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Old 06-26-2006, 06:34 AM   #1
rammu_sivraj
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Hi Newbie here plz help me... physical memory


Hi..,
I'm using Red hat 2.4.20 o.s..
Anyone plz give me the exact command to view the physical memory of the system as well as the virtual memory(swap). other than dmesg and free cmds
help me in viewing those information..
Thanks in advance
Rammu
 
Old 06-26-2006, 06:45 AM   #2
tangle
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top will do it.
 
Old 06-26-2006, 06:45 AM   #3
SlackDaemon
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cat /proc/meminfo

this will give you the total physical memory and swap size

cheers!
 
Old 06-26-2006, 07:02 AM   #4
rammu_sivraj
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thanks a lot

Quote:
Originally Posted by tangle
top will do it.
thanks a lot yaar
 
Old 06-26-2006, 07:05 AM   #5
rammu_sivraj
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Quote:
Originally Posted by SlackDaemon
cat /proc/meminfo

this will give you the total physical memory and swap size

cheers!
thanks a lot yaar..
 
Old 06-26-2006, 10:40 AM   #6
sundialsvcs
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Incidentally, what you should expect to see is that nearly 100% of the physical memory is in-use for something, all the time. You might, for instance, see many megabytes being used for "buffers."

Like most OSes, Linux is lazy. Having brought something into memory once, it likes to keep it there until forced to get rid of it and bring something else in. Therefore, the amount of physical RAM that's being used at any particular time is not an indication of "goodness" or "badness!"

What you would look for, if you suspected a memory-related issue, is any sign of pressure being placed on the virtual memory system ... persistent swapping activity, actual memory-related waits being imposed on processes that otherwise would like to be running. If you don't actually see signs of pain, so to speak, then there isn't a memory-related problem.
 
Old 06-26-2006, 11:26 AM   #7
xpromisex
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...just a question but why exactly are you using such a dated version of red hat?
 
  


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