I-Apple: Ukulungisa ukuba sengozini kweZombieLoad kunganciphisa ukusebenza kwe-Mac ngo-40%

U-Apple uthe ukubhekana ngokugcwele nokuba sengozini kweZombieLoad kuma-Intel processors kunganciphisa ukusebenza kuze kufike ku-40% kwezinye izimo. Yiqiniso, konke kuzoxhomeka kuphrosesa ethile kanye nesimo lapho isetshenziswa khona, kodwa kunoma yikuphi lokhu kuzoba igalelo eliphawulekayo ekusebenzeni kwesistimu.

Okokuqala, ake sikukhumbuze ukuthi ngolunye usuku yaziwa ngomunye ubungozi obutholakala kumaphrosesa amaningi e-Intel. Ibizwa ngokuthi i-ZombieLoad, nakuba i-Intel ngokwayo ikhetha ukusebenzisa igama elingathathi hlangothi elithi Microarchitectural Data Sampling (MDS) noma i-Microarchitectural Data Sampling. Sesikhulume kabanzi mayelana inkinga ngokwayo futhi iyatholakala izindlela zokuyixazulula.

Manje i-Apple ishicilele isitatimende sayo mayelana ne-MDS, ngoba wonke amakhompyutha ayo e-Mac akhiwe kuma-Intel chips, ngakho-ke angahlaselwa. Inkampani iphinde yanikeza indlela eqinile, kodwa ephumelelayo, ngokusho kwayo, indlela yokuvikela ikhompuyutha yakho.

“I-Intel ithole ubungozi obubizwa nge-microarchitectural data sampling (MDS) obuthinta ideskithophu namakhompyutha aphathekayo anama-Intel processors, okuhlanganisa nawo wonke ama-Macs esimanje.

Ngesikhathi sokubhala lokhu, azikho izenzo zokuxhaphaza ezaziwayo ezithinta amakhasimende ethu. Nokho, abasebenzisi abakholelwa ukuthi ikhompuyutha yabo isengozini enkulu yokuhlaselwa bangasebenzisa uhlelo lweTheminali ukuze banike amandla i-CPU eyengeziwe futhi bakhubaze ubuchwepheshe be-Hyper-Threading ngokwabo, obuzohlinzeka ngokuvikeleka okuphelele kulezi zinkinga zokuphepha.

Le nketho iyatholakala ku-macOS Mojave, High Sierra neSierra. Kodwa kungaba nomthelela omkhulu ekusebenzeni kwekhompyutha yakho.

Ukuhlolwa okwenziwe yi-Apple ngoMeyi 2019 kukhombise ukwehla kokusebenza okufika ku-40%. Ukuhlola kufaka phakathi imithwalo yokusebenza enezintambo eziningi namabhentshimakhi atholakala esidlangalaleni. Ukuhlolwa kokusebenza kwenziwa kusetshenziswa amakhompyutha e-Mac akhethiwe. Imiphumela yangempela ingahluka kuye ngemodeli, ukucushwa, isimo sokusetshenziswa nezinye izici."

Qaphela ukuthi inkampani Kusho u-Intel ukuthi ukukhubaza i-Hyper-Threading akudingekile. Udinga nje ukusebenzisa isoftware eqinisekisiwe. Empeleni, i-Apple iphinde yashiyela umsebenzisi ukukhetha: zivikele ngokuphelele futhi yehlise ukusebenza, noma ishiye yonke into injengoba injalo. I-Intel iphinde yaphawula ukuthi isivele iwasebenzisile ama-hardware patches ngokumelene ne-MDS kuma-processor ayo esizukulwane sesishiyagalombili nesesishiyagalolunye, kanye nakuma-processor wesizukulwane sesibili se-Xeon-SP (i-Cascade Lake), ngakho-ke abasebenzisi balawa ma-chips akudingeki bakhathazeke ngobungozi obusha. .

Kodwa ngokuvamile, kuvela ukuthi ukuze uqinisekise ukuvikelwa okuphelele ngokumelene ne-ZombieLoad, udinga noma ubuyekeze ukucushwa kwesistimu futhi usebenzise iphrosesa yakamuva kuwo, noma ukhubaze i-Hyper-Threading, ngaleyo ndlela unciphise kakhulu ukusebenza kwesistimu. Nakuba lokhu kwakamuva kungeke kuvikeleke kwezinye izinsongo ezisebenzisa ukubulawa komyalo wokuqagela. Kukhona, nokho, enye inketho - ukusebenzisa uhlelo kuphrosesa ye-AMD. Kodwa esimweni samakhompyutha we-Apple lokhu akunakwenzeka.

Source: 3dnews.ru