Difference between revisions of "Swapon"
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− | <code>swapon</code>/<code>swapoff</code> enable/disable devices and files for [[paging]] and [[swapping]] http://man7.org/linux/man-pages/man8/swapon.8.html | + | {{lowercase}} |
+ | <code>swapon</code>/<code>[[swapoff]]</code> enable/disable devices and files for [[paging]] and [[swapping]] and it is included on the <code>[[mount]]</code> package. | ||
+ | * Man page: http://man7.org/linux/man-pages/man8/swapon.8.html | ||
+ | * <code>[[swapon]] /[[dev/nvme]]5n1</code> | ||
− | * <code>swapon -s</code> | + | * <code>[[swapon -s]]</code> or <code>[[swapon --show]]</code> |
− | * <code>cat /[[proc]]/ | + | swapon /dev/nvme#n1 |
+ | (no output) | ||
+ | |||
+ | swapon --show | ||
+ | NAME TYPE SIZE USED PRIO | ||
+ | /dev/[[dm]]-2 partition 976M 974.8M -2 | ||
+ | |||
+ | swapon --show | ||
+ | (No output if not swap active) | ||
+ | |||
+ | swapon -s | ||
+ | Filename Type Size Used Priority | ||
+ | [[/swap.img]] file 2023420 104312 -2 | ||
+ | |||
+ | * <code>cat [[/proc/swaps]]</code> | ||
+ | |||
+ | |||
+ | == Errors == | ||
+ | Oct 12 12:55:03 SERVER swapon[449]: [[swapon]]: /[[swap.img]]: swapon failed: [[Read-only file system]] | ||
+ | |||
+ | == Related terms == | ||
+ | * <code>[[free]]</code> | ||
+ | * [[Memory]]: <code>[[sar -r]]</code> | ||
+ | * [[Swap]]: <code>[[sar -S]]</code> | ||
+ | * <code>[[sar -W (Swapping)]]</code> | ||
+ | * <code>[[/etc/fstab]]</code> and <code>[[/proc/swaps]]</code> | ||
+ | * <code>[[systemctl --type swap]]</code> | ||
+ | * <code>[[mkswap]]</code> | ||
+ | * [[Add a swap disk]] | ||
== See also == | == See also == | ||
* {{swap}} | * {{swap}} | ||
+ | * {{mount}} | ||
* {{memory}} | * {{memory}} | ||
[[Category:Linux]] | [[Category:Linux]] |
Latest revision as of 16:00, 24 August 2023
swapon
/swapoff
enable/disable devices and files for paging and swapping and it is included on the mount
package.
swapon /dev/nvme#n1 (no output)
swapon --show NAME TYPE SIZE USED PRIO /dev/dm-2 partition 976M 974.8M -2
swapon --show (No output if not swap active)
swapon -s Filename Type Size Used Priority /swap.img file 2023420 104312 -2
cat /proc/swaps
Errors[edit]
Oct 12 12:55:03 SERVER swapon[449]: swapon: /swap.img: swapon failed: Read-only file system
Related terms[edit]
free
- Memory:
sar -r
- Swap:
sar -S
sar -W (Swapping)
/etc/fstab
and/proc/swaps
systemctl --type swap
mkswap
- Add a swap disk
See also[edit]
- Swap,
swapon
,swapoff
,mkswap
,swaplabel
,free
,sar -r
,sar -S
,sar -W
,vmstat
,vm.swappiness
,/proc/swaps
,/etc/fstab
, Add a swap disk,systemd.swap
- File systems:
mount
,umount
,findmnt
,find
,swapon
,swapoff
,UUID, blkid
, mount options:/etc/fstab
,udisksctl mount
,guestmount
,/proc/mounts
,fstrim
,systemd-mount
,defaults
- Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo,
vmstat
, NAND, DDR,lsmem
,/dev/shm
,/proc/meminfo
,sar -r
, IOMMU,pmem
, Memory management, Garbage collector, THP, Linux Huge Page TLB
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