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From Ronald Klop <ronald-mailingl...@base.nl>
Subject Re: 20 Tips for Using Tomcat in Production
Date Wed, 22 Aug 2007 13:20:02 GMT
See the table in this page. On Windows on i586 java always defaults to client runtime. (amd64
or ia-64 are different)
http://java.sun.com/docs/hotspot/gc5.0/ergo5.html

If you can set JAVA_OPTS=-server java starts with it. Print System.getProperties() and you
can see what runtime is used.

Ronald.

On Wed Aug 22 14:15:27 CEST 2007 Tomcat Users List <users@tomcat.apache.org> wrote:
> I am running a 4 core, 8GB, Server 2003 SP1 EE (not R2) machine.
> One JRE: 1.5.0_09
> 
> Karel
> 
> > as far as i know this option is outdated, hence the vm automatically
> > goes into server mode if it detects a server class machine (>=2GB RAM,
> > 2 processors (which also includes ht or dualcore)
> >
> > leon
> >
> > maybe wrong though
> >
> > On 8/22/07, Ben Souther <ben@souther.us> wrote:
> >> It depends on which operating system you're using and how you've
> >> installed Tomcat.
> >> Can you tell us which it is?
> >>
> >>
> >>
> >> On Wed, 2007-08-22 at 07:19, Karel V Sedlacek wrote:
> >> > Thanks for this info,...
> >> >
> >> > How do I implement this tip?
> >> >
> >> > #18. Use the -server JVM option. This enables the server JVM, which
> >> JIT
> >> > compiles bytecode much earlier, and with stronger optimizations.
> >> Startup
> >> > and first calls will be slower due to JIT compilation taking more
> >> time,
> >> > but subsequent ones will be faster.
> >> >
> >> > Karel
> >> >
> >> > > In putting #1 into the JAVA_OPTS (which it appears that is the
> >> > > CATALINA_OPTS
> >> > > for our implementation), it doesn't appear to work, as Tomcat
> >> doesn't
> >> > > restart. It could be our version -- which is currently 5.0.30.
> >> please
> >> > > let
> >> > > me know if there are other steps we need to take here as well.
> >> > >
> >> > > thanks,
> >> > > Kim :-)
> >> > >
> >> > > On 8/21/07, Shane Witbeck <shane@digitalsanctum.com> wrote:
> >> > >>
> >> > >> I thought my latest blog post would be of interest to the people
on
> >> this
> >> > >> list:
> >> > >>
> >> > >>
> >> > >> http://www.digitalsanctum.com/2007/08/18/20-tips-for-using-tomcat-in-production/
> >> > >>
> 

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