Which coherence protocol uses a write-inv… | Answer

Subject

Computer Science

Topic

Computer Hardware

Which coherence protocol uses a write-invalidate approach across cores?
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ক)

MSI/MESI variants

খ)

Write-through with no snoop

গ)

Directoryless broadcast only

ঘ)

ECC scrubbing

Explanation

MESI adds the Exclusive state to MSI, improving performance for private lines. On a write, caches invalidate other sharers to maintain single writer. Snooping or directories track sharers and transitions. It’s a cornerstone of multicore memory consistency.

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Which coherence protocol uses a write-invalidate approach across cores?Reading

Which coherence protocol uses a write-invalidate approach across cores?

Explanation

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Which coherence protocol uses a write-invalidate approach across cores?
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