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Exchange space expansion

1. Exchange space​

Swap space is a mechanism used by the operating system to expand available memory. It can continue to run when there is insufficient memory, avoiding program crashes or system freezes!

note

: The access speed of swap space is much lower than that of physical memory

2. Swap space expansion​

sudo systemctl disable nvzramconfig
sudo fallocate -l 8G /var/8GB.swap
sudo mkswap /var/8GB.swap
sudo swapon /var/8GB.swap
echo "/var/8GB.swap none swap sw 0 0" | sudo tee -a /etc/fstab

image-20250111115707961

2.1. Disable ZRAM swap configuration​

Disable ZRAM swap configuration on Jetson devices: ZRAM compresses and stores memory pages in memory to reduce reliance on disk.

sudo systemctl disable nvzramconfig

2.2, Create 8GB file​

Use fallocate to create a file of 8GB in size, located in the /var/8GB.swap path.

sudo fallocate -l 8G /var/8GB.swap

2.3. Set the swap space format​

sudo mkswap /var/8GB.swap

2.4. Enable swap space​

sudo swapon /var/8GB.swap

2.5. Permanently start swap space​

echo "/var/8GB.swap none swap sw 0 0" | sudo tee -a /etc/fstab

3. Verify the expansion​

After restarting the system, the system swap space increases to 8GB:

image-20250114114800477