[jdk20] RFR: 8298217: Regressions 30-110% in SwingMark on MacOS, more so on aarch64 [v2]

[Ajit Ghaisas]

> The nature of data plays an important part in rendering performance as noted in the comment made on [JDK-8288948](https://bugs.openjdk.org/browse/JDK-8288948) -
> https://bugs.openjdk.org/browse/JDK-8288948?focusedCommentId=14504772&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14504772
> 
> Although the fix [JDK-8288948](https://bugs.openjdk.org/browse/JDK-8288948) is logical, it seems to have an adverse impact on SwingMark test numbers especially on aarch64.
> 
> The SwingMark tests closely depict the UI operations in real-world applications as compared to the J2DBench and RenderPerfTest tests. Hence, it is decided to revert the regression causing commits [JDK-8288948](https://bugs.openjdk.org/browse/JDK-8288948) (and dependent [JDK-8291266](https://bugs.openjdk.org/browse/JDK-8291266)).
> 
> Metal rendering pipeline performance numbers before and after this PR are attached to the JBS.
> 
> Note : The fix for [JDK-8291266](https://bugs.openjdk.org/browse/JDK-8291266) has a good regression test - DrawPrimitivesTest.java. It passes even after reverting the said changes. This test will be added back once this PR is committed.

Ajit Ghaisas has updated the pull request incrementally with one additional commit since the last revision:

  Restore file modification year

-------------

Changes:
  - all: https://git.openjdk.org/jdk20/pull/47/files
  - new: https://git.openjdk.org/jdk20/pull/47/files/da8c8f50..5a4be5bc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk20&pr=47&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk20&pr=47&range=00-01

  Stats: 4 lines in 4 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk20/pull/47.diff
  Fetch: git fetch https://git.openjdk.org/jdk20 pull/47/head:pull/47

PR: https://git.openjdk.org/jdk20/pull/47