Swap: Difference between revisions

(3 intermediate revisions by 2 users not shown)

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swapDevices = [{

device = "/var/lib/swapfile";

size = 16*1024; # 16 GB

size = 16*1024; # 16 GiB

}];

</nowiki>

}}

This will create a 16GB swapfile at <code>/var/lib/swapfile</code>. The <code>size</code> value [https://search.nixos.org/options?show=swapDevices.*.size is specified in ~~megabytes~~]. This will cause a swap file to be generated and an entry to be set up in <code>/etc/fstab</code>.

This will create a 16GB swapfile at <code>/var/lib/swapfile</code>. The <code>size</code> value [https://search.nixos.org/options?show=swapDevices.*.size is specified in mebibytes]. This will cause a swap file to be generated and an entry to be set up in <code>/etc/fstab</code>.

== Swap partition ==

Line 218:

You can see your current swappiness level by <code>cat /proc/sys/vm/swappiness</code>. The lowest accepted value is 0 while the maximum value is 200. The lowest sane value is 1 (0 causes the system to not scan for unused anonymous pages, i.e. memory freed by processes, at all).

For more on tuning the swap, start with [https://wiki.archlinux.org/title/Swap#~~swappiness~~ ArchWiki]'s description.

For more on tuning the swap, start with [https://wiki.archlinux.org/title/Swap#Swappiness ArchWiki]'s description.

== ZFS and swap ==

@@ Line 23: / Line 23: @@
 swapDevices = [{
    device = "/var/lib/swapfile";
-   size = 16*1024; # 16 GB
+   size = 16*1024; # 16 GiB
 }];
 </nowiki>
 }}
-This will create a 16GB swapfile at <code>/var/lib/swapfile</code>. The <code>size</code> value [https://search.nixos.org/options?show=swapDevices.*.size is specified in megabytes]. This will cause a swap file to be generated and an entry to be set up in <code>/etc/fstab</code>.
+This will create a 16GB swapfile at <code>/var/lib/swapfile</code>. The <code>size</code> value [https://search.nixos.org/options?show=swapDevices.*.size is specified in mebibytes]. This will cause a swap file to be generated and an entry to be set up in <code>/etc/fstab</code>.
 == Swap partition ==
@@ Line 218: / Line 218: @@
 You can see your current swappiness level by <code>cat /proc/sys/vm/swappiness</code>. The lowest accepted value is 0 while the maximum value is 200. The lowest sane value is 1 (0 causes the system to not scan for unused anonymous pages, i.e. memory freed by processes, at all).
-For more on tuning the swap, start with [https://wiki.archlinux.org/title/Swap#swappiness ArchWiki]'s description.
+For more on tuning the swap, start with [https://wiki.archlinux.org/title/Swap#Swappiness ArchWiki]'s description.
 == ZFS and swap ==