[olug] Monitoring Memory Usage

[Mr Scsi]

I am also fighting with this same problem. Your one up on me as your using
1.5.
Some options that are only available as of 1.5:

jstat, jconsole, jmap, jinfo

All these are contained in the JDK 1.5:
http://java.sun.com/j2se/1.5.0/docs/tooldocs/index.html#manage


A quote I was given from one of the sun developers:

"Better still, what not start your application with -
Dcom.sun.management.jmxremote and then monitor the memory usage with
jconsole:

http://java.sun.com/j2se/1.5.0/docs/guide/management/jconsole.html"


Hope that helps -

On 10/5/07, Travis Owens <openbook1441 at gmail.com> wrote:
>
> Hey all...
>
> Got a technical question here... I've done a bunch of googling on
> this, and have tested several different ways of doing this, but I'm
> getting wildly differing results, so I figured to see if anyone has
> any ideas....
>
> I'm using standard shell utilities and scripts to monitor the memory
> usage of a specific process and report it via Big Brother.
>
> For this particular process I'm interested in, it's a java process. (I
> am just the admin here, I am not the developer, so I don't have access
> to the code, nor do I know any specifics they implemented for VM
> allocation.)
>
> The process is running on a 2.4.X series machine, so no
> /proc/<pid>/smaps definitions...
> It's also using jdk1.5.0_07
>
> Here's the various ways I've played with so far:
>
> ps -elfwww | grep <name>
> ps  aux | grep <name>
> ps  avx | grep <name>
> top -p <pid> -b -n 1
> pmap -d <pid>
>
> Just trying to get a handle on the most accurate way to define a
> specific process's memory footprint. What is in Physical RAM,
> buffers/cache, swap, an independent pagefile?
>
> Anyone?
>
> TIA!
>
> --
> Travis Owens
>
> Let every nation know, whether it wishes us well or ill, that we shall
> pay any price, bear any burden, meet any hardship, support any friend,
> oppose any foe, to assure the survival and the success of liberty.
> This much we pledge and more.   -- John F. Kennedy, inaugural speech,
> January 20, 1961
> _______________________________________________
> OLUG mailing list
> OLUG at olug.org
> http://lists.olug.org/mailman/listinfo/olug
>