Technical - Time taken to access cache is 100ns and to access memory is 1000ns.Hit ratio given. Find the average

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Time taken to access cache is 100ns and to access memory is 1000ns.
Hit ratio given. Find the average access time

Total Answers and Comments: 5

Last Update: October 08, 2009

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August 15, 2005 01:37:11

Amit Dhamija

RE: Time taken to access cache is 100ns and to access memory is 1000ns.Hit ratio given. Find the average...

hitratio * (100+1000)+(1-hitratio)+(100+1000+1000)

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September 28, 2005 19:05:49

sameergupta

Member Since: September 2005 Contribution: 6

RE: Time taken to access cache is 100ns and to access ...

Average access time will be

[(Hit ratio*1000)+((1-Hit ratio)*(1000+100))]/(1000+100)

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November 29, 2005 13:04:48

Rashi Bhardwaj

RE: Time taken to access cache is 100ns and to access ...

The Formula is-

tch+tmh

ie 100*hit ratio +1000 *hit ratio

N i m dead sure abt this answer

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December 06, 2005 11:45:27

hari

RE: Time taken to access cache is 100ns and to access ...

T_average (1 - H) x T_slow + H x T_fast

where T stands for access time. You could rearrange this to express what the hit ratio is in terms of the 3 access times

H (T_slow - T_ave)/(T_slow - T_fast)

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October 07, 2009 00:42:10

Shadab Rabbani

Member Since: October 2009 Contribution: 1

RE: Time taken to access cache is 100ns and to access memory is 1000ns.Hit ratio given. Find the average access time

100 + (1-H)1000
Where H Cache hit ratio

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