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SWAP SPACE USED BY JVM PROCESS

Posted on 2010-09-23
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what is swap space .. how is it used by the JVM processes in JBOSS
how to calculate it.  how to know ... how much heap memory is used and how much virtual memory is used?
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Question by:damodar4u
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LVL 26

Expert Comment

by:jar3817
ID: 33745971
Swap space is basically a partition of the drive used for virtual memory. It usually gets used when the system is out of physical memory. To view all that info type this command:

# cat /proc/meminfo
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Author Comment

by:damodar4u
ID: 33769107
i need more info .. of how it works ... if i have a jvm and if i assign min size = 128 MB and Max Size = 512 MB and a Swap sapce space of 2 GB .. can you someone explain me how it works by taking theabove mentioned figures ?
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Accepted Solution

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jar3817 earned 2000 total points
ID: 33769882
You have no control over it, swapping is handled by the kernel. If you have a JVM with min 128MB and max 512MB, your talking about memory. If the server runs out of available memory, it's going to start swapping, but you'll have no control over which processes it does that to.

http://www.linux.com/news/software/applications/8208-all-about-linux-swap-space
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Author Closing Comment

by:damodar4u
ID: 33770428
thjx for info
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