{"id":121307,"date":"2025-01-11T09:46:03","date_gmt":"2025-01-11T07:46:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-fedora-42-planiruyut-postavlyat-optimizirovannye-varianty-ispolnyaemyh-fajlov"},"modified":"2025-01-11T09:46:03","modified_gmt":"2025-01-11T07:46:03","slug":"v-fedora-42-planiruyut-postavlyat-optimizirovannye-varianty-ispolnyaemyh-fajlov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/v-fedora-42-planiruyut-postavlyat-optimizirovannye-varianty-ispolnyaemyh-fajlov","title":{"rendered":"I Fedora 42 planeras optimerade versioner av k\u00f6rbara filer att levereras","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I utg\u00e5van av Fedora 42, planerad till slutet av april, f\u00f6resl\u00e5s det att man ska till\u00e5ta utvecklarna att inkludera ytterligare varianter av k\u00f6rbara filer i paketen, sammanst\u00e4llda med optimeringar f\u00f6r mikroarkitekturer x86-64-v2, x86-64-v3 och x86-64-v4. Det p\u00e5pekas att Fedora fortsatt samlar paket f\u00f6r arkitektur x86-64-v1, medan CentOS anv\u00e4nder arkitektur x86-64-v2 f\u00f6r sin sammanst\u00e4llning och RHEL 10 anv\u00e4nder x86-64-v3. I de flesta fall ligger prestandaf\u00f6rb\u00e4ttringen vid sammanst\u00e4llning f\u00f6r liknande arkitekturer under 10%, men i vissa situationer kan det leda till en m\u00e4rkbar prestanda\u00f6kning (upp till 120%). F\u00f6rslaget har \u00e4nnu inte godk\u00e4nts av FESCo (Fedora Engineering Steering Committee), som ansvarar f\u00f6r den tekniska utvecklingen av Fedora-distributionen.    <\/p>\n<p>I Fedora till\u00e5ts redan distribution av extra bibliotek som \u00e4r optimerade f\u00f6r avancerade versioner av x86_64-arkitekturen, och motsvarande m\u00f6jlighet planeras nu \u00e4ven f\u00f6r k\u00f6rbara filer. Laddningen av optimerade implementeringar av biblioteken sker av l\u00e4nkar (dynamic linker), som kontrollerar tillg\u00e5ngen till extra alternativ i underkataloger glibc-hwcaps, som placeras i omr\u00e5den av filsystemet som genoms\u00f6ks vid s\u00f6kning av bibliotek (till exempel \/usr\/lib64\/glibc-hwcaps\/x86-64-v2).    <\/p>\n<p>F\u00f6r k\u00f6rbara filer f\u00f6resl\u00e5s det att anv\u00e4nda en mellanlager, hwcaps-loader, som kommer att v\u00e4lja och k\u00f6ra det k\u00f6rbara alternativet som motsvarar den aktuella systemets kapabiliteter. F\u00f6r paket som levererar flera alternativ av k\u00f6rbara filer f\u00f6resl\u00e5s denna mellanlager att st\u00e4llas in via en symbolisk l\u00e4nk. Beslutet om till\u00e4gg av ytterligare optimerade k\u00f6rbara filer kommer att fattas av utvecklarna, beroende p\u00e5 resultaten av prestandatestningen f\u00f6r specifika paket.    <\/p>\n<p>Versioner av x86-64-v* definierar ett oofficiellt s\u00e4tt att identifiera snitt av mikroarkitekturens tillst\u00e5nd, som omfattar vissa upps\u00e4ttningar av utvidgningar:  <\/p>\n<ul>\n<li class=\"l\"> x86-64-v2 omfattar utvidgningarna SSE3, SSE4_2, SSSE3, POPCNT, LAHF-SAHF och CMPXCHG16B.\n<li class=\"l\"> x86-64-v3 \u2013 AVX, AVX2, BMI2, FMA, LZCNT, MOVBE och SXSAVE.\n<li class=\"l\"> x86-64-v4 \u2013 AVX512F, AVX512BW, AVX512CD, AVX512DQ och AVX512VL.   <\/ul>\n<p>Ytterligare kan man n\u00e4mna f\u00f6rslaget om f\u00f6renkling av uppdateringen av grub- och shim-laddare i atom\u00e4ra och vanliga varianter av Fedora. Ist\u00e4llet f\u00f6r att uppdatera inneh\u00e5llet i katalogerna \/boot och \/boot\/efi genom att anropa ett skript under installationen av rpm-paketet, f\u00f6resl\u00e5s det att anv\u00e4nda bootupd-verktyget f\u00f6r att uppdatera laddaren, vilket redan anv\u00e4nds i atom\u00e4rt uppdaterade varianter av Fedora. Inneh\u00e5llet i rpm-paketen med laddare b\u00f6r installeras inte direkt i katalogerna \/boot och \/boot\/efi, utan i en separat katalog inom partitionen \/usr, och sedan synkronisera inneh\u00e5llet med \/boot och \/boot\/efi. Denna metod ger m\u00f6jlighet att implementera en reservstart som kan anv\u00e4ndas f\u00f6r att \u00e5terg\u00e5 till en \u00e4ldre konfiguration vid problem efter uppdatering av laddaren.<br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62543\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Fedora 42, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u043a\u043e\u043d\u0435\u0446 \u0430\u043f\u0440\u0435\u043b\u044f, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043e \u0440\u0430\u0437\u0440\u0435\u0448\u0438\u0442\u044c \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u043c \u0432\u043a\u043b\u044e\u0447\u0430\u0442\u044c \u0432 \u043f\u0430\u043a\u0435\u0442\u044b \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u0438\u0441\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432, \u0441\u043e\u0431\u0440\u0430\u043d\u043d\u044b\u0435 \u0441 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0430\u0446\u0438\u0439 \u0434\u043b\u044f \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 x86-64-v2, x86-64-v3 \u0438 x86-64-v4. \u041e\u0442\u043c\u0435\u0447\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e Fedora \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0441\u043e\u0431\u0438\u0440\u0430\u0442\u044c \u043f\u0430\u043a\u0435\u0442\u044b \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b x86-64-v1, \u0432 \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043a\u0430\u043a CentOS \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0443 x86-64-v2, \u0430 RHEL 10 &#8212; x86-64-v3. \u0412 \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u0435 \u0441\u043b\u0443\u0447\u0430\u0435\u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121307","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=\"\u0412 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Fedora 42, \u043d\u0430\u043c\u0435\u0447\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 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