Recent questions tagged hit-ratio

Consider the following piece of a program for a hypothetical processor having two user registers R1 and R2.\begin{array}{|l|l|l|}\hline \text{Instruction} & \text{Underly...

Suppose that the level $1$ data cache has a hit rate of $40 \%$ on your application, an access time of a single cycle, and a miss penalty to memory of forty cycles. What ...

Given a single-level, direct-mapped cache with a $256 \text{ B}$ block size starting in a 'cold' state, i.e., all entries are initially invalid. We store an array '$\oper...

If a memory system consists of a single external cache with an access time of $20$ ns and a hit rate of $0.92,$ and a main memory with an access time of $60$ ns, what is ...

Could you please differentiate below. Memory access time.hit time. search time??Arey yar some one answer this.. why so dumb

Suppose: TLB lookup time = 20 nsTLB hit ratio = 80%Memory access time = 75 nsPFST = 500,000 ns50% of the pages are dirtyOS uses a single level page tableWhat is the appro...

The performance of a file system depends upon the cache hit rate. If it takes $1$ msec to satisfy a request from the cache but $10$ msec to satisfy a request if a disk re...

How to improve cache hit rate in case of transfer of element from 2-D array to matrix.? (Consider the column major order in 2D array)

Consider a system where TLB lookup time is $25$ ns and memory access time is $200$ ns, respectively. Assuming a virtual address space of $2$ KB, page size of $32$ bytes, ...

Why the formula used here is not P(10) + (1-P)(50) = 20 ?;A computer keeps its page tables in memory. The time required to read a word from the pagetable is 50ns. To redu...

What hit ratio is required to reduce the effective memory access time from 200 ns to 140 ns if the cache access time is 20 ns?a)85%b)40%c)90%d)95%

First read this whole thing what I am writing below:Case 1: If we have to access unit address in memory using TLB and we assume that no page fault occurs then,EMAT=p( T+M...

In some problems we multiply only with the second part of the equation with (1-H1) component and leave the first part. Whereas in other cases we multiply with cache hit a...

How this is 20000? the array is in RMO and we are accessing like CMO then for each entry there should be PF.

What is the average memory access time (correct to two decimal places) when you have the following memory hierarchy? Assume that (i) the cache uses physical addresses, (i...