Unverified50% confidenceFactExact time
False sharing refers to the situation where two threads separately modify different variables located on the same cache line, causing the cache coherence protocol (such as MESI) to force the cache line to repeatedly invalidate and synchronize across cores, resulting in performance degradation.
1
Sources
50%
Confidence
Long-term
Relevance
9/4/2026
First Seen
Sources
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