One performance optimization commonly used is to pad synchronization variables to not have any other useful data
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One performance optimization commonly used is to pad synchronization variables to not have any other useful data in the same cache line as the synchronization variable. Construct a pathological example when not doing this can hurt performance. Assume a snooping write invalidate protocol.
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Assume a cache line that has a synchronization variable and the data guarded by that syn...View the full answer
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Related Book For 
Computer Architecture A Quantitative Approach
ISBN: 978-8178672663
5th edition
Authors: John L. Hennessy, David A. Patterson
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