Integrated: 8288047: Accelerate Poly1305 on x86_64 using AVX512 instructions

[Volodymyr Paprotski]

On Wed, 5 Oct 2022 21:28:26 GMT, Volodymyr Paprotski <duke at openjdk.org> wrote:

> Handcrafted x86_64 asm for Poly1305. Main optimization is to process 16 message blocks at a time. For more details, left a lot of comments in `macroAssembler_x86_poly.cpp`.
> 
> - Added new KAT test for Poly1305 and a fuzz test to compare intrinsic and java.
>   - Would like to add an `InvalidKeyException` in `Poly1305.java` (see commented out block in that file), but that conflicts with the KAT. I do think we should detect (R==0 || S ==0) so would like advice please.
> - Added a JMH perf test.
>    - JMH test had to use reflection (instead of existing `MacBench.java`), since Poly1305 is not 'properly' registered with the provider.
> 
> Perf before:
> 
> Benchmark                   (dataSize)  (provider)   Mode  Cnt        Score        Error  Units
> Poly1305DigestBench.digest          64              thrpt    8  2961300.661 ± 110554.162  ops/s
> Poly1305DigestBench.digest         256              thrpt    8  1791912.962 ±  86696.037  ops/s
> Poly1305DigestBench.digest        1024              thrpt    8   637413.054 ±  14074.655  ops/s
> Poly1305DigestBench.digest       16384              thrpt    8    48762.991 ±    390.921  ops/s
> Poly1305DigestBench.digest     1048576              thrpt    8      769.872 ±      1.402  ops/s
> 
> and after:
> 
> Benchmark                   (dataSize)  (provider)   Mode  Cnt        Score        Error  Units
> Poly1305DigestBench.digest          64              thrpt    8  2841243.668 ± 154528.057  ops/s
> Poly1305DigestBench.digest         256              thrpt    8  1662003.873 ±  95253.445  ops/s
> Poly1305DigestBench.digest        1024              thrpt    8  1770028.718 ± 100847.766  ops/s
> Poly1305DigestBench.digest       16384              thrpt    8   765547.287 ±  25883.825  ops/s
> Poly1305DigestBench.digest     1048576              thrpt    8    14508.458 ±     56.147  ops/s

This pull request has now been integrated.

Changeset: f12710e9
Author:    Volodymyr Paprotski <volodymyr.paprotski at intel.com>
Committer: Sandhya Viswanathan <sviswanathan at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/f12710e938b36594623e9c82961d8aa0c0ef29c2
Stats:     1860 lines in 32 files changed: 1824 ins; 3 del; 33 mod

8288047: Accelerate Poly1305 on x86_64 using AVX512 instructions

Reviewed-by: sviswanathan, vlivanov

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PR: https://git.openjdk.org/jdk/pull/10582