RFR: 8256265: G1: Improve parallelism in regions that failed evacuation [v5]
Thomas Schatzl
tschatzl at openjdk.org
Tue Sep 13 16:00:05 UTC 2022
> Hi all,
>
> can I have reviews on this change that makes the evacuation failure remove forwards phase split the work across threads within regions?
>
> This work is a continuation of PR#7047 from @Hamlin-Li and latest improvements from @albertnetymk in that thread. This is reflected in the first commit, I added a fair amount of changes to fix bugs and streamline the code.
>
> Testing: tier1-8 with G1EvacuationFailureALot enabled, tier1-5 as is
Thomas Schatzl has updated the pull request incrementally with two additional commits since the last revision:
- clear_bitmap_for_region() -> clear_mark_data_for_region()
- ayang review 3
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/9980/files
- new: https://git.openjdk.org/jdk/pull/9980/files/1259cf15..3363fca0
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=9980&range=04
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=9980&range=03-04
Stats: 34 lines in 9 files changed: 8 ins; 8 del; 18 mod
Patch: https://git.openjdk.org/jdk/pull/9980.diff
Fetch: git fetch https://git.openjdk.org/jdk pull/9980/head:pull/9980
PR: https://git.openjdk.org/jdk/pull/9980
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