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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 23
Affects Version/s: 21, 22, repo-lilliput-17, repo-lilliput-21, repo-lilliput
Component/s: hotspot
Labels:

Subcomponent:
runtime
Resolved In Build:
b06

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8332552	21.0.5-oracle	Fairoz Matte	P4	Resolved	Fixed	b01
JDK-8333337	21.0.5	Martin Doerr	P4	Resolved	Fixed	b01

LM_LIGHTWEIGHT only uses the lock bits for its locking. This leaves the hashCode bits free when a monitor is not inflated. So instead of inflating when installing the hashCode on a fast locked object it can simply use the hashCode bits in the markWord.

backported by

JDK-8332552 Avoid inflating monitors when installing hash codes for LM_LIGHTWEIGHT

Resolved

JDK-8333337 Avoid inflating monitors when installing hash codes for LM_LIGHTWEIGHT

Resolved

links to

Commit openjdk/jdk21u-dev/55e97ce0

Commit openjdk/jdk/65a06727

Commit openjdk/lilliput-jdk17u/11a3cf92

Commit openjdk/lilliput-jdk21u/95218a6a

Review openjdk/jdk21u-dev/618

Review openjdk/jdk/16603

Review openjdk/lilliput-jdk17u/80

Review openjdk/lilliput-jdk21u/21

(5 links to)

Assignee:: Axel Boldt-Christmas

Reporter:: Axel Boldt-Christmas

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2023-11-08 23:41

Updated:: 2024-05-31 02:05

Resolved:: 2024-01-12 06:37

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