HIRE QUALIFIED ACADEMIC WRITERS
1) Given a virtual memory system with:virtual address 37 bitsphysical address 32 bits32KB pages (15 bit page offset)Each page table entry has bits for valid, execute, read and dirty(4 bits total) and bits for a physical page number.a) How many bits in the page table? (do not answer in bytes!)Three digit accuracy is good enough. The exponent may be eithera power of 2 or a power of 10.b) The virtual address is extended to 38 bits, all else stays the same.How many bits in the page table? (do not answer in bytes!)Three digit accuracy is good enough. The exponent may be eithera power of 2 or a power of 10.Note: There will be a page table for every process that is running,yet the page tables are typically not completely allocated. Onlythe sections of the page table being used are typically populated.c) A fully associative TLB that has 32 blocks, 1 entry per block,is needed for the page table like a) VA=36, PA=32, PO=15.The TLB must hold a page table entry and a tag in each block.How many bits in the TLB? (do not answer in bytes!)d) Draw a two way associative TLB that has 4 blocks, 8 total PPN’s,for the page table a) Virtual address 35 bits, physical address32 bits, offset 15 bits, 4 bits V,E,R,D.See lecture 21 for 4 way associative cash, you only use 2.The top will be the virtual address with the virtual pagenumber and virtual page offset.The bottom will be the physical address with the physicalpage number and physical page offset.Show the detail of all fields, connections, mux, comparators.Label the width of all fields and signals.Refer to the textbook or class lecture notes for sample TLB’s.If you send EMail, make sure it prints in 80 column fixed width font.2) Compute file read time for a 1MB file for a typical hard drive anda solid state drive, SSD, in milli secondsa) Hard drive:published average seek time 3.0msrotation speed 10,000rpmoverhead 2.0mstransfer rate 80MB/sb) SSDoverhead 1.5mstransfer rate 80MB/sc) speedup of SSD drive
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