Java Memory Management on HP-UX

page 142/8/2005
(c) Copyright Hewlett Packard Company, 2005
java -XheapInitialSizes
Defaults when no options are specified-
NewRatio: 3
SurvivorRatio: 8
MaxTenuringThreshold: 32
Survivor size: 589824
Eden size: 5177344
New Size reserved: 22347776 initial: 6356992
Old Size reserved: 44761088 initial: 12779520
Perm Size reserved: 67108864 initial: 1048576
New size will default to around 1/3
rd
the total heap size if –Xmn
is not specified. –Xmn is an alias for –XX:NewSize. If this value
is higher than MaxNewSize, MaxNewSize will be set to this value
as well. New generation will be resized to 1/3
rd
the total heap as
the heap grows from –Xms to –Xmx.