On Fri, 29 Sep 2023 20:03:09 GMT, 温绍锦 <d...@openjdk.org> wrote:

>> In the improvement of @cl4es PR #15591, the advantages of non-lookup-table 
>> were discussed.
>> 
>> But if the input is byte[], using lookup table can improve performance.
>> 
>> For HexFormat#formatHex(Appendable, byte[]) and HexFormat#formatHex(byte[]), 
>> If the length of byte[] is larger, the performance of table lookup will be 
>> improved more obviously.
>
> 温绍锦 has updated the pull request incrementally with one additional commit 
> since the last revision:
> 
>   Update full name

FWIW I'll not review or sponsor any PRs that use `ByteArrayLittleEndian` for 
trivial `byte[]` writes until there's been a thorough analysis of why this 
helps and shown that JITs can't be expected to generate code that is as optimal.

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PR Comment: https://git.openjdk.org/jdk/pull/15768#issuecomment-1750762716

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