krose5807
10.04.2020 •
Computers and Technology
You purchased an Acme computer with the following features:
• 95% of all the memory access are found in the cache.
• Each cache block is two words, and the whole block is read on any miss.
• The processor sends references to its cache at the rate of 109 words per second.
• 25% of those references are writes.
Assume that the memory system can support 109 words per second, reads or writes. The bus reads or writes a single word at a time (the memory cannot read or write two words at once). Assume at any one time, 30% of the blocks in the cache have been modified. The cache uses write-allocate on a write miss.
You are considering adding a peripheral to the system and you want to know how much of the memory system bandwidth is already used. Calculate the percentage of memory-system bandwidth used on the average in the two cases below. Be sure to state your assumptions.
(a) The cache is write-through.
(b) The cache is write-back.
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Ответ:
Yes, this statement is completely true
Explanation:
Yes, this statement is completely true. A personal computer is a multimedia machine and can be used to complete an incredibly large number of tasks with ease. Such tasks include all of the ones listed in the question. Aside from that other tasks depend more on the skill level and understanding of the user. For example, an individual who has a vast understanding of technology and programming can create software to perform absolutely any task they may want or need to do.