what is the difference between swap partition and swap file
kassube at gmx.net
Wed Mar 11 20:10:36 UTC 2009
Da Liu wrote:
> can anybody tell me the what the difference is between them?
A swap file is an ordinary file written to a mounted file system. A swap
partition is a separate partition used for swap only.
> about the efficiency?
If you are worried about efficiency avoid swapping, i.e. install more
RAM or don't use that many huge applications simultaneously.
> I am not sure whether I should enlarge the /swap partition or make a
> swap file
> as a virtural swap partition.
> Which is better?
> I wanna increase the swap because my laptop cannot hibernate
> correctly. (1G memory, now the /swap is ~1G) .
In that case increase your swap partition because you can't use a swap
file to hibernate. From <https://help.ubuntu.com/community/SwapFaq>:
| The hibernation feature (suspend-to-disk) writes out the contents of
| the memory to the swap partition before turning off the machine.
| Therefore, your swap partition should be at least as big as your RAM
| size. The hibernation implementation currently used in Ubuntu, swsusp,
| needs a swap or suspend partition, and can not use a swap file on an
| active file system.
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