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1. Re: Problems in a multiprocessor server
peterj Apr 30, 2007 6:50 PM (in response to escudojaguar)I have the vague recollection that not until the kernel that was part of RHEL 4 did multi-CPU processing become viable. But maybe my recollection is bad. We have been using RHEL 4 and higher on multiprocessor machines with no issues. I am running Fedora 6 on a dual-CPU machine with no issues.
Also, you never said which JVM you are using.
Any possibility you could upgrade to a more current release? -
2. Re: Problems in a multiprocessor server
escudojaguar Apr 30, 2007 7:00 PM (in response to escudojaguar)
I have jdk1.5.0_06 installed and I think the problem is not JBOSS but java, some parameter I need to configure.
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3. Re: Problems in a multiprocessor server
peterj Apr 30, 2007 7:06 PM (in response to escudojaguar)You are correct that the problem is not JBoss-related. The only JVM-related parameter that I can think of that might have anything to do with this is -XX:-UseParallelGC to turn off the parallel garbage collector (given your machine, it is on by default). If that doesn't work, you might have better luck asking your question in a RedHat forum.
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4. Re: Problems in a multiprocessor server
escudojaguar Apr 30, 2007 7:28 PM (in response to escudojaguar)Is there a parameter in java or in JBOSS related with use of cpu?
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5. Re: Problems in a multiprocessor server
peterj May 1, 2007 10:30 AM (in response to escudojaguar)No. By default, the JVM will use all of the available CPUs. Some OSes, and some JVMs, can restrict which CPUs are available to an application (processor affinity).