00e9s JSON form\u00e1tumban.\n<li class=\"l\"> Elt\u00e1vol\u00edtott\u00e1k az elavult param\u00e9tereket lg_tcache_nslots_mul, tcache_nslots_small_min, tcache_nslots_small_max, tcache_nslots_large, tcache_gc_delay_bytes, lg_tcache_flush_small_div, \u00e9s lg_tcache_flush_large_div.      <\/ul>\n<p>Forr\u00e1s: <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 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d 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