On Tue, 4 Feb 2025 13:39:28 GMT, Shaojin Wen <s...@openjdk.org> wrote:
>> By using the Class File API to dynamically generate a >> CompositePrinterParser, and defining DateTimePrinterParser[] printerParsers >> as a specific field, C2 can do TypeProfile optimization. >> >> Since the CompositePrinterParser is generated based on the pattern, we can >> make the following optimizations: >> >> 1. For example, for the parse and print of >> Month/DayOfMonth/Hour/Minute/Second with a fixed length of 2, do targeted >> parse and print optimization. >> >> 2. Parse uses LocalDate/LocalTime/LocalDateTime/OffsetDateTime for >> TemporalQuery to avoid the overhead of constructing DateTimeParseContext. >> >> These optimizations can significantly improve performance, with more than >> 100% performance improvement in many scenarios. > > Shaojin Wen has updated the pull request incrementally with one additional > commit since the last revision: > > more use getInt & add more test Keep it alive. ------------- PR Comment: https://git.openjdk.org/jdk/pull/23384#issuecomment-2708922153
