Ikhowudi yomthombo we-Linux kernel ityhila iimfihlo ezininzi ze-AMD Zen

Ngexesha elithile elidlulileyo, iindaba malunga nemikhondo yokusebenza kwefayile ye- Ubuncinci bokwakhiwa kwe-AMD Zen enkosi kwikhowudi ebonelelwe kwi-Linux kernel ukuyixhasa. Kwaye uZen uvusa umdla omkhulu kuba kwi-AMD benze iinzame ezingaphaya komntu, kurhoxiswa zonke iiprojekthi ebezicwangcisile kwaye bejolise kwimizamo yabo kwiZen, befunda kwiimpazamo zobuchwephesha bangaphambili. Okwangoku, kuqikelelwa ukuba ine-40% yokuphuculwa kwe-IPS xa kuthelekiswa nobuchule bokwakha obuncinci.

I-AMD inengqondo yokubuyela kwinto eyayiyiyo kwaye ime kwi-Intel kwaye ufumane isabelo sentengiso samaxesha aso afanelekileyo. Ngenxa yoko, kuye kwafunwa iqabane elinamandla kakhulu, i-Samsung, iifektri zayo zezona zihambele phambili kwaye ziya kubonelela ngetekhnoloji yokuvelisa ye-14nm FinFET (into ethi i-Intel isilele mva nje kwaye inyanzelwe ukuba ilibazise kwaye imise iiprojekthi ngenxa yeengxaki kwimveliso yayo. Itekhnoloji). Ukongeza, i-AMD ifumene iingqondo ezishushu ukuba uLisa Su ubuyile kwinkampani eluhlaza emva kokulahleka kwabo ngaphambili, ukongeza kwezinye iingcali eziphezulu.

Inkampani ihlengahlengisiwe Kwaye endaweni yokusebenza njengamaxesha ali-10 ubukhulu bayo, njengangaphambili, ngoku isebenza njengeshishini elincinci kwaye eligugileyo. Kwaye iingqondo endithetha ngazo zinobunzima, njengoRaja Koduri, ingcali ye-GPU eshiye i-AMD yeApple kwaye ngoku ibuyile. UMark Papermaster ukwasebenzele iApple, IBM kunye nePA Semi, esebenza kwiiprojekhthi ezinjengePowerPC microprocessor okanye iPower enamandla, ngoku naye ujoyina i-AMD. Kodwa i-icing kwikhekhe nguJim Keller (kwiintsuku ezimbalwa ezidlulileyo waqeshwa ngu-Elon Musk weTesla Motor), naye oya e-Apple ukukhokela i-ARM Ax Series SoCs kwaye bambalwa abantu abazi kakhulu malunga nokusebenza okuphezulu kweetshipsi njenge Umthengisi.

Kungenxa yoko le nto iZen kufuneka ibe yimpumelelo kwaye yile nto ngoku siyibonileyo idatha esuka kumanqaku angama-32 ayakufikelelwa yiZen, anje nge igama lefayile Zeppelin kumyalezo "I-AMD Zeppelin (uSapho lwe-17h, iModeli 00h) wazisa ngemiyalelo yekhawuntara yokusebenza ebonakalisiweyo yiCPUID.8000_0008H: EBX [1]. Imiyalelo yokuBhaliswa kwabaThathe umhlala-phantsi (MSR 0xC000_000E9) yokunyusa kube kanye kuyo yonke imiyalo ethathe umhlala-phantsi.«. Kwaye oku kulandelayo kubonelelwe nge-kernel yeLinux, apho "i-core_complex" ibonwa kwaye enokubhekisa kwiYunithi yeComputer ye-AMD

+core_complex_ide = (apicid & ((1 << c->x86_coreid_bits) - 1)) >> 3;

+per_cpu(cpu_llc_id, cpu) = (socket_id << 3) | core_complex_id;