傳Zen2處理器良率超過70%:成本比Intel低 - 3C

By Liam
at 2019-04-20T00:11
at 2019-04-20T00:11
Table of Contents
※ 引述《kuankubank ( )》之銘言:
: 將CPU核心與IO核心獨立,Rome處理器實際上是8組CPU核心+1組IO核心組成。
: AMD這種模組化晶片在延遲上不如原生多核心,但好處還是太多了,製造難度
: 大幅下降,良率大幅提升。
: 這種chiplets設計會越來越流行,它可以靈活搭配不同製程、不同架構的晶片,
: 代價是延遲會有所增加,但是與獲得的好處相比依然是值得的,因為製造多個
: 小核心晶片的難度要比製造原生多核心的晶片低多了,良率會大幅提升,進而控制成本
。
我比較好奇的是
這樣的IO延遲到底值不值得
假設在成本考量小於效能考量的時候
資料中心會怎麼選
現在資料中心搭配虛擬化的前提是IO要快
如果IO都慢了 那核心多的好處還有嗎
因為瓶頸就又跑回去IO了?
--
: 將CPU核心與IO核心獨立,Rome處理器實際上是8組CPU核心+1組IO核心組成。
: AMD這種模組化晶片在延遲上不如原生多核心,但好處還是太多了,製造難度
: 大幅下降,良率大幅提升。
: 這種chiplets設計會越來越流行,它可以靈活搭配不同製程、不同架構的晶片,
: 代價是延遲會有所增加,但是與獲得的好處相比依然是值得的,因為製造多個
: 小核心晶片的難度要比製造原生多核心的晶片低多了,良率會大幅提升,進而控制成本
。
我比較好奇的是
這樣的IO延遲到底值不值得
假設在成本考量小於效能考量的時候
資料中心會怎麼選
現在資料中心搭配虛擬化的前提是IO要快
如果IO都慢了 那核心多的好處還有嗎
因為瓶頸就又跑回去IO了?
--
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