I'm not at a machine, linux doesn't zero the swap "file" does it? if i set vm.sw... | Hacker News

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		genewitch 28 days ago \| parent \| context \| favorite \| on: Running out of disk space in production I'm not at a machine, linux doesn't zero the swap "file" does it? if i set vm.swappiness = 0, will your "trick" work if i never hit memory pressure?

zrm 28 days ago [–]

If you create the file with 'mkswap --file' it allocates the blocks. Trying to use 'swapon' with an existing sparse file won't remove the holes for you but does notice them and then refuse to use it.

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