The access time of cache memory is 45 nsec and that of main memory is 750 nsec. It is found that 75% of memory requests are for read and remaining for write. If the hit access for read and write is 0.9 and 1 respectively and write through protocol is used, then the average memory access time is ________. (in nsec)
Doubt: what is read equation,
0.75[0.9(45)+0.1(45+750)], because write through protocol is used in write equation
In answer given 0.75[0.9(45)+0.1(750)]
where i lag the concept,please help
