LINUX - HOW TO CHECK TOTAL AND USED SWAP SPACE ON LINUX HOSTS

Following commands can be used to check total swap space

fdisk -l

Below is sample output of above command. Swap line highlighted in bold.

 

/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 1109 8388608 83 Linux
/dev/sda3 1109 1631 4194304 83 Linux
/dev/sda4 1631 48509 376552448 5 Extended
/dev/sda5 1631 1762 1048576 82 Linux swap / Solaris
/dev/sda6 1762 48509 375501824 83 Linux

cat /proc/swaps

Below is sample output of above command.

Filename Type Size Used Priority
/dev/sda5 partition 1048572 0 -1

grep -i swap /proc/meminfo

 

Above grep command gives total and used swap space details as well.

Below is sample output of above command.

SwapCached: 0 kB
SwapTotal: 1048572 kB
SwapFree: 1048572 kB

 

 

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Products to which Article Applies

All Linux OS’s

Search Keywords:  memory disk swap swapping space utilization total swapped utilized utilize

Article Author: Tarun Boyella