{"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\/sv\/blog\/news\/jemalloc-5-3-memory-management-library-released","title":{"rendered":"Det har publicerats ett minneshanteringsbibliotek jemalloc 5.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>En ny version av minneshanteringsbiblioteket jemalloc 5.4.0 har presenterats, som erbjuder en alternativ implementation av malloc-funktionerna, optimerad f\u00f6r att minska fragmentering och fungera p\u00e5 flerprocessor-system. F\u00f6r att l\u00f6sa problem med l\u00e5sning p\u00e5 flerk\u00e4rniga system anv\u00e4nder jemalloc ett isolerat minnesallokeringsomr\u00e5de f\u00f6r varje CPU-k\u00e4rna, vilket m\u00f6jligg\u00f6r linj\u00e4r skalbarhet n\u00e4r antalet tr\u00e5dar \u00f6kar.     <\/p>\n<p>I juni 2025 avslutade projektets skapare st\u00f6det och arkiverade jemalloc-repositoriet, men i mars i \u00e5r \u00e5terupptog f\u00f6retaget Meta, som anv\u00e4nder jemalloc i sin infrastruktur, utvecklingen. Biblioteket utvecklades ursprungligen f\u00f6r FreeBSD och anv\u00e4nds som standard i detta operativsystem sedan 2005. Koden i biblioteket \u00e4r skriven i C och distribueras under BSD-licensen.      <\/p>\n<p>Bland \u00e4ndringarna:  <\/p>\n<ul>\n<li class=\"l\"> Logiken f\u00f6r att fylla och \u00e5terst\u00e4lla tcache (Thread Local Cache) samt hanteringen av minnesallokering har f\u00f6renklats.\n<li class=\"l\"> Minnesallokerarna PAC (Page Allocator Classic) och HPA (Huge Page Allocator) har f\u00f6renats. Den komplicerade mekanismen f\u00f6r indirekta anrop via vtable (PAI vtable) har tagits bort.\n<li class=\"l\"> F\u00f6r att f\u00f6renkla underh\u00e5ll och expansion av plattformen har alla plattformsberoende operationer flyttats till separata header-filer.\n<li class=\"l\">  Hanteringen av mallctl-kommandon har f\u00f6renklats, och infrastrukturen f\u00f6r generering och utdata av statistik har omarbetats.\n<li class=\"l\">  Flaggan EXTENT_ALLOC_FLAG_PINNED har lagts till, vilket g\u00f6r det m\u00f6jligt att m\u00e4rka oflyttbara minnesomr\u00e5den, s\u00e5som HugeTLB-sidor, f\u00f6r prioriterad \u00e5teranv\u00e4ndning. F\u00f6r att f\u00e5 statistik \u00f6ver anv\u00e4ndningen av fast minne har nya mallctl-gr\u00e4nssnitt lagts till: 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 och stats.arenas.&lt;i&gt;.mutexes.extents_pinned.{counter}.\n<li class=\"l\"> Inneh\u00e5llet i malloc-statistik har synkroniserats i l\u00e4sbar och JSON-format.\n<li class=\"l\"> F\u00f6r\u00e5ldrade parametrar lg_tcache_nslots_mul, tcache_nslots_small_min, tcache_nslots_small_max, tcache_nslots_large, tcache_gc_delay_bytes, lg_tcache_flush_small_div och lg_tcache_flush_large_div har tagits bort.      <\/ul>\n<p>K\u00e4lla: <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 5.0.5 - 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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