How to Increase Swap Space on Jetson Modules?
WHAT YOU WILL LEARN?
1- How to create the extra swap partition?
2- How to enable the swap partition?
3- How to remove the swap partiton?
ENVIRONMENT
Hardware: DSBOX-TX2NX with NVME SSD
OS: Jetpack 4.6
Language: BASH
In this blog-post, we will increase the swap memory size on Jetson. First, we will create the extra swap partition. Then, we will enable it & set it permanent. Finally, we will deactivate it & clear its partition.
Creating the Extra Swap Partition
First, check the current swap size with the following command below:
free -h
Check the free storage on the system.
df -h
Then, create a partition & check its size (In this tutorial, we’ve created the extra swap file named as “swapfile”. It’s size is 4GB).
sudo fallocate -l 4G /swapfile
ls -lh /swapfile
Enabling the Swap Partition
Give only root privileges on the swap file to avoid other users’ access. Then, set it up as swap area & enable it.
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
Afterwards, check the all swap size to confirm it.
free -h
Now, get the /etc/fstab file’s backup & write the new swap partition on it for setting permanently.
sudo cp /etc/fstab /etc/fstab.bak
echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab
If you won’t need to use this swap partition later, you can remove it with the next section below.
Removing the Swap Partition
Check the current swap size & its definition at the /etc/fstab file on the Jetson.
free -h
cat /etc/fstab
Then, move the previous fstab file on the newer one & check it.
sudo mv /etc/fstab.bak /etc/fstab
cat /etc/fstab
Afterwards, deactivate the swap file & remove it.
sudo swapoff -v /swapfile
sudo rm /swapfile
free -h
As you can see that, the extra swap partition removed successfully.
Thank you for reading our blog post.
