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A good way to do this is to create a swap file, both because then you can use it as a swap file until you need to delete it and because swap files are required
by zrm 6mo ago
A good way to do this is to create a swap file, both because then you can use it as a swap file until you need to delete it and because swap files are required to not be sparse.
- genewitch 6mo agoI'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 6mo agoIf 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.