> 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: Microbenchmark java.lang.StringBuilders is modified to not re-use existing StringBuilders, from @RogerRiggs ------------- Changes: - all: https://git.openjdk.org/jdk/pull/24773/files - new: https://git.openjdk.org/jdk/pull/24773/files/2a45cfc1..18463718 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=24773&range=06 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24773&range=05-06 Stats: 4 lines in 1 file changed: 0 ins; 2 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/24773.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24773/head:pull/24773 PR: https://git.openjdk.org/jdk/pull/24773
