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Recent questions tagged hit-ratio

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GO Classes Test Series 2023 | CO and Architecture | Test 3 | Question: 2
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 ...
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Accesing time
Could you please differentiate below. Memory access time.hit time. search time??Arey yar some one answer this.. why so dumb
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Applied Practice test
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...
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Self-doubt
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)
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effective memory access time
A demand paging uses a TLB and a single level page table stored in main memory. The memory access time is 5s. The page fault service time is 25s. If 70% of access is in T...
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TLB hit ration and memory lookup time
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, ...
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CO madeeasy 2019 Multi level cache
please explain how hit ratio of L2 is taken as 0.5? instead of 0.9 as 10 misses are mentionedis it like as 20 misses at levle 1 out of which only 10 missed at level 2, so...
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TLB OS
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...
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made easy tt2
IS THE ANSWER 1.794??
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My doubt on TLB and page fault
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...
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Hit Ratio and miss ratio question
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...
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CO Page fault
How this is 20000? the array is in RMO and we are accessing like CMO then for each entry there should be PF.
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ace test series
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ETA-TLB-page fault
TLB lookup time = 20 nsTLB hit ratio = 99%Memory access time = 100 nsPage fault rate = 0.05%Swap time = 5000000 nsWhat is the EAT if we assume that all pages currently in...
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TLB HITS
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...
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cache hit ratio
Consider an array A[200] and each element occupies 8-words. A 64-word cache is used and divided into 16-word blocks. What is the hit ratio for the following code segment:...
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Performance c
Consider the system have L1 data cache with 50 percent of hit rate and take 2 cycles when hit in L1 cache, L2 cache with 70% of hit rate and take 15 cycles when hit in L2...
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Multilevel TLB performance
A computer has a 128-entry $L_1$ TLB, 1024-entry $L_2$ TLB, and uses page size of 4KB. A program reads a 1MB array, one byte at a time from start to end, 10 times. Assumi...
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Average access time
Consider two level memory systems in which the average access time is 150 ns without level L1 . The level 1 access time is 20 ns . The average access time with L1 is 40 n...
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tlb segmentation paging
Consider a memory system consists of a single external cache with an access time of 30ns and a hit rate of 0.85, and a main memory with an access time of 80ns. Now we add...
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TLB paging
Consider a system with 2-levels of paging and a TLB with hit rate of 95% and TLB access time of 1ns. Find the effective memory access time if there’s a data cache whose...
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In a two level hierarchy if the top level has an access time of 8ns and the bottom level has an access time of 60 ns.
In a two level hierarchy if the top level has an access time of 8ns and the bottom level has an access time of 60 ns. What is the hit ratio in top level required to give ...
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