Java SE 11 Increases CPU Usage of Client Swing Applications
(Doc ID 2769976.1)
Last updated on APRIL 26, 2021
Applies to:Java SE JDK and JRE - Version 11 and later
Information in this document applies to any platform.
When migrating a small Client Swing application from Java SE 8 HotSpot 32-bit Client VM to Java SE 11 HotSpot 64-bit Server VM, CPU usage increases by a factor of 2-3 at application launch. Similar CPU usage is expected whether the application is run on Java SE 8 or Java SE 11.
Upgrading from Java SE 8 HotSpot 32-bit Client VM to Java SE 11, which provides only a HotSpot 64-bit Server VM. The Client VM was removed from Java SE 11.
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