Integrated: 8333226: Regressions 2-3% in Compress ZGC after 8331253

[Vladimir Kozlov]

On Mon, 3 Jun 2024 17:59:06 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> Revert [JDK-8331253](https://bugs.openjdk.org/browse/JDK-8331253) changes [#3383ad63](https://git.openjdk.org/jdk/commit/3383ad6397d5a2d8fb232ffd3e29a54e0b37b686) to avoid regression.
> And convert `nmethod::_skipped_instructions_size field` field to `int` type to address original JDK-8331253 issue.
> 
> Tested tier1-3,stress,xcomp and performance.
> 
> Note: You may see some regressions, but performance returns to state before  JDK-8331253. I may look again in a future on changes I did to calculated skipped instructions.

This pull request has now been integrated.

Changeset: dce97031
Author:    Vladimir Kozlov <kvn at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/dce97031555dcf689fecda16e444e7e8e9d5b270
Stats:     43 lines in 9 files changed: 6 ins; 24 del; 13 mod

8333226: Regressions 2-3% in Compress ZGC after 8331253

Reviewed-by: chagedorn, thartmann

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PR: https://git.openjdk.org/jdk/pull/19531