Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Calculating Swap space

Posted on 2007-11-29
6
Medium Priority
?
1,899 Views
Last Modified: 2013-12-27
Hi Folks,

Can anyone let me know what is the actual swap space (in MB) shown in the below output. I'm bit confused in this.

bash-2.03# swap -l
swapfile                     dev          swaplo     blocks      free
/dev/dsk/c0t0d0s1   118,9             16        8194640  8194640
bash-2.03# swap -s
total: 26128k bytes allocated + 5440k reserved = 31568k used, 7514640k available
bash-2.03# uname -a SunOS meridian 5.8 Generic_117350-41 sun4u sparc SUNW,Ultra-Enterprise
bash-2.03#

Thanks,
Ashok
0
Comment
Question by:rdashokraj
  • 3
  • 2
6 Comments
 
LVL 22

Accepted Solution

by:
Brian Utterback earned 225 total points
ID: 20373160
From the swap -l, you have a bit under 4GB of disk swap specified.
From the swap -s, you have 31MB used, and 7GB available of
total swap. Remember, the swap -s includes disk swap AND ram swap.
So, I would guess that this is a system with about 4 GB of memory and
4GB of disk swap.
0
 
LVL 3

Assisted Solution

by:thigger_uk
thigger_uk earned 150 total points
ID: 20373187
Looks like you have 7546208kbytes of swap total (=7369Mb) of which you've used 31568kbytes (30.8Mb)


See http://wwwcgi.rdg.ac.uk:8081/cgi-bin/cgiwrap/wsi14/poplog/man/1M/swap (or 'man swap') for further info.
0
 

Author Comment

by:rdashokraj
ID: 20373480
Hi Blu,
Please tell me using 'swap -l' command how would i calculate the swap space as the values are given in blocks. How much each block denotes?

Thanks.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 3

Assisted Solution

by:thigger_uk
thigger_uk earned 150 total points
ID: 20374003
Blocks are 512 bytes
0
 

Author Comment

by:rdashokraj
ID: 20375218
so it should be calculated as 8194640 * 512 / (1024*1024) = 4001.29 MB, which approx 4GB.

Yes it got it. Thanks for the hint.
0
 

Author Closing Comment

by:rdashokraj
ID: 31411643
Thanking you all.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Attention: This article will no longer be maintained. If you have any questions, please feel free to mail me. jgh@FreeBSD.org Please see http://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-update-server/ for the updated article. It is avail…
Java performance on Solaris - Managing CPUs There are various resource controls in operating system which directly/indirectly influence the performance of application. one of the most important resource controls is "CPU".   In a multithreaded…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Suggested Courses
Course of the Month13 days, 12 hours left to enroll

963 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question