Question: 4 . 5 a . Consider an L 1 cache with an access time of 5 n s and a hit ratio of H =

4.5 a. Consider an L1 cache with an access time of 5ns and a hit ratio of H=0.9. Suppose that the memory access time is 100ns and we can increase the cache access time to 6ns. What must be the hit ratio, H, for this change to result in improved performance?
b. Repeat the above question for a cache access time of 10ns.
4.5 a. Consider an L1 cache with an access time of

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

Consider a computing system where average memory access time is 120 ms. Suppose that pure paging is used for efficient memory utilization and a small fast hardware cache (TLB) is also used to...

Q:

2 ) A memory has 6 5 , 5 3 6 words of 3 2 bits each. What is the number of address lines needed to access this memory? ( 4 points ) 3 ) Consider a Level 1 cache with a \ ( 0 . 1 2 \ mu \ mathrm { ~s...

Q:

Problem 1 : Suppose a computer system has a cache memory that takes 2 0 nanoseconds ( ns ) to access and a main memory that takes 8 0 ns to access. If the hit ratio for this cache is 0 . 9 , what is...

Q:

Solve ALL the following exercises. Thank you in advance. 1. A particular processor has the following characteristics: clock speed of 1GHz, base CPI of 2.0 cycles (assuming no memory stalls), main...

Q:

Operation of Two-Level Memory The locality property can be exploited in the formation of a two-level memory. The upper-level memory (M1) is smaller, faster, and more expensive (per bit) than the...

Q:

Consider a single-level cache with an access time of 2 ns, a line size of 64 bytes, and a hit ratio H = 0.94. Main memory uses a block transfer capability that has a first-word (4 bytes) access time...

Q:

Cache: This is actually a long question that has been broken into small chunks... Consider a direct-mapped cache that has 4 lines, each containing 1 4-byte word. Assume that the cache has a hit...

Q:

we will examine multi-level cache timing. We will calculate the impact hit rates and access times have on the average time to obtain an item from memory. We will use 2 levels of cache plus main...

Q:

. Consider a single - level cache with an access time of 2 . 5 ns , a block size of 6 4 bytes, and a hit ratio of Main memory uses a block transfer capability that has a first - word ( 4 bytes )...

Q:

1 0 . Assure a processor has 3 levels of caches. Suppose that the tirne required to access the Ll ( primary ) cache on a hit is 1 cycle, the local Ll cache hit ratio is O . 9 0 , the to access the L...

Q:

On January 1, 2014, you bought a new Toyota automobile for $ 30,000. You made a $ 5,000 cash down payment and signed a $ 25,000 note, payable in four equal instalments on each December 31, the first...

Q:

Using the internal rate of return to compare investment opportunities Yvonne Tower has two alternative investment opportunities to evaluate. The first opportunity would cost $149,512.23 and generate...

Q:

Which of the following statements regarding the "American" vs . "European" options is FALSE?American option can be exercised at any date after purchaseEuropean option can only be exercised at the...

Q:

Name the molecule *

Q:

Economist John Taylor has suggested that the Fed use the following rule for choosing its target for the federal funds interest rate (r): r = 2% + + 12 (y y*) / y* + 12 ( *), where is the average...

Q:

Suppose banks install automatic teller machines on every block and, by making cash readily available, reduce the amount of money people want to hold. a. Assume the Fed does not change the money...

Q:

Consider two policiesa tax cut that will last for only 1 year and a tax cut that is expected to be permanent. Which policy will stimulate greater spending by consumers? Which policy will have the...