SDK/RTE 1.4.2.09 for Debian Linux on Intel Itanium Processors Release Notes

-XX:MaxNewSize=<size>

Sets the maximum size of new generation (in bytes). The arguments can be followed

by k, m, or g to specify kilobytes, megabytes, or gigabytes.

-XX:MaxPermSize=<size>

Sets the maximum size of permanent generation (in bytes). The integer argument

specifies bytes. The arguments can be followed by either k, m, or g to specify kilobytes,

megabytes, or gigabytes.

-XX:NewSize=<size>

Sets the default size of new generation (in bytes). The integer argument specifies bytes.

The arguments can be followed by k, m, or g to specify kilobytes, megabytes, or

gigabytes.

-XX:NewSizeThreadIncrease=<sizeInKb>

Sets the additional size added to desired new generation size per non-daemon thread

(in bytes). The integer argument specifies bytes. The arguments can be followed by

either k, m, or g to specify kilobytes, megabytes, or gigabytes.

-XX:PrefetchCopyIntervalInBytes=n

Prefetches n bytes ahead for scavenge copy destination area. The default is 0. The ideal

value may vary depending on the processor.

-XX:+PrefetchMarkSweep

Uses prefetching during full garbage collections. The default is true.

-XX:+PrefetchScanIntervalInBytes=n

Prefetches n bytes ahead for scavenge scan area. The default is 0. The ideal value may

vary depending on the processor.

-XX:+PrefetchScavengeFieldsAhead=n

Prefetches the next n fields of objects during scavenge. The default is 0. The ideal value

may vary depending on the processor.

-XX:+ServerApp

A set of XX options which, when bundled together, make some applications run faster.

For each release, the options, as well as the values, can be different depending upon

the default values of XX options. We recommend that you test to see whether this set

enhances the performance of your application before you use the option in production.

-XX:SurvivorRatio=<ratio>

Ratio of eden/survivor space size. Default for SDK 1.4 is 8. If your new generation heap

is 100MB, the space reserved for objects to survive a GC is 1/2 * (100MB/8), or 6.25MB.