What are common cache coherence issues in distributed systems?
Common cache coherence issues include stale data, false sharing, and cache thrashing. Would you like to know more about any specific issue?
Can you explain stale data and how it affects performance?
Stale data occurs when a cache holds outdated information. This can lead to inconsistencies and performance degradation as systems may operate on incorrect data.
What is false sharing?
False sharing happens when threads on different processors modify variables that reside on the same cache line, causing unnecessary cache invalidations and performance hits.
How can we mitigate these cache coherence issues?
Mitigation strategies include using proper synchronization mechanisms, optimizing data structures, and minimizing shared data access.
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