> 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 16 commits: - java doc - Merge remote-tracking branch 'upstream/master' into optim_concat_factory_202408 # Conflicts: # src/java.base/share/classes/java/lang/System.java # src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java - ACC_ABSTRACT - suggestion from @liach - Merge remote-tracking branch 'upstream/master' into optim_concat_factory_202408 # Conflicts: # src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java - reuseThreshold -> cacheThreshold - Revert "optimize for CompactStrings is off" This reverts commit a9fa264afd9fa625ef29357a7ca8559ce9c5fea4. - 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` - ... and 6 more: https://git.openjdk.org/jdk/compare/fbe26293...c4737625 ------------- Changes: https://git.openjdk.org/jdk/pull/20675/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20675&range=08 Stats: 132 lines in 3 files changed: 83 ins; 2 del; 47 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
