On 1/20/21 8:14 AM, Matthew Miller wrote:
On Sun, Jan 17, 2021 at 05:58:45PM +0000, Zbigniew Jędrzejewski-Szmek wrote:
Someone on Fedora Discussion¹ noticed this number and wonders if it's meant
to be 8192. Not that it probably matters very much, but, you know, nice
round numbers and all.
Yep, it was. I'll fix the wiki.
On another note, someone asked what
"(Note that the device is destroyed and recreated during restart. This means
that all pages will be "swapped in", i.e. decompressed. On machines with low
memory, rebooting might be a better option.)"
means, and I realized I actually have no idea. Does this mean that low
memory machines should reboot often? Or is this just about testing after
changing settings?
That's about changing settings. When restarting the zram service, it
has to remove the swap device which forces all the swapped pages back
into RAM. This might not be successful if you don't have enough RAM, so
if you are using a low memory device, you should reboot instead.
Although if you see that you aren't using too much swap, then it could
be ok.
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