RFR: 8199407: Skip Rebuild Remset Phase if there are no rebuild candidates [v2]

[Ivan Walulya]

On Fri, 16 Apr 2021 13:57:30 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Ivan Walulya has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains eight additional commits since the last revision:
>> 
>>  - Fix issues raised in Thomas review, and add test
>>  - Merge remote-tracking branch 'upstream/master' into JDK-8199407
>>  - remove trailing white space
>>  - Merge branch 'master' into JDK-8199407
>>  - variable name refactor
>>  - variable name refactor
>>  - skip iterations that depend on total_selected_for_rebuild
>>  - skip the rebuild remembered set phase if remark did not select any regions for rebuilding
>
> Lgtm after looking at some logs and playing with some log options. Sorry for the confusion.

Thanks @tschatzl for the review

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PR: https://git.openjdk.java.net/jdk/pull/3434