[JDK-8040006] Merge "Other" time parallel phases into a single - Java Bug System

Type: Enhancement
Resolution: Duplicate
Priority: P4
Fix Version/s: tbd
Affects Version/s: 8u40, 9
Component/s: hotspot
Labels:
- gc-g1
- gc-performance

Subcomponent:
gc

Recently a few parts of the "Other" time (and actually there are phases outside "Other" that are already parallelized) were parallelized, each using its own gangtask.

To avoid the constant startup/termination synchronization of the gang threads, try to merge the work into a single (or an appropriate amount of) gangs.

I added a few CRs that added gang tasks that could be considered for that work.

duplicates

JDK-8214237 Join parallel phases post evacuation

Resolved

relates to

JDK-8057000 Increase parallelism in String deduplication fixup

Closed

JDK-8019342 G1: High "Other" time most likely due to card redirtying

Resolved

JDK-8029075 String deduplication in G1

Resolved

JDK-8034842 Parallelize the Free CSet phase in G1

Resolved

JDK-8037956 Merge String Deduplication work with String/Symbol table work

Closed

JDK-8078117 Refactor enqueue_discovered_references() and redirty_logged_cards() to share the same work gang.

Closed

(2 relates to)

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Type: Enhancement
Resolution: Duplicate
Priority: P4
Fix Version/s: tbd
Affects Version/s: 8u40, 9
Component/s: hotspot
Labels:
- gc-g1
- gc-performance

Subcomponent:
gc