> This is a follow-up to PR #20273, which improves performance when the number > of parameters exceeds 20. > > When the number of parameters is large, the possibility of reuse will be > lower, so we can use the static concat method and write the length and coder > directly into the bytecode to solve the performance regression problem.
Shaojin Wen has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains nine commits: - optimize for CompactStrings is off - Merge remote-tracking branch 'upstream/master' into optim_concat_factory_202408 # Conflicts: # src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java - add control flag `reuseThreshold` - Revert "Optimize the construction of MethodType and MethodTypeDesc to reduce memory allocation" This reverts commit 3bed7290f5cb987e86407f698fb0598f19d65628. - Optimize the construction of MethodType and MethodTypeDesc to reduce memory allocation - revert code style - from suggest - Update src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java Co-authored-by: ExE Boss <3889017+exe-b...@users.noreply.github.com> - support staticConcat ------------- Changes: https://git.openjdk.org/jdk/pull/20675/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20675&range=03 Stats: 133 lines in 3 files changed: 82 ins; 2 del; 49 mod Patch: https://git.openjdk.org/jdk/pull/20675.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20675/head:pull/20675 PR: https://git.openjdk.org/jdk/pull/20675
