[jdk17u-dev] RFR: 8299158: Improve MD5 intrinsic on AArch64

[Paul Hohensee]

On Thu, 5 Jan 2023 06:49:24 GMT, Yi-Fan Tsai <duke at openjdk.org> wrote:

> This change is nearly clean. 17u uses macro and tip uses functions.
> 
> TestMD5Intrinsics and TestMD5MultiBlockIntrinsics are tested with [the patch](https://github.com/openjdk/jdk/pull/10954).
> 
> Similar performance improvement is observed.
> 
> baseline
> 
> Benchmark                    (digesterName)  (length)  (provider)   Mode  Cnt     Score   Error   Units
> MessageDigests.digest                   md5        64     DEFAULT  thrpt   50  2987.994 ? 3.246  ops/ms
> MessageDigests.digest                   md5      1024     DEFAULT  thrpt   50   370.344 ? 0.683  ops/ms
> MessageDigests.digest                   md5     16384     DEFAULT  thrpt   50    24.773 ? 0.038  ops/ms
> MessageDigests.getAndDigest             md5        64     DEFAULT  thrpt   50  2543.829 ? 3.060  ops/ms
> MessageDigests.getAndDigest             md5      1024     DEFAULT  thrpt   50   364.196 ? 0.319  ops/ms
> MessageDigests.getAndDigest             md5     16384     DEFAULT  thrpt   50    24.741 ? 0.021  ops/ms
> 
> 
> optimized
> 
> Benchmark                    (digesterName)  (length)  (provider)   Mode  Cnt     Score   Error   Units
> MessageDigests.digest                   md5        64     DEFAULT  thrpt   50  3671.576 ? 2.780  ops/ms
> MessageDigests.digest                   md5      1024     DEFAULT  thrpt   50   462.163 ? 0.724  ops/ms
> MessageDigests.digest                   md5     16384     DEFAULT  thrpt   50    31.137 ? 0.058  ops/ms
> MessageDigests.getAndDigest             md5        64     DEFAULT  thrpt   50  3015.830 ? 4.608  ops/ms
> MessageDigests.getAndDigest             md5      1024     DEFAULT  thrpt   50   453.550 ? 0.263  ops/ms
> MessageDigests.getAndDigest             md5     16384     DEFAULT  thrpt   50    31.039 ? 0.006  ops/ms

Reopening.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1037#issuecomment-1622806956