Hello. I never saw this warning but, on our side we customized the -J-XX:NewRatio to 1 (only way to handle eden/tenured space values with G1 as we discovered) on some applications. This means 50% for eden and 50% for tenured. As default is 2, there is less space for eden and our tests showed that webapps wanted more eden than default value was giving (avoid full GCs) Anyway, tuning the GC is a hard, long but very interesting task and a recommended way to do it is to replay scenarios with various configurations... And even if that config was good for us, there is no guarantee that it will match your needs.
Good luck. Jonathan On 10/30/2012 09:54 PM, resin-interest-requ...@caucho.com wrote: > Send resin-interest mailing list submissions to > email@example.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://maillist.caucho.com/mailman/listinfo/resin-interest > or, via email, send a message with subject or body 'help' to > resin-interest-requ...@caucho.com > > You can reach the person managing the list at > resin-interest-ow...@caucho.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of resin-interest digest..." > > > Today's Topics: > > 1. Managing Tenured Memory in Resin (Keith Fetterman) > 2. Re: Managing Tenured Memory in Resin (Knut Forkalsrud) > 3. Re: Managing Tenured Memory in Resin (Keith Fetterman) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 30 Oct 2012 10:14:05 -0700 > From: Keith Fetterman<kfetter...@go2marine.com> > Subject: [Resin-interest] Managing Tenured Memory in Resin > To: Resin Interest<firstname.lastname@example.org> > Message-ID:<50900add.6030...@go2marine.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Everyone, > > I could use a little help troubleshooting some messages in my > jvm-default.log. I am seeing a lot of the following messages in our > Resin logs. We are currently running Resin 4.0.23 Pro. > >> INFO com.caucho.env.health.HealthService >> MemoryTenuredHealthCheck[WARNING:0.48% free (10.127M free, 2097.152M max, >> 2087.025M used)] > I did a bit of research this morning about adjusting tenured memory > limits, but I didn't find anything specific to adjusting the value. Does > anyone know what property I need to adjust? I currently have the > following Java settings in my resin.xml file: > >> <jvm-arg>-J-server</jvm-arg> >> <jvm-arg>-J-d64</jvm-arg> >> <jvm-arg>-Xms3000M</jvm-arg> >> <jvm-arg>-Xmx3000M</jvm-arg> >> <jvm-arg>-XX:MaxPermSize=250M</jvm-arg> > I could increase the -Xmx property, but I am wondering if there is a > better property to tweak. > > I am also seeing the following warning messages: > >> WARNING com.caucho.health.analysis.AnomalyAnalyzer AnomalyAnalyzer >> JVM|Thread|JVM Blocked Count WARNING >> WARNING com.caucho.health.analysis.AnomalyAnalyzer AnomalyAnalyzer >> JVM|Thread|JVM Runnable Count WARNING > Does anyone have some advice on how to resolve these warnings? I read > the Resin documentation, but I didn't find something specific. > > Thanks for your help > > Keith > _______________________________________________ resin-interest mailing list email@example.com http://maillist.caucho.com/mailman/listinfo/resin-interest