{"id":38149,"date":"2019-10-31T22:21:56","date_gmt":"2019-10-31T19:21:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/yadro-linux-5-3-uvidelo-svet\/"},"modified":"2019-10-31T22:21:56","modified_gmt":"2019-10-31T19:21:56","slug":"yadro-linux-5-3-uvidelo-svet","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/yadro-linux-5-3-uvidelo-svet","title":{"rendered":"Linuxi kerneli 5.3 v\u00e4ljaanne on toimunud!","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><b>Peamised uuendused<\/b><br \/>\n<noindex><\/p>\n<ul>\n<li>Pidfd mehhanism, mis v\u00f5imaldab m\u00e4\u00e4rata kindla PID m\u00f5ne protsessiga. Seondumine j\u00e4\u00e4b toimima ka p\u00e4rast protsessi l\u00f5petamist, et PID oleks v\u00f5imalik uuesti m\u00e4\u00e4rata, kui protsess k\u00e4ivitatakse. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/789023\/\">\u00dcksikasjad<\/a>.<\/noindex>\n<\/li>\n<li>Sagedusvahemike piirangud protsessorite planeerijas. N\u00e4iteks saab kriitilisi protsesse k\u00e4ivitada madalaima sageduse piiriga (n\u00e4iteks v\u00e4hemalt 3 GHz), samas kui madalama prioriteediga protsesside puhul on \u00fclemise sageduse piir (n\u00e4iteks mitte \u00fcle 2 GHz). <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/762043\/\">\u00dcksikasjad<\/a>.\n<\/li>\n<li>AMD Navi (RX5700) pere graafikakiipide tugi amdgpu draiveris. K\u00f5ik vajalikud funktsioonid on rakendatud, sealhulgas video kodeerimine\/dekodeerimine ja energiahaldus.\n<\/li>\n<li>T\u00e4ielik t\u00f6\u00f6 x86-\u00fchilduvate Zhaoxin protsessorite peal, mis on loodud VIA ja \u0160anghai valitsuse koost\u00f6\u00f6 tulemusena.\n<\/li>\n<li>Intel Speed Select tehnoloogial p\u00f5hinev toitehalduse alams\u00fcsteem, mis on iseloomulik m\u00f5nede Xeon protsessorite pere protsessoritele. Tehnoloogia on t\u00e4helepanuv\u00e4\u00e4rne iga CPU k\u00f5ige detailsema j\u00f5udluse seadistamise v\u00f5imaluse poolest.\n<\/li>\n<li>Energias\u00e4\u00e4stlik protsesside ooteh\u00e4ire mehhanism kasutajaruumi, mis kasutab Intel Tremonti umwait-k\u00e4ske. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/790920\/\">\u00dcksikasjad<\/a>.\n<\/li>\n<li>Kasutamiseks lubatud vahemik 0.0.0.0\/8, mis annab 16 miljonit uut IPv4-aadressi. <a rel=\"nofollow\" href=\"https:\/\/netdevconf.org\/0x13\/session.html?talk-ipv4-unicast-expansions\">\u00dcksikasjad<\/a>.\n<\/li>\n<li>Paindlik ja kerge ACRN h\u00fcperviisor, mis sobib h\u00e4sti IoT s\u00fcsteemide (asjade internet) haldamiseks. <a rel=\"nofollow\" href=\"https:\/\/projectacrn.org\/\">\u00dcksikasjad<\/a>.\n<\/li>\n<\/ul>\n<p>\nAllpool on loetletud m\u00f5ned muud muudatused.<\/p>\n<p><b>Kerneli peamine osa<\/b>\n<\/p>\n<ul>\n<li>Tugi xz-formaadis utiliitide tihendamiseks, mis v\u00e4hendab katalooge \/lib\/firmware umbes 420 MB-lt 130 MB-le.\n<\/li>\n<li>Uus s\u00fcsteemik\u00f5ne clone(), mille kaudu saab m\u00e4\u00e4rata rohkem lippe. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/792628\/\">\u00dcksikasjad<\/a>.\n<\/li>\n<li>Konsolis valitakse automaatselt suurem font k\u00f5rgete resolutsioonide jaoks.\n<\/li>\n<li>CONFIG_PREEMPT_RT valik, mis t\u00e4histab peatselt RT-patchide kogumi integreerimist kerneli p\u00f5hijoonde.\n<\/li>\n<\/ul>\n<p><b>Failis\u00fcsteem<\/b>\n<\/p>\n<ul>\n<li>BULKSTAT ja INUMBERS s\u00fcsteemik\u00f5ned XFS v5 jaoks, samuti on alustatud t\u00f6\u00f6d inode-de mitme protsessiga l\u00e4bimise realizeerimisel.\n<\/li>\n<li>Btrfs kasutab n\u00fc\u00fcd k\u00f5igil arhitektuuridel kiireid kontrollsummasid (crc32c).\n<\/li>\n<li>Ext4 failidele rakendatakse n\u00fc\u00fcd rangelt mitte-muudatavat lippu (immutability). Tugi t\u00fchikutele (holes) kataloogides on rakendatud.\n<\/li>\n<li>CEPH oskab n\u00fc\u00fcd t\u00f6\u00f6d teha SELinuxiga.\n<\/li>\n<li>CIFS-i smbdirect mehhanism ei ole enam eksperimentaalne. SMB3.1.1 GCM jaoks on lisatud kr\u00fcptoalgoritmid. Failide avamise kiirus on paranenud.\n<\/li>\n<li>F2FS-is saab paigutada vahetusfaile, mis t\u00f6\u00f6tavad otse\u00fchenduse re\u017eiimis. Pr\u00fcgikorjaja saab v\u00e4lja l\u00fclitada, kui checkpoint=disable.\n<\/li>\n<li>NFS-i kliendid saavad serveriga luua mitu TCP-\u00fchendust, kasutades montaa\u017eivalikut nconnect=X.\n<\/li>\n<\/ul>\n<p><b>M\u00e4lu alams\u00fcsteem<\/b>\n<\/p>\n<ul>\n<li>Iga dma-buf saab t\u00e4isfunktsionaalse inode'i. Kataloogidest \/proc\/*\/fd ja \/proc\/*\/map_files saab palju \u00fcksikasjalikke andmeid shmem-i puhvrite kasutamise kohta.\n<\/li>\n<li>Smaps-mehhanism kuvab eraldi teavet anon\u00fc\u00fcmse ja jagatud m\u00e4lu ning failide vahem\u00e4lu kohta, samuti proc-faili smaps_rollup.\n<\/li>\n<li>rbtree kasutamine swap_extent'i puhul on parandanud j\u00f5udlust, kui vahetusfaili kasutavad aktiivselt mitmed protsessid.\n<\/li>\n<li>Proc\/meminfo kuvab vmalloc'i lehtede arvu.\n<\/li>\n<li>Tools\/vm\/slabinfo v\u00f5imalusi on laiendatud, et sorteerida vahem\u00e4lusid fragmentatsiooni m\u00e4\u00e4ra j\u00e4rgi.\n<\/li>\n<\/ul>\n<p><b>Virtualiseerimine ja turvalisus<\/b>\n<\/p>\n<ul>\n<li>Virtio-iommu draiver paravirtualiseeritud seadme jaoks, mis v\u00f5imaldab saata IOMMU p\u00e4ringuid ilma aadressitabelite emuleerimata.\n<\/li>\n<li>Virtio-pmem draiver, mis v\u00f5imaldab juurdep\u00e4\u00e4su salvestusseadmetele f\u00fc\u00fcsilise aadressiruumi kaudu.\n<\/li>\n<li>Metaandmete juurdep\u00e4\u00e4su kiirus vhosti jaoks. TX PPS testid n\u00e4itavad kiiruset\u00f5usu 24%.\n<\/li>\n<li>vhost_net jaoks on zerocopy vaikeaasti keelatud.\n<\/li>\n<li>Kr\u00fcpteerimisv\u00f5tmed saab kinnitada nimespatsioonidele.\n<\/li>\n<li>Toetatakse xxhash'i \u2013 \u00fclimalt kiiret mittekr\u00fcptograafilist hashimisalgoritmi, mille kiirus s\u00f5ltub ainult m\u00e4lu j\u00f5udlusest.\n<\/li>\n<\/ul>\n<p><b>V\u00f5rgu alams\u00fcsteem<\/b>\n<\/p>\n<ul>\n<li>Algne tugi nexthop-objektidele, mis on loodud IPv4 ja IPv6 marsruutide skaleeritavuse parandamiseks.\n<\/li>\n<li>Netfilter on \u00f5ppinud filtreerimise abil koormust riistvaraseadmetele t\u00fchjendama. Lisatud sildadele \u00fchenduste j\u00e4lgimise sisseehitatud tugi.\n<\/li>\n<li>Uus liikluse kontrollimise moodul, mis v\u00f5imaldab MPLS-pakettide pealkirju manipuleerida.\n<\/li>\n<li>isdn4linux alams\u00fcsteem on eemaldatud.\n<\/li>\n<li>Bluetoothi jaoks on saadaval LE-pingid.\n<\/li>\n<\/ul>\n<p><b>Riistvaraarhitektuurid<\/b><\/p>\n<ul>\n<li>Uued ARM-platvormid ja seadmed: Mediatek mt8183, Amlogic G12B, Kontron SMARC SoM, Google Cheza, Purism Librem5 devkit, Qualcomm Dragonboard 845c, Hugsun X99 TV Box jne.\n<\/li>\n<li>x86 jaoks on lisatud mehhanism \/proc\/&lt;pid&gt;\/arch_status, et kuvada arhitektuuriliselt spetsiifilist teavet, n\u00e4iteks viimase AVX512 kasutamise aega.\n<\/li>\n<li>VMX t\u00f6\u00f6d on optimeeritud KVM jaoks, vmexiti kiirus on paranenud 12%.\n<\/li>\n<li>Lisatud ja uuendatud teavet Intel KabyLake, AmberLake, WhiskeyLake ja Ice Lake protsessorite kohta.\n<\/li>\n<li>LZMA ja LZO tihendamine uImage'ile PowerPC-l.\n<\/li>\n<li>Kaitstud virtio-virtualiseerimine S390 jaoks.\n<\/li>\n<li>Suure lehek\u00fclje m\u00e4lu tugi RISCV jaoks.\n<\/li>\n<li>Aja reisimise re\u017eiim User-mode Linuxis (aja aeglustamine ja kiirus).\n<\/li>\n<\/ul>\n<p><b>Seadme draiverid<\/b>\n<\/p>\n<ul>\n<li>HDR metainfotuvastus amdgpu ja i915 draiveritele.\n<\/li>\n<li>Funktsionaalsuse laiendused Vega12 ja Vega20 videokiipidele amdgpu-s.\n<\/li>\n<li>I915 jaoks on v\u00e4lja t\u00f6\u00f6tatud multisegmentne gamma korrektsioon, samuti as\u00fcnkroonne ekraani energiatarbimise v\u00e4ljal\u00fclitus ja rida uusi p\u00fcsivara.\n<\/li>\n<li>Videodriiver Nouveau \u00f5pib \u00e4ra TU116 perekonna kiipe.\n<\/li>\n<li>Uued Bluetooth protokollid MediaTek MT7663U ja MediaTek MT7668U.\n<\/li>\n<li>TLS TX HW laadimine Infiniband'ile, samuti riistvara ja temperatuuri j\u00e4lgimise laiendamine.\n<\/li>\n<li>Elkhart Lake'i tuvastamine HD Audio draiveris.\n<\/li>\n<li>Uued audio seadmed ja koodekid: Conexant CX2072X, Cirrus Logic CS47L35\/85\/90, Cirrus Logic Madera, RT1011\/1308.\n<\/li>\n<li>Apple SPI draiver klaviatuuri ja puuteketta jaoks.\n<\/li>\n<li>Watchdog alams\u00fcsteemis saab seadistada avamise \/dev\/watchdogN jaoks piirajaaja.\n<\/li>\n<li>CPUsageduse juhtimise mehhanism cpufreq sai toetuse imx-cpufreq-dt ja Raspberry Pi jaoks.\n<\/li>\n<\/ul>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/kernel\/15227621\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0413\u043b\u0430\u0432\u043d\u044b\u0435 \u043d\u043e\u0432\u0448\u0435\u0441\u0442\u0432\u0430 \u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c pidfd, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0437\u0430\u043a\u0440\u0435\u043f\u0438\u0442\u044c \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0439 PID \u0437\u0430 \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u043c. \u0417\u0430\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u0438 \u043f\u043e\u0441\u043b\u0435 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430, \u0447\u0442\u043e\u0431\u044b PID \u043c\u043e\u0436\u043d\u043e \u0431\u044b\u043b\u043e \u0432\u044b\u0434\u0430\u0442\u044c \u0435\u043c\u0443 \u043f\u0440\u0438 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u043e\u043c \u0437\u0430\u043f\u0443\u0441\u043a\u0435. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438. \u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u043e\u0432 \u0432 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u044b \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u0441 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u0440\u043e\u0433\u043e\u043c \u0447\u0430\u0441\u0442\u043e\u0442\u044b (\u0441\u043a\u0430\u0436\u0435\u043c, \u043d\u0435 \u043c\u0435\u043d\u0435\u0435 3 \u0413\u0413\u0446), \u0430 \u043d\u0438\u0437\u043a\u0440\u043e\u043f\u0440\u0438\u043e\u0440\u0438\u0442\u0435\u0442\u043d\u044b\u0435 \u2014 \u0441 \u0432\u0435\u0440\u0445\u043d\u0438\u043c \u043f\u043e\u0440\u043e\u0433\u043e\u043c \u0447\u0430\u0441\u0442\u043e\u0442\u044b [&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-38149","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0413\u043b\u0430\u0432\u043d\u044b\u0435 \u043d\u043e\u0432\u0448\u0435\u0441\u0442\u0432\u0430 \u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c pidfd, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u0437\u0430\u043a\u0440\u0435\u043f\u0438\u0442\u044c \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0439 PID \u0437\u0430 \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u043c. 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