Laszlo Kishalmi created NETBEANS-3666:
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Summary: Excessive amount of CPU used in multitab UI
Key: NETBEANS-3666
URL: https://issues.apache.org/jira/browse/NETBEANS-3666
Project: NetBeans
Issue Type: Bug
Components: ide - UI
Reporter: Laszlo Kishalmi
It seems there is a performance bottleneck in multitabs implementation.
org.netbeans.core.multitabs.impl.TabDataRenderer.getPreferredWidth(Object) is
being called several times spending considerable amount of time setting the
text on a JLabel over and over:
[https://github.com/apache/netbeans/blob/06b3e677d9ea4dbd9987c8245fe5be776e8245f8/platform/core.multitabs/src/org/netbeans/core/multitabs/impl/TabDataRenderer.java#L144]
The purpose of these calls is to properly measure the width of the rendered
component.
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