On Tue, 12 Sep 2023 23:10:43 GMT, Claes Redestad <redes...@openjdk.org> wrote:
>>> Have you considered potentially more generalizable optimizations to >>> `DateTimeFormatter.ISO_INSTANT.format(this)` here? >>> >>> Hand-rolling a fixed-length buffer, skipping the `StringBuilder` .. >>> understandably this can have a performance edge, but perhaps a >>> `DateTimeFormatter` like `ISO_INSTANT` can be optimized to get closer to >>> whatever speed-up this gets you - with broader implications. >> >> I submitted an optimization for the commonly used format of >> DateTimeFormatter::format > > Do you have a link to that PR? Is there an RFE filed for it? Optimization of DateTimeFormatter::format should be another PR, I created a [branche](https://github.com/wenshao/jdk/tree/optim_for_datetime_format) but the work is unfinished. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/15658#discussion_r1323870413
