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Let's Talk DD !

I have experienced major performance issues with DD and cannot find valid justifications for that.

Playing with many different parameters (bs, sync, noerror, ...) I have always fairly much the same results:

  • First few seconds are 3.4 GB/min
  • Then massive drop down to 50 MB/min
  • Copying NULs does not reproduce the above symptoms and speed is stable at 3.4GB/min.

I see in blogs that I am not the only one with this issue but cannot find an answer...