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From "Suresh babu" <sureshygradu...@gmail.com>
Subject Re: out of memory error
Date Thu, 20 Jul 2006 05:32:03 GMT
Hi,

please set this and send the verbose out put log file.

set JAVA_OPTS=%JAVA_OPTS% -verbosegc -XX:+PrintGCDetails, I will look in to
this.


On 7/19/06, Martin Gainty <mgainty@hotmail.com> wrote:
>
> Good Afternoon Jon-
>
> set Max Mem and Min Mem within jvm.cfg (-Xmx and -Xms options) to the same
> value
> http://java.sun.com/docs/hotspot/PerformanceFAQ.html#8
>
> Exercise caution on playing with stack SS
> 64k is mightly lean
> 512k(default for Sparc) and 256k(default for Intel) usually is plenty
> unless your program has some grossly huge stack allocations
>
> Drivers-
> Also be mindful of synch points for Type 2 (OCI) drivers vs using Type 4
> (thin) drivers..
>
> HTH
> Martin --
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> ----- Original Message -----
> From: "Jon Wingfield" <jon.wingfield@mkodo.com>
> To: "Tomcat Users List" <users@tomcat.apache.org>
> Sent: Wednesday, July 19, 2006 12:12 PM
> Subject: Re: out of memory error
>
>
> > This may be of help (emphasis on may):
> >
> > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4765019
> >
> > Has a bit about tuning Xss for a high number of threads.
> >
> > MW Janssen wrote:
> >> Hi,
> >>
> >> These are my parameters:
> >>
> >> I have Xmx1024m and Xms1024m as well for the heap size memory. I dont
> set
> >> Xss so I presume I use the default value.
> >> My Operating System:
> >>
> >> OS Name: Windows 2003 OS Version: 5.2 Total RAM: 2.00Gb Free RAM:
> 2.00Gb
> >> Committed JVM memory: 1.02Gb Total swap: 4.00Gb Free swap: 3.87Gb (from
> >> lambdaprobe)
> >>
> >> Maarten
> >>
> >> -----Oorspronkelijk bericht-----
> >> Van: David Tonhofer [mailto:d.tonhofer@m-plify.com]
> >> Verzonden: woensdag 19 juli 2006 16:57
> >> Aan: Tomcat Users List
> >> Onderwerp: Re: out of memory error
> >>
> >>
> >> MW Janssen wrote:
> >>
> >> "java.lang.OutOfMemoryError: unable to create new native thread"
> >>
> >>
> >> Are you it isn't just the heap and/or stack that's too small? Try
> starting
> >> the Jvm with one of the extended options line "-Xss500k" "-Xmx100m" (if
> it
> >> is the Sun
> >> JVM)
> >>
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> >
> >
> >
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> >




-- 
Suresh Babu,
Software Engineer,
Computer Associates-India

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