{"id":165003,"date":"2026-03-17T17:12:39","date_gmt":"2026-03-17T15:12:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc"},"modified":"2026-03-17T17:12:39","modified_gmt":"2026-03-17T15:12:39","slug":"facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/facebook-vozobnovil-razrabotku-biblioteki-upravleniya-pamyatyu-jemalloc","title":{"rendered":"A Facebook \u00fajb\u00f3l elind\u00edtotta a jemalloc mem\u00f3ria kezel\u0151 k\u00f6nyvt\u00e1r fejleszt\u00e9s\u00e9t","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A Meta* bejelentette a jemalloc mem\u00f3ria kezel\u0151 k\u00f6nyvt\u00e1r fejleszt\u00e9s\u00e9nek folytat\u00e1s\u00e1t, amelynek adatt\u00e1ra tavaly j\u00faniusban archiv\u00e1lt \u00fczemm\u00f3dba ker\u00fclt. A jemalloc k\u00f6nyvt\u00e1r alternat\u00edv implement\u00e1ci\u00f3t k\u00edn\u00e1l a malloc funkci\u00f3khoz, optimaliz\u00e1lva a t\u00f6redezetts\u00e9g cs\u00f6kkent\u00e9s\u00e9re \u00e9s a t\u00f6bbprocesszoros rendszerek teljes\u00edtm\u00e9ny\u00e9re.     <\/p>\n<p>Megjegyzik, hogy a Meta felismerte a jemalloc alkalmaz\u00e1s\u00e1nak el\u0151nyeit az infrastrukt\u00far\u00e1j\u00e1ban, \u00e9s \u00fagy d\u00f6nt\u00f6tt, hogy folytatja a k\u00f6nyvt\u00e1r k\u00f3dj\u00e1nak fejleszt\u00e9s\u00e9t a karbantart\u00e1si k\u00f6lts\u00e9gek cs\u00f6kkent\u00e9se, a k\u00f3d b\u00e1zis\u00e1nak moderniz\u00e1l\u00e1sa, a technikai ad\u00f3ss\u00e1g megsz\u00fcntet\u00e9se \u00e9s az \u00faj terhel\u00e9sekhez, valamint a kor\u00e1bbi hardverekhez val\u00f3 alkalmazkod\u00e1s \u00e9rdek\u00e9ben. A fejleszt\u00e9s ny\u00edlt projekt form\u00e1j\u00e1ban folytat\u00f3dik, amelyet k\u00f6z\u00f6ss\u00e9gi egy\u00fcttm\u0171k\u00f6d\u00e9s keretein bel\u00fcl val\u00f3s\u00edtanak meg, \u00e9s \u00fcdv\u00f6zlik a k\u00fcls\u0151 r\u00e9sztvev\u0151k bevon\u00e1s\u00e1t.    <\/p>\n<p>A jemalloc k\u00f6nyvt\u00e1rat Jason Evans fejlesztette 2005-ben a FreeBSD 7.0 sz\u00e1m\u00e1ra, majd portolt\u00e1k a NetBSD-be \u00e9s integr\u00e1lt\u00e1k a Firefoxba. 2009-ben a jemalloc szerz\u0151je a Facebookhoz csatlakozott, ahol ezt a k\u00f6nyvt\u00e1rat bels\u0151 projektekn\u00e9l haszn\u00e1lt\u00e1k. 2017-ben Jason elhagyta a Facebookot, a fejleszt\u00e9st pedig a Facebook fennmarad\u00f3 csapata folytatta. A Meta n\u00e9ven val\u00f3 \u00e1tnevez\u00e9s ut\u00e1n a v\u00e1llalat priorit\u00e1sai megv\u00e1ltoztak, a k\u00f6nyvt\u00e1r fejleszt\u00e9se le\u00e1llt, a munka kiz\u00e1r\u00f3lag bels\u0151 ig\u00e9nyekre \u00f6sszpontosult, a ny\u00edlt forr\u00e1sk\u00f3d\u00fa b\u00e1zis pedig az id\u0151 m\u00fal\u00e1s\u00e1val leromlott. A nyilv\u00e1nos k\u00f6nyvt\u00e1r m\u0171k\u00f6d\u00e9s\u00e9nek fenntart\u00e1s\u00e1hoz jelent\u0151s refaktor\u00e1l\u00e1sra volt sz\u00fcks\u00e9g, de Jason nem akarta az idej\u00e9t erre a munk\u00e1ra pazarolni, ez\u00e9rt 10 h\u00f3nappal ezel\u0151tt archiv\u00e1lt \u00fczemm\u00f3dba helyezte az adatt\u00e1rat.      <\/p>\n<p>A Facebook \u00e1ltal a projekt \u00fajj\u00e1\u00e9led\u00e9s\u00e9t k\u00f6vet\u0151en tervezett c\u00e9lok k\u00f6z\u00f6tt szerepel:  <\/p>\n<ul>\n<li class=\"l\"> A felhalmozott technikai ad\u00f3ss\u00e1g cs\u00f6kkent\u00e9se, a k\u00f3d b\u00e1zis\u00e1nak refaktor\u00e1l\u00e1sa \u00e9s tiszt\u00edt\u00e1sa, a k\u00f6nyvt\u00e1r t\u00f6retlen hat\u00e9konys\u00e1g\u00e1nak, megb\u00edzhat\u00f3s\u00e1g\u00e1nak \u00e9s haszn\u00e1lhat\u00f3s\u00e1g\u00e1nak meg\u0151rz\u00e9se \u00e9rdek\u00e9ben.\n<li class=\"l\"> A HPA (Huge-Page Allocator) allok\u00e1tor fejleszt\u00e9s\u00e9nek folytat\u00e1sa a CPU er\u0151forr\u00e1s-felhaszn\u00e1l\u00e1s optimaliz\u00e1l\u00e1sa \u00e9rdek\u00e9ben a nagy mem\u00f3riablokkok (transparent hugepage) hat\u00e9konyabb kihaszn\u00e1l\u00e1s\u00e1val.\n<li class=\"l\"> A mem\u00f3ria hat\u00e9konys\u00e1g\u00e1nak n\u00f6vel\u00e9s\u00e9re vonatkoz\u00f3 m\u00f3dos\u00edt\u00e1sok, amelyek a strukt\u00far\u00e1k csomagol\u00e1s\u00e1nak, gyors\u00edt\u00f3t\u00e1raz\u00e1s\u00e1nak \u00e9s az felszabad\u00edtott mem\u00f3ria blokkok tiszt\u00edt\u00e1s\u00e1nak jav\u00edt\u00e1s\u00e1hoz kapcsol\u00f3dnak.\n<li class=\"l\"> Optimaliz\u00e1l\u00e1sok hozz\u00e1ad\u00e1sa az AArch64 (ARM64) architekt\u00far\u00e1hoz.    <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65006\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta* \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \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, \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432 \u0438\u044e\u043d\u0435 \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0433\u043e\u0434\u0430 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0451\u043d \u0432 \u0430\u0440\u0445\u0438\u0432\u043d\u044b\u0439 \u0440\u0435\u0436\u0438\u043c. \u0411\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 jemalloc \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442 \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. \u041e\u0442\u043c\u0435\u0447\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta \u043e\u0441\u043e\u0437\u043d\u0430\u043b\u0430 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430 \u043e\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f jemalloc \u0432 \u0441\u0432\u043e\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u0438 \u0440\u0435\u0448\u0438\u043b\u0430 \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u043d\u0430\u0434 \u043a\u043e\u0434\u043e\u043c [&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-165003","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=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Meta* \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0438 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