[jdk24] RFR: 8345405: Add JMH showing the regression in 8341649

[Eric Caspole]

8345405: Add JMH showing the regression in 8341649

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Commit messages:
 - Backport 35c00532a1dd2a6df5fc3d5173ca692517675d38

Changes: https://git.openjdk.org/jdk/pull/22686/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22686&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345405
  Stats: 175 lines in 1 file changed: 175 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22686.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22686/head:pull/22686

PR: https://git.openjdk.org/jdk/pull/22686