I am trying to DD a raw file to an SSD from a spin usb spin drive. I have tried compression (but it obviously has to expand before it can copy). I have watched the details of the arm7 gb ram device, and it's only using 27%-50% of the available processing at one time. I am trying my best to get this copying down to 3 hours but it's taking 6+ hours right now.
I am using bs=1m, I really don't know what I can do to improve the DD. Is there anyway I can maybe fork the process and utilize the processor?
I am DDing this from an encrypted volume using a branch of truecrypt; I know this will slow it down hence why I was compressing, so the system had less to decrypt but had to unpackage.