Mikkel L. Ellertson wrote:
dd should not use lots of CPU time. The bottleneck is disk access speed. Depending on the drivers used, and some tweaking, the system may be spending a lot of time in the disk driver routines doing basically nothing.
CPU use will depend on your disk controller. IDE controllers have a lot of CPU overhead for seeks/positioning even if DMA is used for the data transfer - that's why people still use SCSI for busy servers.
-- Les Mikesell lesmikesell@xxxxxxxxx
