RFR: 8225409: Investigate removal of the Hot Card Cache [v2]

Thu Feb 9 10:51:31 UTC 2023

> Mostly straightforward removing G1 HotCardCache, as no performance benefit is observed for various benchmarks (specjbb, specjvm, dacapo, etc).
> 
> Test: tier1-6

Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:

 - merge
 - g1-hcc

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Changes: https://git.openjdk.org/jdk/pull/12452/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12452&range=01
  Stats: 1259 lines in 34 files changed: 50 ins; 1176 del; 33 mod
  Patch: https://git.openjdk.org/jdk/pull/12452.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12452/head:pull/12452

PR: https://git.openjdk.org/jdk/pull/12452