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memory usage in AIX [message #439209]

Thu, 14 January 2010 22:57

soundar
Messages: 9
Registered: October 2009

Junior Member

Hi all,

I m creating 10G database in AIX server.I have tospecify SGA value in Init file for allocating memory to instance.

I want to know the memory available in the server.
I used VMSTAT command.

System configuration: lcpu=8 mem=15808MB

kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
1 1 750725 811803 0 0 0 0 0 0 18 243 197 0 0 99 0

In this can anybody tell me which is total memory size and available memory size as i m not able to find out.

Thanks

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Re: memory usage in AIX [message #439211 is a reply to message #439209]

Thu, 14 January 2010 23:07

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

use "top" instead

Code: [Select all] [Show/ hide]

top - 21:05:53 up 1 day,  1:43,  3 users,  load average: 0.29, 0.23, 0.15
Tasks: 179 total,   1 running, 177 sleeping,   1 stopped,   0 zombie
Cpu(s):  8.6%us, 13.1%sy,  0.0%ni, 77.0%id,  0.0%wa,  1.2%hi,  0.0%si,  0.0%st
Mem:   1017032k total,   962804k used,    54228k free,    18100k buffers
Swap:  2980016k total,    65140k used,  2914876k free,   552364k cached

Mem: 1017032k total

[Updated on: Thu, 14 January 2010 23:07]

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Re: memory usage in AIX [message #439212 is a reply to message #439209]

Thu, 14 January 2010 23:12

soundar
Messages: 9
Registered: October 2009

Junior Member

top cmd is not working

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Re: memory usage in AIX [message #439213 is a reply to message #439212]

Thu, 14 January 2010 23:20

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

dmesg | grep -i memory

lots of chaff & 1 kernel

HTH & YMMV

Code: [Select all] [Show/ hide]

bcm@bcm-laptop:/dev$ free -m
             total       used       free     shared    buffers     cached
Mem:           993        963         29          0         14        540
-/+ buffers/cache:        408        584
Swap:         2910         63       2846

[Updated on: Thu, 14 January 2010 23:21]

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Re: memory usage in AIX [message #439214 is a reply to message #439212]

Thu, 14 January 2010 23:27

soundar
Messages: 9
Registered: October 2009

Junior Member

it is not working eiether...

OS is AIX .. it is displaying command not found

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Re: memory usage in AIX [message #439217 is a reply to message #439214]

Thu, 14 January 2010 23:33

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

http://www.lmgtfy.com/?q=unix+ram+size+AIX

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Re: memory usage in AIX [message #439232 is a reply to message #439209]

Fri, 15 January 2010 02:56

martijn
Messages: 286
Registered: December 2006
Location: Netherlands

Senior Member

soundar wrote on Fri, 15 January 2010 05:57

System configuration: lcpu=8 mem=15808MB

kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
1 1 750725 811803 0 0 0 0 0 0 18 243 197 0 0 99 0

I probably don't understand your question, because the total amount of (physical) memory is already there : 15808MB
The free amount of memory will vary a lot in a running system. However 811803 will probably the number of free bocks or the amount of free memory.
(I'm not on an AIX machine now so you have to look into the man-pages yourself).

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