[aarch64-port-dev ] RFR: 8130687: aarch64: add support for hardware crc32c

[Vladimir Kozlov]

Looks good.

Thanks,
Vladimir

On 7/7/15 9:06 AM, Edward Nevill wrote:
> Hi,
>
> http://cr.openjdk.java.net/~enevill/8130687/webrev/hotspot.changeset
>
> adds support for crc32c on aarch64. This has previously been added for Sparc (see https://bugs.openjdk.java.net/browse/JDK-8073583)
>
> Performance measurements shows the throughput goes from ~620MB/s to 2938 MB/s == approx 4.7x performance improvement.
>
> Tested before and after with jtreg hotspot. In both cases
>
> Test results: passed: 867; failed: 3; error: 7
>
> Please review.
>
> Thanks,
> Ed.
>
>