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тАО02-02-2004 03:49 AM
тАО02-02-2004 03:49 AM
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 1703936 68988 1634948 4% 0 - 1 /dev/vg00/lvol2
reserve - 176504 -176504
memory 780648 765276 15372 98%
This is the results of swapinfo. Needless to say we are having system issues. I am unable to identify any one process that is utilizing all the memory. How can I determine if this system is just plain underpowered memory wise?
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тАО02-02-2004 03:59 AM
тАО02-02-2004 03:59 AM
SolutionYou have 68 MB sitting on swap which means the system did page out.
Run vmstat and look at 'po' column. If you see a doule digit or more number continuously, then you are experiencing memory issues.
One parameter that you can check immediately is 'dbc_max_pct'. You wouldn't need more than 700-800 MB on 11i and 300-400MB on 11.0. If the above parameter is set to 50% (default), then you may want to consider lowering it.
Also, keep track of the size of each of the processes and see if it is not increasing over the time. If so, then there is a good chance that the process has a memory leak. Run the following command at regular intervals and see if the first column is increasing for any of the processes over the time
UNIX95= ps -e -o 'vsz pid args' |sort -n > /tmp/ps.out
-Sri
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тАО02-02-2004 04:00 AM
тАО02-02-2004 04:00 AM
Re: Memory Issues
swapinfo -tam will give you more data.
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тАО02-02-2004 04:03 AM
тАО02-02-2004 04:03 AM
Re: Memory Issues
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тАО02-02-2004 04:28 AM
тАО02-02-2004 04:28 AM