Note you can have swap without using it (except where you would otherwise crash with "out of memory).
There's a kerrnel VM sysctl called "swappiness" that governs this. I don't recallspecifics but some Google-fu should find it for you.
-- Sent from my Palm Pre
On Mar 25, 2010 11:37 PM, PiousMinion <piousminion@gmail.com> wrote:
On Thu, Mar 25, 2010 at 11:22 PM, Eben King <eben01@verizon.net> wrote:
Is it possible to set up a machine with no swap so it'll suspend to a file on a remote server accessible only through an 802.11 card? Sure, it'll be slow, but that's OK. Right now the share is via Samba but I could figure out NFS if Samba is a no-go.
---eben QebWenE01R@vTerYizUonI.nOetP royalty.mine.nu:81
Two atoms are walking along. Suddenly, one
stops. The other says, "What's wrong?" "I've lost
an electron." "Are you sure?" "I'm positive!"
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Running with no swap isn't generally a good idea unless you've got a butt load of ram, but if you have a butt load of ram you probably have a few gigs to spare on your machine. *shrugs*
There is also a huge security concern if trying to dump the entire contents of your ram to a remote location. All your passwords, encryption keys, web sessions, and everything else will be transmitted and stored somewhere else. Yikes.
I'm fairly sure this can be done if you prepare an appropriate initrd/initramfs, but I seriously doubt any distribution supports anything like this natively. You'd likely have to modify the initrd/initramfs by hand.
Again, this is a very bad idea, but should be possible. --Clayton Holloway
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