Re: [討論] 國民黨執政中華民國時期對臺灣半導體產業的貢獻

5.10 Parallelism and Memory Hierarchy: Cache Coherence Given that a multicore multiprocessor means multiple processors on a single chip, these processors very likely share a common physical address space. Caching shared data introduces a new problem, because the view of memory held by two different processors is through their individual caches, which, without any additional precautions, could end up seeing two distinct values. Figure 5.40 illustrates the problem and shows how two different processors can have two different values for the same location. This difficulty is generally referred to as the cache coherence problem. 節錄自Computer Organization and Design PH的教科書 這就計算機結構課程裡的東西 我完全看不出跟這個議題的關連性在哪 有興趣鑽研的人還可以看 A Primer on Memory Consistency and Cache Coherence https://course.ece.cmu.edu/~ece847c/S15/lib/exe/fetch.php?media=part2_2_sorin12.pdf ----- Sent from JPTT on my iPhone -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 211.20.245.139 (臺灣) ※ 文章網址: https://www.ptt.cc/bbs/DummyHistory/M.1698176608.A.032.html