[Arm-dev] Using zram-swap

[Gordan Bobic]

Because swapping to SD card is slow, swapping to zram is fast, and zram
only takes about 1/2 of the RAM that it provides.
It's basically RAM compression.
It works and makes a positive difference, even without exceedingly slow
storage.

On Fri, Oct 12, 2018 at 5:16 PM Fred Gleason <fredg at paravelsystems.com>
wrote:

> On Oct 7, 2018, at 07:58, Robert Moskowitz <rgm at htt-consult.com> wrote:
>
> I have very recently learned about zram-swap.  Fedora-29-arm is using it.
> It supposedly makes a considerable difference even over HD swap.
>
> Since many (potential) users of Centos-arm do not have a ready HD, perhaps
> we can switch the image from a physical partition to zram? Or at least
> instructions to change to this on the wiki.
>
>
> Not to be utterly naive, but why is swap required on such systems at all?
> To take core RAM and repurpose it as swap would seem to vitiate the entire
> point of having a virtual memory subsystem in the first place.
>
> Cheers!
>
>
> |----------------------------------------------------------------------|
> | Frederick F. Gleason, Jr. |              Chief Developer             |
> |                           |              Paravel Systems             |
> |----------------------------------------------------------------------|
> | Perfection is reached, not when there is no longer anything to add,  |
> | but when there is no longer anything to take away.                   |
> |                                    -- Antoine de Saint-Exupery       |
> |----------------------------------------------------------------------|
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