Latest revision as of 10:23, 20 August 2016

Raspberry Pi

dphys-swapfile swapoff
dphys-swapfile uninstall

Remove dphys-swapfile application and dependency

apt-get purge -y dphys-swapfile dc

I've written this based on my experience of Bananian which is Debian based.

swapoff /swapfile1

rm -f /swapfile1

The parition needs to be created as a swapfile and not ext3, ext4 or something else.

mktemp /dev/sda1

Create a file of 1GB

dd if=/dev/zero of=/swapfile1 bs=512 count=2048
chmod 600 /swapfile1
mkswap /swapfile1
swapon /swapfile1

vi /etc/fstab

Add an entry or change the existing one

/dev/sda1 swap swap defaults 0 0

or

/swapfile1 swap swap defaults 0 0

vi /etc/sysctl.conf

vm.swappiness Values

Value	Strategy
0	The kernel will swap only to avoid an out of memory condition, when free memory will be below vm.min_free_kbytes limit. See the "VM Sysctl documentation".
1	Kernel version 3.5 and over, as well as Red Hat kernel version 2.6.32-303 and over: Minimum amount of swapping without disabling it entirely.
10	This value is sometimes recommended to improve performance when sufficient memory exists in a system.
60	The default value.
100	The kernel will swap aggressively.

After reboot check current value

cat /proc/sys/vm/swappiness

@@ Line 1: / Line 1: @@
+= Raspberry Pi =
+== Remove Swapfile ==
+<pre>
+dphys-swapfile swapoff
+dphys-swapfile uninstall
+</pre>
+Remove dphys-swapfile application and dependency
+<pre>
+apt-get purge -y dphys-swapfile dc
+</pre>
+= Banana Pi =
 I've written this based on my experience of Bananian which is Debian based.
-= Deleting Swap File =
+== Deleting Swap File ==
 <pre>
 swapoff /swapfile1
@@ Line 75: / Line 89: @@
 </pre>
-[[Category : Banana Pi]]  [[Category : Linux]]
+[[Category : Raspbian]] [[Category : Banana Pi]]  [[Category : Linux]]