<i18n dev> RFR: 8333396: Performance regression of DecimalFormat.format [v4]

[lingjun-cg]

On Tue, 4 Jun 2024 19:44:57 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> lingjun-cg has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8333396: Performance regression of DecimalFormat.format
>
> Also it would be helpful to compare the performance without biased locking in JDK11.

@naotoj The above contains the result of JDK11 with disabled and enabled biased locking. It seems the key is the biased locking. Now our application use DecimalFormat.format() seriously,  the performance is declining when migrate from JDK 11 to JDK 21.  Could you give some suggestion?Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/19513#issuecomment-2162813093