JEP Review: JVM Hardware Crypto Acceleration
Anthony Scarpino
anthony.scarpino at oracle.com
Tue Sep 30 18:06:20 UTC 2014
On 09/30/2014 02:51 AM, Florian Weimer wrote:
> On 09/29/2014 10:33 PM, Anthony Scarpino wrote:
>> Please review the below JEP for JVM Hardware Crypto Acceleration. The
>> focus is to use ISA crypto instructions available in x86 and sparc
>> platforms and to help access to use them.
>>
>> https://bugs.openjdk.java.net/browse/JDK-8046943
>
> Can you show what you actually benchmarked? Just GHASH, or the full
> cipher suite?
>
> The actual impact of this change will be less than expected for TLS
> because after fixing GHASH (for which I had already posted a patch), the
> TLS implementation is largely GC-bound.
>
As this being a work in progress, much isn't done. That being said, the
prototype using PCLMULQDQ with AES-GCM performed roughly 34x better.
Tony
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