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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 23
Affects Version/s: 20
Component/s: hotspot
Labels:

Subcomponent:
gc
Resolved In Build:
b15

Currently HeapRegion "owns" the top_at_mark_start (TAMS) member, it is placed within that class.

As such uses have bled all over the place (particular in log messages).

However TAMS is a temporary value only needed for marking - so similar to current marked live bytes it should be managed there.

is blocked by

JDK-8210708 Use single mark bitmap in G1

Resolved

JDK-8290357 Drop HeapRegion::marked_bytes()

Resolved

JDK-8290814 Hide G1RootRegions behind G1ConcurrentMark

Resolved

relates to

JDK-7127707 G1: Checkpoint heap regions at start of concurrent marking to ignore heap expansions

Closed

JDK-8328879 G1: Some gtests modify global state crashing the JVM during GC after JDK-8289822

Resolved

JDK-8290366 Remove unused during_conc_mark parameter in HeapRegion::note_self_forwarding_removal_start

Resolved

links to

Commit openjdk/jdk/f1c69cca

Review openjdk/jdk/18150

(1 relates to, 2 links to)

Assignee:: Thomas Schatzl
Reporter:: Thomas Schatzl
Votes:: 0 Vote for this issue
Watchers:: 4 Start watching this issue

Created:: 2022-07-06 02:55
Updated:: 2024-03-27 07:04
Resolved:: 2024-03-19 03:32

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