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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 24
Affects Version/s: 22
Component/s: hotspot
Labels:

Subcomponent:
runtime
Resolved In Build:
b05
OS:

linux

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8354579	21.0.8	Andreas Steiner	P4	Resolved	Fixed	b01

Make System.map and System.dump_map drastically more useful by adding:
- the actual memory used per mapping (RSS)
- the actual page size of the mapping
- THP state (used, advised, eligible, forbidden)
- the commit state
- swap state

Also, provide a summary for:
- total RSS
- total size of hugetlb memory
- how much memory uses THPs
- how much memory had been swapped out
- how much memory was committed

backported by

JDK-8354579 Extend printing for System.map

Resolved

causes

JDK-8335643 serviceability/dcmd/vm tests fail for ZGC after JDK-8322475

Resolved

JDK-8335710 serviceability/dcmd/vm/SystemDumpMapTest.java and SystemMapTest.java fail on Linux Alpine after 8322475

Resolved

relates to

JDK-8366780 Enhance ProcSmapsParser and Printer to handle THPeligible field

Resolved

JDK-8318636 Add jcmd to print annotated process memory map

Resolved

JDK-8334026 Provide a diagnostic PrintMemoryMapAtExit switch on Linux

Resolved

links to

Commit openjdk/jdk/8aaec37a

Commit(master) openjdk/jdk21u-dev/fe1a91c4

Review openjdk/jdk/17158

Review(master) openjdk/jdk21u-dev/1619

(1 relates to, 4 links to)

Assignee:: Thomas Stuefe

Reporter:: Thomas Stuefe

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2023-12-19 07:45

Updated:: 2025-09-03 02:52

Resolved:: 2024-07-03 09:09

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