That’s a good point. Also imagine if the attacker controlled 7 out of the 8 threads on a core... maybe they would have even clearer statistics for analysis. Or

That’s a good point. Also imagine if the attacker controlled 7 out of the 8 threads on a core... maybe they would have even clearer statistics for analysis. Or maybe POWER9 is completely secure. My main point was that Epyc has already proven to be much more resistant to these attacks than Intel’s architecture, and it wouldn’t require dealing with porting your applications to run on a niche ISA, with very limited options to buy server hardware, and very few (if any) options to rent cloud instances on POWER9.