RFR: 8302113: Improve CRC32 intrinsic with crypto pmull on AArch64

Fri Feb 10 21:21:05 UTC 2023

On Thu, 9 Feb 2023 11:37:16 GMT, Evgeny Astigeevich <eastigeevich at openjdk.org> wrote:

> How was the correctness of the implementation tested? What a microbenchmark did you use? It is not mentioned in the description. There is `test/micro/org/openjdk/bench/java/util/TestCRC32C.java`. Should we add a similar benchmark for CRC32?

The micro benchmark has been added recently. The performance measurement is slightly different, so the threshold is raised to 384 bytes.

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PR: https://git.openjdk.org/jdk/pull/12480