id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
2484	poor performance with relation editor dialog	elyk	team	"After opening the relation editor dialog a few times, performance takes a nosedive.  In particular, performance seems fine until a certain point whereafter it takes a long time to draw any dialog box on the screen.  Opening the relation editor dialog a few times triggers the behavior.

I've tried running `top` to investigate exactly when this problem happens.  Opening the relation editor dialog will cause the virtual memory size (VIRT column) to increase by about 4m or 5m each time I open it.  If I run `java -Xmx768m -Dsun.java2d.opengl=true -jar ./josm-latest.jar` then the performance tanks when the VIRT column reaches about 1024m.

I've tried changing the -Xmx option to 512m and 1024m.  The problem happens when the VIRT column gets to about 768m and 1280m, respectively.  In all cases, that's about 256m above the value I give for -Xmx.

What can be done about this?  Can the relation dialog be improved to not gobble up 4 or 5 megabytes of virtual memory every time it is opened?

{{{
$ java -version
java version ""1.6.0_06""
Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
Java HotSpot(TM) Client VM (build 10.0-b22, mixed mode, sharing)
}}}
"	defect	closed	major		Core	latest	worksforme