🚀 go-pugleaf

Yes BuildDisk makes a contigious swap file.  Next even goes  
to the effort to put the swapfile near the shared libraries  
to minimize head movement.

However, when the swap file grows beyond the lowwater mark,  
it will be allocated as needed from wherever there is space  
on the disk.  This can be a real pain.
Thus ideally you would create a swap file of the max size  
you ever intend to use right at the beginning when you  
built the disk.

If you make the mistake of deleting the swap file, then  
when it's recreated, it may not be in the same place.  This  
can make a significant difference to the performance.