Re: Is there a way to make the pi use swap?
My /etc/fstab just has
/var/swap2 none swap sw 0 0
That's for a swap file which was made by dding 0s into it, then running mkswap.
You'd replace /var/swap2 with /dev/sda2
Sounds like you're just not loading it from your fstab. Should load
every boot. Nothing new or tricky there.
On 9/14/18, Gene Heskett <email@example.com> wrote:
> As I attempt to go beyond the original setup on the pi 3b, which was to
> run linuxcnc on it.
> But since it has 1/2 its cpu power left over, I am finding the lack of
> memory to be a pita. Starting a camera application so I can calibrate
> out the errors in the lathes mechanics then kills other services like
> ssh, or even the whole thing so bad it needs a powerdown reboot.
> I have a couple ssd's mounted each with a couple gigs of swap, but the pi
> isn't using them, at least not as expected.
> What would be the chain of things to check and adjust so it does use the
> available swap? There is a 10Gb defined in the /etc/fstab, on partition
> sda2, one of the 2 ssd's plugged into a usb hub.
> If swapon -a is run, I can see 999megs of swap in htop, which goes away
> after a swapoff -a, both of course as sudo root.
> Thanks for any clues.
> Cheers, Gene Heskett
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
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