Question D.1: Effective Access Time A computer keeps its page tables in memory. Memory access time is 100 nanoseconds (ns). Answer the following questions about the performance of this setup. Show your work. a) What is the effective access time (i.e. reading a word in memory) with no caching and a two-level page table? b) Consider the above scenario but with a TLB having a cache hit rate of 98%. If the TLB takes 20 ns to access, what is the effective access time of this setup when considering this TLB?
Question D.1: Effective Access Time A computer keeps its page tables in memory. Memory access time is 100 nanoseconds (ns). Answer the following questions about the performance of this setup. Show your work. a) What is the effective access time (i.e. reading a word in memory) with no caching and a two-level page table? b) Consider the above scenario but with a TLB having a cache hit rate of 98%. If the TLB takes 20 ns to access, what is the effective access time of this setup when considering this TLB?
Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)
1st Edition
ISBN:9781305657458
Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell
Publisher:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell
Chapter6: Computing Components: Processors, Memory, The Cloud, And More
Section: Chapter Questions
Problem 21CT
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Transcribed Image Text:Question D.1: Effective Access Time
A computer keeps its page tables in memory. Memory access time is 100 nanoseconds (ns). Answer the
following questions about the performance of this setup. Show your work.
a) What is the effective access time (i.e. reading a word in memory) with no caching and a two-level page
table?
b) Consider the above scenario but with a TLB having a cache hit rate of 98%. If the TLB takes 20 ns to
access, what is the effective access time of this setup when considering this TLB?
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