RFR: 8309130: x86_64 AVX512 intrinsics for Arrays.sort methods (int, long, float and double arrays) [v22]

Thu Aug 17 17:27:29 UTC 2023

On Thu, 17 Aug 2023 16:22:54 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> Improvements are nice but it would not pay off if you have big regressions. I can accept 0.9x but 0.4x - 0.8x regressions should be investigated and implementation adjusted to avoid them.

Hi Vladimir,

Thank you for the suggestion! 
Currently, AVX512sort is doing well for Random, Repeated and Shuffle patterns of input data. The regressions are observed for Staggered (Wave) pattern of input data. 
Will investigate the regressions and adjust the implementations to address them.

Thanks,
Vamsi

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PR Comment: https://git.openjdk.org/jdk/pull/14227#issuecomment-1682679067