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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Tomcat 6.0.26 64 bits = CPU 100%
Date Tue, 14 Sep 2010 21:00:53 GMT
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Pid,

On 9/14/2010 4:21 PM, Pid wrote:
> On 14/09/2010 20:42, Caldarale, Charles R wrote:
>>> From: Vincent DELHOMMOIS [mailto:vincdel@free.fr] 
>>> Subject: Tomcat 6.0.26 64 bits = CPU 100%
>>
>>> On these days, the CPU are stuck at 100% and doesn't 
>>> decrease. Do you have any idea ?
>>
>> I'm tempted to just answer "yes", and let it go at that.
>>
>> However, let's try a bit more detail:
>>
>> 1) What do repeated thread dumps show?
>>
>> 2) What's in the logs?
>>
>> 3) What *exact* JVM version are you running on?
>>
>> 4) Are you using APR?
> 
> In addition:
> 
> 5) Is the 'virtual machine' a guest operating system or a JVM instance?
> 
> 6) How many virtual machines, and how much RAM assigned to each?

...and if you're talking about JVMs running on virtualized hardware
(like VMWare, Microsoft Virtual Server, etc.), then please tell us what
kind of hardware virtualization you are using (what the name of the
software is) and if true hardware virtualization is being used
(AMD-v/VT-x/etc.).

- -chris
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