Hello,

Hope these help (personally I read the last link first, some time ago, just
to have some clue on the parameters used in jmeter script, as they come out
of the box: .bat for windows or jmeter on linux). However they still should
be useful.

http://java.sun.com/performance/reference/whitepapers/tuning.html
http://java.sun.com/docs/hotspot/gc1.4.2/faq.html
http://fedora.fiz-karlsruhe.de/docs/Wiki.jsp?page=Java%20Heap%20%26%20GC%20Tuning
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

--Adrian S

On Fri, Nov 26, 2010 at 8:54 AM, Deepak Goel <[email protected]> wrote:

> Hey
>
> Namaskara~Nalama~Guten Tag
>
> Some thoughts:
>
> 1. Looks like you are running your system on a very low end configuration
> hardware. Other than that for most systems, 1GB max and min heap size, new
> heap size : 256MB,  a parallel garbage collector.
>
> 2. Also there are other parameters for GC which the tuning guide of the
> particular vendor should help you.
>
> 3. Compatibility of the JVM with the OS vendor and all the latest patch
> updates.
>
> 4. It could be also possible your application is quite complex and the GC
> has to traverse quite a few network points to free up objects.
>
> 5. Are there any external systems which are connected to your JVM?
>
> 6. How about having multiple servers if possible? (Cost is a factor
> thought)
>
> Deepak
>   --
> Keigu
>
> Deepak
> +91-9765089593
> [email protected]
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>
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>
>
>
> On Fri, Nov 26, 2010 at 12:04 PM, Deepak Shetty <[email protected]> wrote:
>
> > Hi
> >
> > Usually the Heap Size has the biggest impact - but too high a value gives
> > you a larger pause.
> > However absent knowledge of the application(and load and hardware) no
> > recommendation can be made other than the generic ones which Google can
> > tell
> > you
> >
> > regards
> > deepak
> >
> > On Thu, Nov 25, 2010 at 10:27 PM, vineeta vashistha <
> > [email protected]> wrote:
> >
> > > No I am looking for JVM tuning parameters for application server
> (Jboss)
> > >
> > > On Fri, Nov 26, 2010 at 11:51 AM, Deepak Shetty <[email protected]>
> > wrote:
> > >
> > > > Hi
> > > >
> > > > im assuming you mean your jmeter client is suffering?
> > > >
> > > > Whats your heap size? How many threads are you running on JMeter?
> > > >
> > > > Reduce memory consumption by
> > > >
> > >
> >
> http://jakarta.apache.org/jmeter/usermanual/best-practices.html#lean_mean
> > > >
> > > > regards
> > > > deepak
> > > >
> > > > On Thu, Nov 25, 2010 at 10:18 PM, vineeta vashistha <
> > > > [email protected]> wrote:
> > > >
> > > > > I am using jdk.1.6
> > > > > My System is getting paused for 5 minutes at the time of GC.
> > > > >
> > > > > Please suggest some settings so that system doesn't pause for such
> a
> > > long
> > > > > duration.
> > > > >
> > > > > Regards,
> > > > > Vineeta
> > > > >
> > > >
> > >
> >
>

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