Hi guys
This is what I use in my command line with really improved performance:
start javaw -XX:ParallelGCThreads=2 -XX:MaxNewSize=24m -XX:NewSize=24m
-XX:SurvivorRatio=128
-XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:MaxTenuringThreshold=0
-XX:CMSInitiatingOccupancyFraction=60
-Dswing.defaultlaf=javax.swing.plaf.metal.MetalLookAndFeel
-Dlog4j.configuration=file:./log4j.xml -Xms1024M -Xmx1024M -cp %CLASSPATH%
com.vividsolutions.jump.workbench.JUMPWorkbench -i18n en -properties
workbench-properties.xml -plug-in-directory %LIB%/ext
Note the -XX:ParallelGCThreads=2 switch
everyone with an hyperthreading or
dual-core processor should use this
;-)
Theres also some trickery around the garbage collector policies.
Best regards,
Pedro.
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of erwan
bocher
Sent: domingo, 25 de Março de 2007 10:57
To: List for discussion of JPP development and use.
Subject: Re: [JPP-Devel] speed up of rendering
Hi,
One remark about memory consumed in OJ. When I load a shapefile with 36 580
polygons (size 18 mb) the memory using by my java virtual is up to 202 mb.
If I minimize my OpenJUMP windows and I open it again the JVM display : 85
mb.
R1.
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