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http://issues.apache.org/bugzilla/show_bug.cgi?id=42742 ------- Additional Comments From [EMAIL PROTECTED] 2007-07-16 06:57 ------- Hi Steve, Thanks, I can now repeat the problem with the following build file: <project name="e" default="run"> <property name="ac" location="${user.home}/apps/ant-contrib/ant-contrib-1.0b3.jar"/> <target name="run"> <typedef resource="net/sf/antcontrib/antlib.xml" classpath="${ac}"/> <for begin="1" end="1000" param="p"> <sequential> <antcall target="define"/> <echo>@{p}</echo> </sequential> </for> </target> <target name="define"> <typedef resource="net/sf/antcontrib/antlib.xml" classpath="${ac}"/> </target> </project> If I set ANT_OPTS to: export ANT_OPTS="-XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:SurvivorRatio=2 The build completes - but painfully slowly, (after ~ 300 iterations the slowdown is very noticable), the time reported for the build is ~30 minutes. If I set ANT_OPTS to: export ANT_OPTS="-XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:SurvivorRatio=2 -XX:MaxPermSize=8m -XX:PermSize=8m" The build completes relatively quickly (~ 2 1/2 minutes) (see : http://developers.sun.com/mobility/midp/articles/garbagecollection2/#3.3 for use and description of GC flags) I conclude that for this build file, the problem is not ant, but it is the GC in java and its treatment of classes. It may be useful to add a check in <typedef> to see if the same typedef has been done before - this may cause other problems (the contents of the jars made have changed - adding new classes or antlibs definitions). As Stephane does, I also normally fork build files to avoid similar (and other) problems. I use the following macro: <macrodef name="sub"> <attribute name="dir"/> <attribute name="target"/> <sequential> <exec executable="bash" dir="@{dir}" failonerror="yes"> <arg value="-c"/> <arg value="ant -emacs @{target}"/> </exec> </sequential> </macrodef> -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
