On Tue, 12 Sep 2023 13:10:42 GMT, 温绍锦 <d...@openjdk.org> wrote:
>> Of course, the optimization of DateTimeFormatter is more general, and we can >> spend time doing it later. The format of toString is fixed, we can not use >> DateTimeFormatter. > >> 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? ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/15658#discussion_r1323705970
