How to find AIX Free Memory?


 
Thread Tools Search this Thread
Operating Systems AIX How to find AIX Free Memory?
# 1  
Old 06-27-2012
How to find AIX Free Memory?

All,

AIX: 6.1 64 bits

How to find out Free memory available on AIX 6.1 64 bits

When I used :

Code:
svmon -G
               size       inuse        free         pin     virtual   mmode
memory      1048576      612109      191151      215969      549824   Ded-E
pg space    4325376        3288

               work        pers        clnt       other
pin          193849           0           0       22120
in use       541616           0       70493

What is the significance of memory(size) in the 1st Column, inuse and free?
Are they measured in KB?

Thanks for your time!
# 2  
Old 06-27-2012
If you search for "svmon" in this forum you'll find several tons of links. In about half of them the meaning of these values is explained.

So, there, for the umpteenth time:

"inuse" is what you have, minus what is unused ("free"). It is computational and cache memory added together. All these values are in units of memory pages, which is 4K in the overwhelming majority of cases.

Subtract "virtual" (=computational memory, that is: memory used by programs) from "inuse" to get the size of the cache. As a rule of thumb, as long as "virtual" is smaller than "inuse" times 0.9 (in other words progams use less than 90% of the memory) everything is OK, if it is higher you probably see paging activity in "vmstat".

I hope this helps.

bakunin
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

High Paging when lots of free memory AIX 5.3

I am new to AIX, I have few AIX 5.3 servers and I could see there are significant difference in paging space utilization on servers even though they are running same applications below server is working fine which shows 2-5 % paging usage throuh out the day cpu_scale_memp = 8... (12 Replies)
Discussion started by: bibish
12 Replies

2. AIX

How much total and free memory I have in my aix 5.3 server?

good morning, how I can know how much total and free memory I have in my AIX 5.3 server, and this is shown in megabytes or gigabytes? Thank you very much. (4 Replies)
Discussion started by: systemoper
4 Replies

3. AIX

Find Memory Utilization in AIX Server

How to find the memory utilization of AIX server using svmon -G output. Sample output for svmon -G command from my AIX test server, size inuse free pin virtual memory 4014080 3995443 18637 575916 1876393 pg space 1179648 ... (3 Replies)
Discussion started by: maruthu
3 Replies

4. Red Hat

how to find out free memory?

hi, I have done the below, but am confused as to how much memory is "free" please help thanks $ free total used free shared buffers cached Mem: 132033488 48827536 83205952 0 1007696 45404632 -/+ buffers/cache: 2415208 ... (7 Replies)
Discussion started by: JamesByars
7 Replies

5. Solaris

how to get the more memory free space (see memory free column)

Hi all, Could please let me know how to get the more memory free space (not added the RAM) in local zone. -bash-3.00# vmstat 2 5 kthr memory page disk faults cpu r b w swap free re mf pi po fr de sr s0 s1 s1 s1 in sy cs us sy... (3 Replies)
Discussion started by: murthy76
3 Replies

6. Solaris

How to find Total and Free Physical Memory and Logical Memory in SOLARIS 9

Hi, Im working on Solaris 9 on SPARC-32 bit running on an Ultra-80, and I have to find out the following:- 1. Total Physical Memory in the system(total RAM). 2. Available Physical Memory(i.e. RAM Usage) 3. Total (Logical) Memory in the system 4. Available (Logical) Memory. I know... (4 Replies)
Discussion started by: 0ktalmagik
4 Replies

7. AIX

Free Memory in aix

Hi, I want to know how to find out free physical memory in aix, (11 Replies)
Discussion started by: manoj.solaris
11 Replies

8. AIX

How to check free/total Memory in AIX

Friends , i have a question how to check the total memomry and free memory in AIX, We have vmstat ,svmon and topas commands.Which command among the will give the true figure. (6 Replies)
Discussion started by: vimalbhan
6 Replies

9. UNIX for Advanced & Expert Users

How to find memory and other resources in AIX

Hi, Im trying to find memory and other resources in IBM AIX. Please let me know how to do this. (3 Replies)
Discussion started by: R00tSc0rpi0n
3 Replies

10. UNIX for Dummies Questions & Answers

How do I find out how much swap and memory is free?

In Solaris 2.6 and 8 How do I find out how much swap and memory is free? Also how can I see how much memory each process is consuming? Thanks in advance (2 Replies)
Discussion started by: expos
2 Replies
Login or Register to Ask a Question