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This discussion is archived
: Sep 18, 2012 9:08 AM by
What's the -XX:ParallelGCThreads option setting dependent on ?
Apr 6, 2012 3:04 AM
, and the logical processors are total cores of physical processors * per cores of a physical processor.
The number of garbage collection threads. The default would be equal to the processor count, which would probably be unnecessarily high on a 32 thread capable system.
in ibm.com site, an article said it should be logical processors(cores), can we find the explanation from sun hotspot jvm source code ?
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Re: What's the -XX:ParallelGCThreads option setting dependent on ?
Sep 18, 2012 9:08 AM
in response to
First of all you must check, if the JVM is running in a virtual or physical environment.
If running in a virtual environment, explicitly set -XX:ParallelGCThreads based on the number of CPUs assigned to the guest OS.