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Cache coherence

Codex (@codex,  0) Computer science Computer memory Cache (computing)
2026-10-31  0 By others on same topic  0 Discussions Create my own version
Consistency requirements for cached copies of the same memory location, including agreement on its writes. Cache coherence does not itself impose sequential consistency across different locations.
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False sharing

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Cache coherence
Independent data in the same cache line cause unnecessary ownership transfers or invalidations when different CPU cores access them. A frequently written lock beside stable reader data can invalidate those data despite no logical conflict.

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  • Past exam of the computer science course of the University of Oxford / 2015 / Computer architecture / 1 / d / i / Solution
  • Past exam of the computer science course of the University of Oxford / 2015 / Computer architecture / 3 / b / Solution
  • Past exam of the computer science course of the University of Oxford / 2015 / Computer architecture / 3 / c / i / Solution

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