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memory usage in AIX [message #439209] Thu, 14 January 2010 22:57 Go to next message
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
Re: memory usage in AIX [message #439211 is a reply to message #439209] Thu, 14 January 2010 23:07 Go to previous messageGo to next message
BlackSwan
Messages: 22905
Registered: January 2009
Senior Member
use "top" instead

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 Go to previous messageGo to next message
soundar
Messages: 9
Registered: October 2009
Junior Member
top cmd is not working
Re: memory usage in AIX [message #439213 is a reply to message #439212] Thu, 14 January 2010 23:20 Go to previous messageGo to next message
BlackSwan
Messages: 22905
Registered: January 2009
Senior Member
dmesg | grep -i memory

lots of chaff & 1 kernel

HTH & YMMV

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 Go to previous messageGo to next message
soundar
Messages: 9
Registered: October 2009
Junior Member
it is not working eiether...

OS is AIX .. it is displaying command not found
Re: memory usage in AIX [message #439217 is a reply to message #439214] Thu, 14 January 2010 23:33 Go to previous messageGo to next message
BlackSwan
Messages: 22905
Registered: January 2009
Senior Member
http://www.lmgtfy.com/?q=unix+ram+size+AIX
Re: memory usage in AIX [message #439232 is a reply to message #439209] Fri, 15 January 2010 02:56 Go to previous message
martijn
Messages: 278
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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