RFR: 8376164: Optimize AES/ECB/PKCS5Padding implementation using full-message intrinsic stub and parallel RoundKey addition [v2]

Thu Feb 12 12:44:30 UTC 2026

On Thu, 12 Feb 2026 08:28:00 GMT, Shawn M Emery <duke at openjdk.org> wrote:

>> xinyangwu has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
>> 
>>  - Merge branch 'openjdk:master' into aes
>>  - 8376164: Optimize AES/ECB/PKCS5Padding with parallel intrinsic
>
> Benchmarks resulted in 70%+ improvement from baseline when testing 16KB data with 128, 192, and 256 bit keys.

@smemery
Thanks a lot for running the tests and benchmarks! Great to hear that the regression tests passed and that you’re seeing 70%+ improvement.
Really appreciate you taking the time to validate this change. Thanks for the feedback!

-------------

PR Comment: https://git.openjdk.org/jdk/pull/29385#issuecomment-3890731349