[arch-general] Install wiki - recommendations regarding 'swap' ?

[Leonidas Spyropoulos]

On Sun, Aug 5, 2012 at 10:30 AM, Mantas Mikulėnas <grawity at gmail.com> wrote:
> On Sun, Aug 5, 2012 at 4:50 AM, Scott Lawrence <bytbox at gmail.com> wrote:
>> If you want to hibernate, you need at least as much as you have RAM.
>
> I'm not sure this is true. AFAIK, both swsusp and uswsusp try to
> reduce the hibernation image as much as possible – I think
> /sys/power/image_size defaults to 1 GB for swsusp. (A large part of
> RAM is usually used by cache, which can be just freed before
> hibernating.)
>
> --
> Mantas Mikulėnas

As far as I know linux kernel expects a swap by default (that might
have changed after 3 kernel though..).
Personally I have 8Gb of RAM and rarely some KB are written to the
swap. Even when I had 4Gb or memory it was the same, rarely used it.

I have set swap to be 500Mb and set the kernel rarely to swap anything
to my SSD.

Note: for SSDs it's not recommended to have the swap writing a lot to
the disk as it wears off the SSD.

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