Matt Chung

Tag: l1 cache

  • Shared Memory Machine Model (notes)

    Shared Memory Machine Model (notes)

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    Matt Chung
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    You need to take away the following two themes for shared memory machine model: Difference and relationship between cache coherence (dealt with in hardware) and cache consistency (handled by the operating system) The different memory machine models (e.g. dance hall, symmetric multiprocessing, and distributed shared memory architecture) Cache coherence is the promise delivered by the…

  • A brief introduction to cache organization

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    Matt Chung
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    As a software programmer, I always had a vague understanding of how an operating system fetches data from memory.  At an abstract level, I understood that a processor requests data from the memory controller, sending a message (with the memory address encoded) across the bus. But I learned recently that in addition to the system’s…