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The Instruction Translation Lookaside Buffer(ITLB) is present in

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in Microprocessor by (39.4k points)
The Instruction Translation Lookaside Buffer(ITLB) is present in

(a) trace cache

(b) instruction decoder

(c) logical processors

(d) all of the mentioned

This question was addressed to me in an interview.

My doubt stems from Netburst Microarchitecture For Pentium4 -2,  Instruction Translation Lookaside Buffer (ITLB) and Branch Prediction topic in division Pentium 4 processor of Microprocessor

1 Answer

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by (49.2k points)
Right option is (c) logical processors

Easy explanation: Since there are two logical processors, there are two ITLBs. Thus each logical processor has its own ITLB and its own instruction pointer to track the progress of instruction fetch for each of them.

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