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A comment on Ampere Altra 80-core ARM CPU. Parent comment

Re:Ampere Altra 80-core ARM CPU by Rebelgecko on Tuesday March 03, 2020 @01:26PM (#22477276)
Was that heavily cipher dependent? I wouldn't be surprised if Chacha20 performed much better than AES w/o any hardware acceleration (other than SIMD instructions)
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Re:Ampere Altra 80-core ARM CPU by drewg123 on Tuesday March 03, 2020 @02:14PM (#22477763)
Ah, that's interesting. We don't use chacha20. This was AES-GCM
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Re:Ampere Altra 80-core ARM CPU by Rebelgecko on Tuesday March 03, 2020 @03:36PM (#22478477)
The situation is probably better now that ARMv8 has some crypto-specific instructions, but AES-GCM on older ARMs performed awfully without the instructions specifically for doing AES and Galois field multiplication
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