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ISRO | ISRO CS 2017 | Question 38
A CPU has a 32 KB direct mapped cache with 128 byte block size. Suppose A is a 2 dimensional array of size 512×512 with elements that occupy 8 bytes each. Consider the code segment
for (i =0; i < 512; i++) {
for (j =0; j < 512; j++) {
x += A[i][j];
}
}
Assuming that array is stored in order A[0][0], A[0][1], A[0][2]……, the number of cache misses is
(A)
16384
(B)
512
(C)
2048
(D)
1024
Answer
Please comment below if you find anything wrong in the above post
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