{"id":53753,"date":"2019-12-09T00:00:00","date_gmt":"2019-12-08T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/nastupaet-epoha-arm-serverov"},"modified":"2020-02-18T14:01:41","modified_gmt":"2020-02-18T11:01:41","slug":"nastupaet-epoha-arm-serverov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/no\/blog\/administrirovanie\/nastupaet-epoha-arm-serverov","title":{"rendered":"Er tiden for ARM-servere kommet?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/6_\/bo\/eg\/6_boegx2b5z1nkjoxnelf3ovvyo.jpeg\"><img decoding=\"async\" alt=\"Er tiden for ARM-servere kommet?\" src=\"\/wp-content\/uploads\/2019\/12\/7d2b5ede1b72f5c16dc18e280caff6ce.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<i>SynQuacer E-Series hovedkort for en 24-kjerners ARM-server med ARM Cortex A53-prosessor og 32 GB RAM, <noindex><a rel=\"nofollow\" href=\"http:\/\/forum.banana-pi.org\/t\/check-it-out-banana-pi-24-core-arm-server\/7530\">desember 2018<\/a><\/noindex><\/i> <\/p>\n<p>I mange \u00e5r har ARM-prosessorer med reduserte instruksjonssett (RISC) dominert mobilmarkedet. Men de har til n\u00e5 ikke klart \u00e5 ta seg inn i datasentrene, hvor Intel og AMD fortsatt regjerer med x86-arkitektur. Det har av og til dukket opp eksotiske l\u00f8sninger, som <noindex><a rel=\"nofollow\" href=\"http:\/\/forum.banana-pi.org\/t\/check-it-out-banana-pi-24-core-arm-server\/7530\">en 24-kjerners ARM-server p\u00e5 Banana Pi-plattformen<\/a><\/noindex>, men det har enn\u00e5 ikke v\u00e6rt noen betydelige tilbud. I det minste ikke f\u00f8r denne uken.<\/p>\n<p>Den uken lanserte AWS sine egne 64-kjerners ARM-prosessorer i skyen, <noindex><a rel=\"nofollow\" href=\"https:\/\/aws.amazon.com\/blogs\/aws\/coming-soon-graviton2-powered-general-purpose-compute-optimized-memory-optimized-ec2-instances\/\">Graviton2,<\/a><\/noindex>\u00a0som er et system-p\u00e5-brikke med ARM Neoverse N1-kjerne. Selskapet p\u00e5st\u00e5r at Graviton2 er betydelig raskere enn forrige generasjon ARM-prosessorer i EC2 A1-instansene, og her er <noindex><a rel=\"nofollow\" href=\"https:\/\/www.scylladb.com\/2019\/12\/05\/is-arm-ready-for-server-dominance\/\">de f\u00f8rste uavhengige testene.<\/a><\/noindex>.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nInfrastrukturvirksomhet er en sammenligning av tall. I bunn og grunn er det ikke viktig for kundene i et datasenter eller en skytjeneste hvilken arkitektur prosessorene har. Det som betyr noe er pris-prestasjon-forholdet. Hvis det er billigere \u00e5 bruke ARM enn x86, vil de velge det. <\/p>\n<p>Inntil nylig var det vanskelig \u00e5 si entydig at beregninger p\u00e5 ARM ville v\u00e6re mer l\u00f8nnsomme enn p\u00e5 x86. For eksempel er en server med 24-kjerners ARM Cortex A53-modell, <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikichip.org\/wiki\/socionext\/sc2a11\">SocioNext SC2A11,<\/a><\/noindex> som koster rundt $1000, i stand til \u00e5 kj\u00f8re en webserver p\u00e5 Ubuntu, men den er betydelig svakere enn x86-prosessorer.<\/p>\n<p>Men den fantastiske energieffektiviteten til ARM-prosessorene gir oss grunn til \u00e5 se n\u00e6rmere p\u00e5 dem igjen og igjen. For eksempel bruker SocioNext SC2A11 bare 5 W. Str\u00f8mregningen utgj\u00f8r omtrent 20 % av kostnadene til et datasenter. Hvis disse brikkene viser anstendig ytelse, har ikke x86 sjans.<\/p>\n<h2>F\u00f8rste ankomst av ARM: EC2 A1-instansene<\/h2>\n<p>\nI slutten av 2018 presenterte AWS <noindex><a rel=\"nofollow\" href=\"https:\/\/aws.amazon.com\/ec2\/instance-types\/a1\/\">EC2 A1-instansene<\/a><\/noindex> med sine egne ARM-prosessorer. Dette var definitivt et signal til industrien om potensielle endringer i markedet, men benchmarkresultatene var skuffende.<\/p>\n<p>I tabellen nedenfor vises <noindex><a rel=\"nofollow\" href=\"https:\/\/www.scylladb.com\/2019\/12\/05\/is-arm-ready-for-server-dominance\/\">resultatene fra stresstesting<\/a><\/noindex> av EC2 A1 (ARM) og EC2 M5d.metal (x86) instanser. Stress-testingverkt\u00f8yet <code>stress-ng,<\/code>:<\/p>\n<p><code>stress-ng --metrics-brief --cache 16 --icache 16 --matrix 16 --cpu 16 --memcpy 16 --qsort 16 --dentry 16 --timer 16 -t 1m<\/code><\/p>\n<p>Som vi ser, har A1 prestert d\u00e5rligere i alle tester bortsett fra cache. N\u00e5r det gjelder de fleste andre indikatorer, er ARM betydelig svakere. Denne forskjellen i ytelse er st\u00f8rre enn prisforskjellen p\u00e5 46% mellom A1 og M5. Med andre ord, instanser med x86-prosessorer har fremdeles en bedre kostnad\/ytelse.<\/p>\n<p>Test<br \/>\nEC2 A1<br \/>\nEC2 M5d.metal<br \/>\nForskjellen<\/p>\n<p>cache<br \/>\n1280<br \/>\n311<br \/>\n<strong>311,58%<\/strong><\/p>\n<p>icache<br \/>\n18209<br \/>\n34368<br \/>\n<strong>-47,02%<\/strong><\/p>\n<p>matrix<br \/>\n77932<br \/>\n252190<br \/>\n<strong>-69,10%<\/strong><\/p>\n<p>cpu<br \/>\n9336<br \/>\n24077<br \/>\n<strong>-61,22%<\/strong><\/p>\n<p>memcpy<br \/>\n21085<br \/>\n111877<br \/>\n<strong>-81,15%<\/strong><\/p>\n<p>qsort<br \/>\n522<br \/>\n728<br \/>\n<strong>-28,30%<\/strong><\/p>\n<p>dentry<br \/>\n1389634<br \/>\n2770985<br \/>\n<strong>-49.85%<\/strong><\/p>\n<p>timer<br \/>\n4970125<br \/>\n15367075<br \/>\n<strong>-67,66%<\/strong><\/p>\n<p>\nSelvf\u00f8lgelig viser mikrobenchmarks ikke alltid et objektivt bilde. Forskjellen i reell applikasjonsytelse er viktig. Men her var bildet ikke bedre. Kollegaene fra Scylla sammenlignet instansene a1.metal og m5.4xlarge med samme antall prosessorer. I den standard NoSQL-databasen testen med \u00e9n node viste den f\u00f8rste 102 000 leseoperasjoner per sekund, mens den andre viste 610 000. I begge tilfeller ble alle tilgjengelige prosessorer brukt til 100%. Dette tilsvarer et ytelsestap p\u00e5 omtrent seks ganger, noe som ikke kompenseres av den lavere prisen.<\/p>\n<p>I tillegg kj\u00f8rer A1-instanser kun p\u00e5 EBS uten st\u00f8tte for hurtige NVMe-enheter, slik som i de andre instansene.<\/p>\n<p>Generelt sett er A1 et skritt i en ny retning, men det innfridde ikke forventningene til ARM.<\/p>\n<h2>Den andre ankomsten av ARM: EC2 M6-instanser<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Er tiden for ARM-servere kommet?\" src=\"\/wp-content\/uploads\/2019\/12\/0490b1e3648d30d9794be72d464d628d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Alt endret seg denne uken da AWS presenterte en ny klasse ARM-servere samt en rekke instanser p\u00e5 de nye prosessorene <noindex><a rel=\"nofollow\" href=\"https:\/\/aws.amazon.com\/blogs\/aws\/coming-soon-graviton2-powered-general-purpose-compute-optimized-memory-optimized-ec2-instances\/\">Graviton2,<\/a><\/noindex>, inkludert <noindex><a rel=\"nofollow\" href=\"https:\/\/aws.amazon.com\/about-aws\/whats-new\/2019\/12\/announcing-new-amazon-ec2-m6g-c6g-and-r6g-instances-powered-by-next-generation-arm-based-aws-graviton2-processors\/\">M6g og M6gd<\/a><\/noindex>.<\/p>\n<p>Sammenligningen av disse instansene viser et helt annet bilde. I noen tester presterer ARM bedre, og noen ganger mye bedre enn x86.<\/p>\n<p>Her er resultatene fra den samme stressoverv\u00e5kingskommandoen:<\/p>\n<p><strong>Test<\/strong><br \/>\n<strong>EC2 M6g<\/strong><br \/>\n<strong>EC2 M5d.metal<\/strong><br \/>\n<strong>Forskjellen<\/strong><\/p>\n<p>cache<br \/>\n218<br \/>\n311<br \/>\n<strong>-29,90%<\/strong><\/p>\n<p>icache<br \/>\n45887<br \/>\n34368<br \/>\n<strong>33,52%<\/strong><\/p>\n<p>matrix<br \/>\n453982<br \/>\n252190<br \/>\n<strong>80,02%<\/strong><\/p>\n<p>cpu<br \/>\n14694<br \/>\n24077<br \/>\n<strong>-38,97%<\/strong><\/p>\n<p>memcpy<br \/>\n134711<br \/>\n111877<br \/>\n<strong>20,53%<\/strong><\/p>\n<p>qsort<br \/>\n943<br \/>\n728<br \/>\n<strong>29,53%<\/strong><\/p>\n<p>dentry<br \/>\n3088242<br \/>\n2770985<br \/>\n<strong>11,45%<\/strong><\/p>\n<p>timer<br \/>\n55515663<br \/>\n15367075<br \/>\n<strong>261,26%<\/strong><\/p>\n<p>\nDette er et helt annet niv\u00e5: M6g er fem ganger raskere enn A1 n\u00e5r det gjelder leseoperasjoner fra Scylla NoSQL-databasen, og i de nye M6gd-instansene er det raske NVMe-lagringsenheter.<\/p>\n<h2>ARM-suksess p\u00e5 alle fronter<\/h2>\n<p>\nAWS Graviton2-prosessoren er bare ett eksempel p\u00e5 bruken av ARM i datasentre. Men signaler kommer fra flere kanter. For eksempel, 15. november 2019 samlet den amerikanske oppstartsbedriften Nuvia <noindex><a rel=\"nofollow\" href=\"https:\/\/nuviainc.com\/news\/nuvia-raises-53-million-to-reimagine-silicon-design\">53 millioner dollar i venturekapital<\/a><\/noindex>. <\/p>\n<p>Oppstarten ble grunnlagt av tre ledende ingeni\u00f8rer som har jobbet med prosessorutvikling i Apple og Google. De lover \u00e5 utvikle prosessorer for datasentre som skal kunne konkurrere med Intel og AMD.<\/p>\n<p>If\u00f8lge <noindex><a rel=\"nofollow\" href=\"https:\/\/techcrunch.com\/2019\/11\/15\/three-of-apple-and-googles-former-star-chip-designers-launch-nuvia-with-53m-in-series-a-funding\/\">if\u00f8lge tilgjengelig informasjon<\/a><\/noindex>, har Nuvia designet en prosessorkjerne fra bunnen av som kan bygges \"over\" ARM-arkitekturen, men uten \u00e5 m\u00e5tte lisensiere ARM.<\/p>\n<p>Alt dette tyder p\u00e5 at ARM-prosessorer er klare til \u00e5 erobre servermarkedet. Tross alt lever vi i en post-PC-epoke. \u00c5rlige leveranser av x86 har falt med nesten 10 % siden topp\u00e5ret 2011, mens RISC-brikker har steget til 20 milliarder. I dag er 99 % av 32- og 64-bits prosessorer i verden RISC.<\/p>\n<p>Turing-prisvinnerne John Hennessy og David Patterson publiserte en artikkel i februar 2019 <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/440760\/\">\u00abEn ny gullalder for datamaskinarkitektur\u00bb<\/a><\/noindex>. Slik skriver de: <\/p>\n<blockquote><p>Markedet har avgjort konflikten mellom RISC og CISC. Selv om CISC vant de senere stadiene av PC-epoken, vinner RISC n\u00e5 som vi har g\u00e5tt inn i post-PC-epoken. Det har ikke blitt utviklet nye ISA-er for CISC p\u00e5 flere ti\u00e5r. Til v\u00e5r overraskelse er den generelle oppfatningen av de beste prinsippene for ISA for generelle prosessorer i dag fortsatt til fordel for RISC, 35 \u00e5r etter oppfinnelsen\u2026 I \u00f8kosystemer med \u00e5pen kildekode vil kunstnerisk utviklede brikker overbevisende demonstrere fremgangsm\u00e5ter og dermed akselerere kommersiell adopsjon. Filosofien til generelle prosessorer i disse brikkene vil sannsynligvis v\u00e6re RISC, som har best\u00e5tt tidens pr\u00f8ve. Forvent like raske innovasjoner som i den forrige gullalderen, men denne gangen med tanke p\u00e5 kostnad, energi og sikkerhet, ikke bare ytelse.<\/p><\/blockquote>\n<p>\n\u00abI det kommende ti\u00e5ret vil det skje en kambrisk eksplosjon av nye datamaskinarkitekturer, noe som betyr spennende tider for datamaskinarkitekter b\u00e5de i akademia og i industrien,\u00bb konkluderer de p\u00e5 slutten av artikkelen.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dcmiran\/blog\/479074\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u0430\u0442\u0435\u0440\u0438\u043dc\u043a\u0430\u044f \u043f\u043b\u0430\u0442\u0430 SynQuacer E-Series \u0434\u043b\u044f 24-\u044f\u0434\u0435\u0440\u043d\u043e\u0433\u043e ARM-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043d\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0435 ARM Cortex A53 \u0441 32 \u0413\u0411 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438, \u0434\u0435\u043a\u0430\u0431\u0440\u044c 2018 \u0433\u043e\u0434\u0430 \u041c\u043d\u043e\u0433\u043e \u043b\u0435\u0442 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b ARM \u0441 \u0441\u043e\u043a\u0440\u0430\u0449\u0451\u043d\u043d\u044b\u043c \u043d\u0430\u0431\u043e\u0440\u043e\u043c \u043a\u043e\u043c\u0430\u043d\u0434 (RISC) \u0434\u043e\u043c\u0438\u043d\u0438\u0440\u0443\u044e\u0442 \u043d\u0430 \u0440\u044b\u043d\u043a\u0435 \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432. \u041d\u043e \u0438\u043c \u0442\u0430\u043a \u0438 \u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043f\u0440\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432 \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u044b, \u0433\u0434\u0435 \u043f\u043e-\u043f\u0440\u0435\u0436\u043d\u0435\u043c\u0443 \u0432\u043b\u0430\u0441\u0442\u0432\u0443\u044e\u0442 Intel \u0438 AMD \u0441 \u043d\u0430\u0431\u043e\u0440\u043e\u043c \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 x86. \u041f\u0435\u0440\u0438\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u0438 \u043f\u043e\u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f [&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":[688],"tags":[],"class_list":["post-53753","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/no\/blog\/administrirovanie\/nastupaet-epoha-arm-serverov\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.5\" \/>\n\t\t<meta property=\"og:locale\" content=\"nn_NO\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041d\u0430\u0441\u0442\u0443\u043f\u0430\u0435\u0442 \u044d\u043f\u043e\u0445\u0430 ARM-\u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432? 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