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[Java SE] GC is Extremely Slow Due to System Swap Activity (Doc ID 1262554.1)

Last updated on NOVEMBER 01, 2022

Applies to:

Java Platform, Standard Edition - Version 1.4.2 and later
Information in this document applies to any platform.

Symptoms

Garbage Collection (GC) takes a very long time to complete.  During this time any application threads are all paused and the application seems to hang.  If the Java option -XX:+PrintGCDetails is used to report the GC activity, a very long "real" time will be reported, while "user" and "sys" times are much smaller:

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution

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