> 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 12 commits: - 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` - 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 - ... and 2 more: https://git.openjdk.org/jdk/compare/8fb8cd85...5c12e337 ------------- Changes: https://git.openjdk.org/jdk/pull/20675/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20675&range=05 Stats: 130 lines in 3 files changed: 81 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
