AWT text measuring implementations

The Java 6 (J2SE) implementation of AttributedString, TextLayout, and LineBre开发者_运维百科akMeasurer classes use anti-aliasing properties and fractional math for metrics calculations. This causes a severe performance penalty.

What suggestions (for Cent OS Linux) do you have to increase performance? Such as:

• A faster JVM (JDK 1.7, Oracle's JRockit, IBM)
• A different AWT implementation (any?)

Thank you!

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Does the java.awt.FontMetrics class give any better performance? It may still be used by the classes you've mentioned, but it's a pre-Java 6 implementation at least.