Michael Frank, Fellow and System Architect at Arteris IP is quoted in this new with Semiconductor Engineering article:
The High But Often Unnecessary Cost Of Coherence
December 22nd, 2021 - By Brian Bailey
Cache coherency is expensive and provides little or negative benefit for some tasks. So why is it still used so frequently?
“Coherence is a contract between agents that says, ‘I promise you that I will always provide the latest data to you,'” says Michael Frank, fellow and system architect at Arteris IP. “It is mostly important when you have a lot of people sharing the same data set. Coherence between equal peers is very important and will not go away.”