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0x7d7b/RPI_SWAP.md

Last active November 28, 2021 10:18
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Raspberry Pi Swap File
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RPI_SWAP.md

This is a small howto about changing the swap file size on a Raspberry Pi which runs with a raspbian operating system.

Configuration

The swap file size is configured in the /etc/dphys-swapfile file. By default its size is 100 MB. To change that set the CONF_SWAPSIZE value to something else. Here I chanted it to 500 MB:

CONF_SWAPSIZE=500

Reload

Now the dphys-swapfile.service service needs to be reloaded:

sudo systemctl restart dphys-swapfile.service

Verify

To verify the new swap file size type in the free command:

$ free
              total        used        free      shared  buff/cache   available
Mem:         948296      462200       46824       32152      439272      441208
Swap:        511996      130048      381948

The new swap file size is shown correctly. So we're done.

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