Mickey: The Combined Performance Impact Of Security Mitigations On Cascade Lake Following...

If looking at the geometric mean across dozens of benchmarks carried out, the new CPU microcode update lowered the performance by 1~2%. With the new CPU microcode, the cost of the default mitigations on Cascade Lake with this dual Xeon Platinum server was just ~1%. Having TSX enabled and thus TSX Async Abort in place meant losing a few percent on performance while TAA combined with Hyper Threading is where the performance was about 15% lower compared to the best results. So at least...

The Combined Performance Impact Of Security Mitigations On Cascade Lake Following Recent JCC Erratum + TAA

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