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тАО11-26-2008 08:59 PM
тАО11-26-2008 08:59 PM
In my view, not familair with linux, I would try an build a model show the number of process and their average working set and take this is the minimum memory required.
Would someone like to share the memory sizing methodologies ?
Solved! Go to Solution.
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тАО11-27-2008 03:31 AM
тАО11-27-2008 03:31 AM
Re: memory sizing methodology ?
You are correct .. i think linux will use the physical memory as a file system cash & it will keep most freequently used files in ths memory.
I had instlled one tool NMON, i think that will show it seperatly
Regards
Prasu
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тАО11-27-2008 04:21 AM
тАО11-27-2008 04:21 AM
SolutionIts a very cool one
http://www.ibm.com/developerworks/wikis/display/WikiPtype/nmon
Regards
Prasu
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тАО11-27-2008 05:31 AM
тАО11-27-2008 05:31 AM
Re: memory sizing methodology ?
http://forums.cacti.net/about11376.html
As you mentioned, other tools can show 100% of memory in use where this template can tell you where the memory is used. You can also configure alerting if there is no cache memory available or too much swap in use.
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тАО11-27-2008 06:28 AM
тАО11-27-2008 06:28 AM
Re: memory sizing methodology ?
Use the free command to identify the real memory usage, without the buffers and the cache.
Use the vmstat command to identify page in and page outs. If so, then you have memory shortage.
This is not sizing, this is monitoring. If you want to do some sizing, that is, predict how much memory (or other resources) you will need in the future, it depends of what is doing your server.