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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 22
Affects Version/s: 11, 17, 21, 22
Component/s: hotspot
Labels:

Subcomponent:
svc-agent
Resolved In Build:
b15

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8316963	21.0.2	Aleksey Shipilev	P4	Resolved	Fixed	b02
JDK-8316962	17.0.10	Aleksey Shipilev	P4	Resolved	Fixed	b01
JDK-8317256	11.0.22	Aleksey Shipilev	P4	Resolved	Fixed	b01

serviceability/sa/TestJmapCoreMetaspace.java runs in hotspot:tier2, and takes about 330 seconds out of 670 seconds of the entire run on x86_64 fastdebug. The tier2 completion usually waits on it.

Profiling shows we are spending time during classloading, checking dependencies. Since we load lots of classes, we do it many times, and each time the cost grows linearly to the number of classes. Some other tests that target metaspace explicitly disable `VerifyDependencies` to avoid this.

backported by

JDK-8316962 serviceability/sa/TestJmapCoreMetaspace.java should run with -XX:-VerifyDependencies

Resolved

JDK-8316963 serviceability/sa/TestJmapCoreMetaspace.java should run with -XX:-VerifyDependencies

Resolved

JDK-8317256 serviceability/sa/TestJmapCoreMetaspace.java should run with -XX:-VerifyDependencies

Resolved

links to

Commit openjdk/jdk11u-dev/166adaac

Commit openjdk/jdk17u-dev/52962e4a

Commit openjdk/jdk21u/3130e038

Commit openjdk/jdk/877731d2

Review openjdk/jdk11u-dev/2150

Review openjdk/jdk11u/85

Review openjdk/jdk17u-dev/1786

Review openjdk/jdk21u/202

Review openjdk/jdk/15631

(7 links to)

Assignee:: Roy Soumadipta

Reporter:: Aleksey Shipilev

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Created:: 2023-09-06 03:42

Updated:: 2023-09-28 08:22

Resolved:: 2023-09-11 09:36

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