On 09/14/2014 06:49 AM, Ricardo Ramos wrote: > Has you can see, it looks like it's a similar pattern, could anyone explain > to me one or both of the work so that I can find out why are they using > almost the same percentage of CPU cores and exactly the same cores.
I can't speak for ddrescue, and I'm not sure I understand the graphs correctly, but dd(1) definitely only uses 1 CPU core. It's neiter a threaded program nor does it fork other processes (like rsync(1) would). Have a nice day, Berny
