RFR: 8310949: RISC-V: Initialize UseUnalignedAccesses [v5]

[Ilya Gavrilin]

On Wed, 28 Jun 2023 09:20:13 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

>> 8310949: RISC-V: Initialize UseUnalignedAccesses
>
> Ludovic Henry has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Results on T-Head board
-XX:-UseUnalignedAccesses :

Benchmark                                       (size)   Mode  Cnt     Score   Error   Units
TestUseUnalignedAccesses.testPutIntUnaligned       100  thrpt   15  1907.338 ± 6.943  ops/ms
TestUseUnalignedAccesses.testPutLongUnaligned      100  thrpt   15  1200.164 ± 2.577  ops/ms
TestUseUnalignedAccesses.testPutShortUnaligned     100  thrpt   15  2005.762 ± 8.693  ops/ms


XX:+UseUnalignedAccesses:

Benchmark                                       (size)   Mode  Cnt     Score    Error   Units
TestUseUnalignedAccesses.testPutIntUnaligned       100  thrpt   15  2997.842 ± 11.228  ops/ms
TestUseUnalignedAccesses.testPutLongUnaligned      100  thrpt   15  3058.505 ± 11.970  ops/ms
TestUseUnalignedAccesses.testPutShortUnaligned     100  thrpt   15  3157.681 ± 39.818  ops/ms

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PR Comment: https://git.openjdk.org/jdk/pull/14676#issuecomment-1634377606