Tune JVMs
Use the following JVM parameters to tune the Java virtual machine.
- Specify any or all of the following generic JVM arguments.These optional command line arguments are passed to the JVM code that starts the appserver process.
-Xquickstart Quickstart -Xverify:none Avoiding class verification -Xnoclassgc Class garbage collection -Xgcthreads Garbage collection threads -Xgcpolicy Garbage collection policy -XX Sun JDK 1.4.1 Generational Garbage Collection -server Sun Java Development Kit 1.4.1 HotSpot JVM warm-up -XX:MaxNewSize=128M Sun Java Development Kit 1.4.1 HotSpot JVM warm-up -XX:MaxPermSize=128M Sun Java Development Kit 1.4.1 HotSpot JVM warm-up -Xnocompactgc Heap compaction -Xinitsh Initial system heap size
- Set the initial heap size.
- Set the maximum heap size.
- Disable just in time (JIT) compiler.
See Also
Using the JVM
Java memory tuning