RFR: 8309960: ParallelGC young collections very slow in DelayInducer

[Albert Mingkun Yang]

8309960: ParallelGC young collections very slow in DelayInducer

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Commit messages:
 - Backport 5f3613e0604f7da252421e08fe7ded7406538caa

Changes: https://git.openjdk.org/jdk21/pull/22/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=22&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309960
  Stats: 8 lines in 1 file changed: 5 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21/pull/22.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/22/head:pull/22

PR: https://git.openjdk.org/jdk21/pull/22