Most of the time, I post entries in this blog to share knowledge with others. Sometimes, I post an entry so that in the future, I can quickly find an answer to something I know I forgot. This is one of those times. If other’s find this useful, great!
I’ve been working on a Linux system that has had some memory-related issues for one of my Oracle databases. I ended up needing to increase the swap space as it was set too low. After swap was increased, I saw some swap space being used and I wanted to know if this was Oracle using swap or something else. So who is using my swap space on this Linux system? I can run the following command to find out.
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{print ""}' $file; done | sort -k 2 -n
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To sort in reverse order and then stop the output from scrolling off the screen, use this version instead.
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less
