On Fri, 27 Jun 2025 01:04:32 GMT, Shaojin Wen <s...@openjdk.org> wrote:
>> In BufferedReader.readLine and other similar scenarios, we need to use >> StringBuilder.append(char[]) to build the string. >> >> For these scenarios, we can Unsafe.copyMemory instead of the character copy >> of the char-by-char loop to improve the speed. >> >> @RogerRiggs completed the optimization when the encoder is LATIN1 in PR >> #24967. This PR continues to complete the optimization when the encoder is >> UTF16. > > Shaojin Wen has updated the pull request incrementally with one additional > commit since the last revision: > > Update src/java.base/share/classes/java/lang/StringUTF16.java > > Co-authored-by: Chen Liang <li...@openjdk.org> I just noticed there is `LibraryCallKit::inline_string_getCharsU` that is for byte -> char conversion. I wonder if we can slightly update it for char -> byte conversion. ------------- PR Comment: https://git.openjdk.org/jdk/pull/24773#issuecomment-3100796762
