Tag: cache
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Distributed File Systems – Summary and notes
This lesson introduces network file system (NFS) and presents the problems with it, bottlenecks including limited cache and expensive input/output (I/O) operations. These problems motivate the need for a distributed file system, in which there is no longer a centralized server. Instead, there are multiple clients and servers that play various roles including serving data…
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A brief introduction to cache organization
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…