RFR: 8322279: Generational ZGC: Use ZFragmentationLimit and ZYoungCompactionLimit as percentage instead of multiples

Mon Dec 18 11:24:57 UTC 2023

Hi all,

This patch fixes `ZHeuristics::significant_heap_overhead` and `ZHeuristics::significant_young_overhead` to use `ZFragmentationLimit` and `ZYoungCompactionLimit` as percentages instead of multiples.

Thanks for the review.

Best Regards,
-- Guoxiong

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Commit messages:
 - Use ZFragmentationLimit and ZYoungCompactionLimit as percentage instead of multiples

Changes: https://git.openjdk.org/jdk/pull/17139/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17139&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8322279
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/17139.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17139/head:pull/17139

PR: https://git.openjdk.org/jdk/pull/17139