The NewGen size is too small.
On my dev environment (CF9.0.1 JVM 1.6.0_24) I ran these JVM args:
java.args=-server -Xms4096m -Xmx4096m -Dsun.io.useCanonCaches=false -
XX:MaxPermSize=192m -XX:+UseParallelGC -XX:NewSize=48m - XX:SurvivorRatio=4 etc
CF became unresponsive without much load, tho I did not see the CPU bound.
I increased the NewGen JVM arg: -XX:NewSize=148m
Now CF kept on responding.
Three JVM things to note:
-the PermGen is fair to say small perhaps you do well to increase those values
eg -XX:PermSize=148m -XX:MaxPermSize=296m
-have seen CF on 64 bit fail to respond when -XBatch is not in the JVM args
-when using low pause XincGC you would do well to have a NewGen collector eg
-XX:+UseParNewGC
HTH, Carl.
> the service stop responding not always at 3am, sometimes it's at 2pm,
> 7pm etc
>
> i check if there was any schedule task starting and no there's
> nothing
>
> here's my jvm settings now :
>
> java.args=-server -Xmx4096m -Xms4096m -Dsun.io.useCanonCaches=false
> -XX:PermSize=64m -XX:+UseParallelGC -XX:NewSize=48m
> -XX:SurvivorRatio=4 -XX:MaxPermSize=192m -Dcoldfusion.
> rootDir={application.home}/../ -Dcoldfusion.libPath={application.
> home}/../lib -Dcoldfusion.classPath={application.home}/../lib/updates,
> {application.home}/../lib,{application.home}/../gateway/lib/,
> {application.home}/../wwwroot/WEB-INF/flex/jars,{application.home}/..
> /wwwroot/WEB-INF/cfform/jars,"C:\\Program Files
> (x86)\\Efflare\\ImageCR3Service\\imagecr3.jar"
>
> is it ok?
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