Kusamukira ku data center kupita ku DDR5 kungakhale kofunikira kwambiri kuposa kukweza kwina.Komabe, anthu ambiri amangoganiza momveka bwino kuti DDR5 ndikusintha kosinthiratu DDR4.Mapurosesa amasintha ndikufika kwa DDR5, ndipo adzakhala ndi zatsopanokukumbukirama interfaces, monga zinalili ndi mibadwo yam'mbuyomu ya kukweza kwa DRAM kuchokera ku SDRAM kupitaDDR4.
Komabe, DDR5 sikungosintha mawonekedwe, ikusintha lingaliro la processor memory system.M'malo mwake, kusintha kwa DDR5 kungakhale kokwanira kulungamitsa kukweza kwa seva yogwirizana.
Chifukwa chiyani musankhe mawonekedwe atsopano okumbukira?
Mavuto apakompyuta akhala ovuta kwambiri kuyambira pakubwera makompyuta, ndipo kukula kosalephereka kumeneku kwachititsa kuti chisinthiko chikhale chochuluka cha ma seva, kukumbukira kukumbukira ndi kusungirako nthawi zonse, komanso kuthamanga kwa mawotchi apamwamba komanso kuwerengera kwakukulu, komanso kuyendetsa kusintha kwa zomangamanga. , kuphatikizirapo kukhazikitsidwa kwaposachedwa kwa njira za AI zogawika komanso zogwiritsidwa ntchito.
Ena angaganize kuti zonsezi zikuchitika motsatira chifukwa ziwerengero zonse zikukwera.Komabe, ngakhale kuchuluka kwa ma processor cores akuchulukirachulukira, DDR bandwidth sikunayende bwino, kotero bandwidth pachimake chakhala chikuchepera.
Popeza ma seti a data akhala akukulirakulira, makamaka kwa HPC, masewera, kukopera makanema, kulingalira kwamakina, kusanthula kwakukulu kwa data, ndi nkhokwe, ngakhale bandwidth ya kusamutsidwa kukumbukira kumatha kuwongolera powonjezera njira zokumbukira ku CPU, Koma izi zimawononga mphamvu zambiri. .Kuwerengera kwa pini ya purosesa kumachepetsanso kukhazikika kwa njira iyi, ndipo kuchuluka kwa mayendedwe sikungachuluke kosatha.
Mapulogalamu ena, makamaka ma subsystems apamwamba kwambiri monga ma GPU ndi mapurosesa apadera a AI, amagwiritsa ntchito mtundu wa kukumbukira kwapamwamba kwambiri (HBM).Tekinolojeyi imayendetsa deta kuchokera ku tchipisi ta DRAM tosanjidwa kupita ku purosesa kudzera munjira zokumbukira za 1024-bit, ndikupangitsa kuti ikhale yankho labwino pamapulogalamu okumbukira kwambiri monga AI.M'mapulogalamuwa, purosesa ndi kukumbukira ziyenera kukhala pafupi kwambiri kuti zipereke kusamutsidwa mwachangu.Komabe, ndizokwera mtengo kwambiri, ndipo tchipisi sizingafanane ndi ma module osinthika / osinthika.
Ndipo kukumbukira kwa DDR5, komwe kudayamba kufalikira kwambiri chaka chino, kudapangidwa kuti kuthandizire kuwongolera mayendedwe pakati pa purosesa ndi kukumbukira, ndikuthandizirabe kukweza.
Bandwidth ndi latency
Mtengo wosinthira wa DDR5 ndiwofulumira kuposa wa m'badwo uliwonse wam'mbuyomu wa DDR, makamaka, poyerekeza ndi DDR4, kuchuluka kwa DDR5 kumaposa kuwirikiza kawiri.DDR5 imabweretsanso zosintha zina zamapangidwe kuti zitheke kugwira ntchito pamitengo yosinthirayi pazopeza zosavuta komanso kuwongolera magwiridwe antchito amabasi a data.
Kuonjezera apo, kutalika kwake kunawirikiza kawiri kuchokera ku BL8 kufika ku BL16, kulola kuti gawo lililonse likhale ndi njira ziwiri zodziyimira pawokha komanso kuwirikiza kawiri njira zomwe zilipo mu dongosolo.Sikuti mumangothamanga kwambiri, komanso mumapeza njira yomangidwanso yomwe imaposa DDR4 ngakhale popanda mitengo yosinthira.
Njira zokumbukira zambiri ziwona kukwera kwakukulu kuchokera pakusintha kupita ku DDR5, ndipo zambiri zamasiku ano zodzaza ndi deta, makamaka AI, nkhokwe, ndi kukonza kwapaintaneti (OLTP), zikugwirizana ndi kufotokozeraku.
Mlingo wotumizira nawonso ndiwofunika kwambiri.Kuthamanga kwaposachedwa kwa kukumbukira kwa DDR5 ndi 4800 ~ 6400MT/s.Pamene luso lamakono likukhwima, chiwerengero chotumizira chikuyembekezeka kukwera.
Kugwiritsa ntchito mphamvu
DDR5 imagwiritsa ntchito magetsi otsika kuposa DDR4, mwachitsanzo 1.1V m'malo mwa 1.2V.Ngakhale kusiyana kwa 8% sikungamveke ngati kwakukulu, kusiyana kumawonekera pamene ali ndi squared kuti awerengere kuchuluka kwa mphamvu yogwiritsira ntchito mphamvu, mwachitsanzo 1.1²/1.2² = 85%, zomwe zikutanthauza kupulumutsa 15% pamagetsi amagetsi.
Zosintha zamamangidwe zomwe zimayambitsidwa ndi DDR5 zimakulitsa magwiridwe antchito a bandwidth komanso kuchuluka kwakusamutsa, komabe, manambalawa ndi ovuta kuwerengera popanda kuyeza malo enieni omwe ukadaulo umagwiritsidwa ntchito.Koma kachiwiri, chifukwa cha kamangidwe kabwino kamangidwe ndi kusuntha kwapamwamba, wogwiritsa ntchito mapeto adzawona kusintha kwa mphamvu pa data.
Kuphatikiza apo, gawo la DIMM limathanso kusintha ma voliyumu palokha, zomwe zingachepetse kufunikira kwa kusintha kwamagetsi a boardboard, potero kupereka zowonjezera zopulumutsa mphamvu.
Kwa malo opangira ma data, kuchuluka kwa mphamvu zomwe seva imawononga komanso kuchuluka kwa kuzizira komwe kumakhala nkhawa, ndipo zinthuzi zikaganiziridwa, DDR5 ngati gawo logwiritsa ntchito mphamvu zambiri lingakhale chifukwa chokweza.
Kukonza zolakwika
DDR5 imaphatikizanso kuwongolera zolakwika pa-chip, ndipo njira za DRAM zikapitilira kuchepa, ogwiritsa ntchito ambiri akuda nkhawa ndi kuchuluka kwa zolakwika zapang'onopang'ono komanso kukhulupirika kwathunthu kwa data.
Pamapulogalamu a seva, pa-chip ECC imakonza zolakwika zapang'onopang'ono powerenga malamulo musanatulutse deta kuchokera ku DDR5.Izi zimatsitsa zolemetsa zina za ECC kuchokera ku algorithm yokonza dongosolo kupita ku DRAM kuti muchepetse katundu pamakina.
DDR5 imayambitsanso kuyang'ana zolakwika ndi kuyeretsa, ndipo ngati zithandizidwa, zida za DRAM zimawerenga zamkati ndikulemba zomwe zakonzedwa.
Fotokozerani mwachidule
Ngakhale mawonekedwe a DRAM nthawi zambiri sizinthu zoyamba zomwe malo opangira ma data amaganizira akamakweza, DDR5 imayenera kuyang'anitsitsa, popeza ukadaulo umalonjeza kupulumutsa mphamvu ndikuwongolera magwiridwe antchito.
DDR5 ndi ukadaulo wothandizira womwe umathandizira otengera oyamba kusamukira ku malo osinthika, owopsa amtsogolo.Atsogoleri a IT ndi mabizinesi akuyenera kuwunika DDR5 ndikuwona momwe angasamukire kuchokera ku DDR4 kupita ku DDR5 ndi nthawi yake kuti amalize mapulani awo osintha malo a data.
Nthawi yotumiza: Dec-15-2022
