RFR(S)JDK-8214074: Ghash optimization using AVX instructions
fweimer at redhat.com
Mon Nov 19 21:54:49 UTC 2018
* Smita Kamath:
> I'd like to contribute an optimization for GHASH Algorithm using AVX
> Instructions. I have tested this optimization on SKX x86_64 platform
> and it shows ~20-30% performance improvement for larger message sizes
> (for example 8k).
Performance improvement against what? The pure Java implementation? I
find this a bit surprising. I would have expected a much larger
performance improvement from the use of CLMUL instructions.
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